IDEMPIERE-4694 Implement thread safe, annotation based osgi event han… (#571)

* IDEMPIERE-4694 Implement thread safe, annotation based osgi event handling

Make sure the component register in the event handler unit test cases
wouldn't have impact on other unit test cases.

org.adempiere.base/META-INF/MANIFEST.MF

@@ -21,8 +21,14 @@ Export-Package: bsh,
  it.sauronsoftware.cron4j,
  org.adempiere.apps.graph,
  org.adempiere.base,
+ org.adempiere.base.ds,
  org.adempiere.base.equinox,
  org.adempiere.base.event,
+ org.adempiere.base.event.annotations,
+ org.adempiere.base.event.annotations.doc,
+ org.adempiere.base.event.annotations.imp,
+ org.adempiere.base.event.annotations.po,
+ org.adempiere.base.event.annotations.process,
  org.adempiere.exceptions,
  org.adempiere.impexp,
  org.adempiere.model,

org.adempiere.base/src/org/adempiere/base/Core.java

@@ -29,6 +29,7 @@ import javax.script.ScriptEngine;
 import javax.script.ScriptEngineFactory;
 import javax.script.ScriptEngineManager;
 
+import org.adempiere.base.event.IEventManager;
 import org.adempiere.model.IAddressValidation;
 import org.adempiere.model.IShipmentProcessor;
 import org.adempiere.model.ITaxProvider;
@@ -1024,4 +1025,26 @@ public class Core {
 		}
 		return factoryService;
 	}
+	
+	private static IServiceReferenceHolder<IEventManager> s_eventManagerReference = null;
+	
+	/**
+	 * 
+	 * @return {@link IEventManager}
+	 */
+	public static IEventManager getEventManager() {
+		IEventManager eventManager = null;
+		if (s_eventManagerReference != null) {
+			eventManager = s_eventManagerReference.getService();
+			if (eventManager != null)
+				return eventManager;
+		}
+		IServiceReferenceHolder<IEventManager> serviceReference = Service.locator().locate(IEventManager.class).getServiceReference();
+		if (serviceReference != null) {
+			eventManager = serviceReference.getService();
+			s_eventManagerReference = serviceReference;
+		}
+		
+		return eventManager;
+	}
 }

org.adempiere.base/src/org/adempiere/base/event/AbstractEventHandler.java

@@ -13,7 +13,6 @@
  *****************************************************************************/
 package org.adempiere.base.event;
 
-import java.util.List;
 import java.util.UUID;
 
 import org.compiere.model.PO;
@@ -127,7 +126,7 @@ public abstract class AbstractEventHandler implements EventHandler {
 	 * @return PO
 	 */
 	protected PO getPO(Event event) {
-		return getEventProperty(event, IEventManager.EVENT_DATA);
+		return EventHelper.getPO(event);
 	}
 
 	/**
@@ -135,7 +134,7 @@ public abstract class AbstractEventHandler implements EventHandler {
 	 * @return ProcessInfo
 	 */
 	protected ProcessInfo getProcessInfo(Event event) {
-		return getEventProperty(event, IEventManager.EVENT_DATA);
+		return EventHelper.getProcessInfo(event);
 	}
 
 	/**
@@ -144,7 +143,7 @@ public abstract class AbstractEventHandler implements EventHandler {
 	 * @param event
 	 */
 	protected <T> T getEventData(Event event) {
-		return getEventProperty(event, IEventManager.EVENT_DATA);
+		return EventHelper.getEventData(event);				
 	}
 
 	/**
@@ -153,9 +152,8 @@ public abstract class AbstractEventHandler implements EventHandler {
 	 * @param event
 	 * @param property
 	 */
-	@SuppressWarnings("unchecked")
 	protected <T> T getEventProperty(Event event, String property) {
-		return (T) event.getProperty(property);
+		return EventHelper.getEventProperty(event, property);
 	}
 
 	/**
@@ -163,10 +161,7 @@ public abstract class AbstractEventHandler implements EventHandler {
 	 * @param e
 	 */
 	protected void addError(Event event, Throwable e) {
-		String msg = e.getLocalizedMessage();
+		EventHelper.addError(event, e);
-		if (msg == null)
-			msg = e.toString();
-		addErrorMessage(event, msg);
 	}
 
 	/**
@@ -174,8 +169,6 @@ public abstract class AbstractEventHandler implements EventHandler {
 	 * @param errorMessage
 	 */
 	protected void addErrorMessage(Event event, String errorMessage) {
-		List<String> errors = getEventProperty(event, IEventManager.EVENT_ERROR_MESSAGES);
+		EventHelper.addErrorMessage(event, errorMessage);
-		if (errors != null)
-			errors.add(errorMessage);
 	}
 }

org.adempiere.base/src/org/adempiere/base/event/EventHelper.java

@@ -0,0 +1,107 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event;
+
+import java.util.List;
+
+import org.compiere.model.PO;
+import org.compiere.process.ProcessInfo;
+import org.osgi.service.event.Event;
+
+/**
+ * Helper methods for event handler
+ * @author hengsin
+ */
+public final class EventHelper {
+
+	/**
+	 * private constructor
+	 */
+	private EventHelper() {
+	}
+
+	/**
+	 * @param event
+	 * @return PO
+	 */
+	public static PO getPO(Event event) {
+		PO po = null;
+		Object data = getEventData(event);
+		if (data instanceof PO)
+			po = (PO)data;
+		else if (data instanceof POEventData)
+			po = ((POEventData) data).getPo();
+		return po;
+	}
+
+	/**
+	 * @param event
+	 * @return ProcessInfo
+	 */
+	public static ProcessInfo getProcessInfo(Event event) {
+		return getEventProperty(event, IEventManager.EVENT_DATA);
+	}
+
+	/**
+	 *
+	 * @param <T>
+	 * @param event
+	 */
+	public static <T> T getEventData(Event event) {
+		return getEventProperty(event, IEventManager.EVENT_DATA);
+	}
+
+	/**
+	 *
+	 * @param <T>
+	 * @param event
+	 * @param property
+	 */
+	@SuppressWarnings("unchecked")
+	public static <T> T getEventProperty(Event event, String property) {
+		return (T) event.getProperty(property);
+	}
+
+	/**
+	 * @param event
+	 * @param e
+	 */
+	public static void addError(Event event, Throwable e) {
+		String msg = e.getLocalizedMessage();
+		if (msg == null)
+			msg = e.toString();
+		addErrorMessage(event, msg);
+	}
+
+	/**
+	 * @param event
+	 * @param errorMessage
+	 */
+	public static void addErrorMessage(Event event, String errorMessage) {
+		List<String> errors = getEventProperty(event, IEventManager.EVENT_ERROR_MESSAGES);
+		if (errors != null)
+			errors.add(errorMessage);
+	}
+}

org.adempiere.base/src/org/adempiere/base/event/FactsEventData.java

@@ -24,7 +24,7 @@ import org.compiere.model.PO;
  * @author hengsin
  *
  */
-public class FactsEventData {
+public class FactsEventData implements POEventData {
 	private MAcctSchema acctSchema;
 	private List<Fact> facts;
 	private PO po;

org.adempiere.base/src/org/adempiere/base/event/IEventManager.java

@@ -13,6 +13,7 @@
  *****************************************************************************/
 package org.adempiere.base.event;
 
+import org.adempiere.base.event.annotations.BaseEventHandler;
 import org.osgi.service.event.Event;
 import org.osgi.service.event.EventHandler;
 
@@ -25,6 +26,11 @@ public interface IEventManager {
 
 	public static final String EVENT_DATA = "event.data";
 	public static final String EVENT_ERROR_MESSAGES = "event.errorMessages";
+	public static final String IMPORT_TABLE_NAME_PROPERTY = "importTableName";
+	public static final String TABLE_NAME_PROPERTY = "tableName";
+	public static final String PROCESS_UID_PROPERTY = "processUUID";
+	public static final String CLASS_NAME_PROPERTY = "className";
+	public static final String PROCESS_CLASS_NAME_PROPERTY = "processClassName";
 
 	/**
 	 * Initiate asynchronous delivery of an event. This method returns to the
@@ -94,5 +100,14 @@ public interface IEventManager {
 	 * @return true if unregistration is done, false otherwise
 	 */
 	public abstract boolean unregister(EventHandler eventHandler);
+	
+	/**
+	 * 
+	 * @param eventHandler
+	 * @return
+	 */
+	public default boolean register(BaseEventHandler eventHandler) {
+		return register(eventHandler.getTopics(), eventHandler.getFilter(), eventHandler);
+	}
 
 }

org.adempiere.base/src/org/adempiere/base/event/POEventData.java

@@ -0,0 +1,40 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event;
+
+import org.compiere.model.PO;
+
+/**
+ * 
+ * Event data that contains PO
+ * @author hengsin
+ *
+ */
+public interface POEventData {
+	/**
+	 * @return {@link PO}
+	 */
+	public PO getPo();
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/AfterLoadPref.java

@@ -0,0 +1,45 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.PREF_AFTER_LOAD)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterLoadPref {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/AfterLogin.java

@@ -0,0 +1,45 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.AFTER_LOGIN)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterLogin {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/AfterLoginEventDelegate.java

@@ -0,0 +1,63 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations;
+
+import org.adempiere.base.event.EventHelper;
+import org.adempiere.base.event.LoginEventData;
+import org.osgi.service.event.Event;
+
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public abstract class AfterLoginEventDelegate extends EventDelegate {
+
+	/**
+	 * @param event
+	 */
+	public AfterLoginEventDelegate(Event event) {
+		super(event);
+	}
+
+	/**
+	 * 
+	 * @return {@link LoginEventData}
+	 */
+	protected LoginEventData getLoginEventData() {
+		return EventHelper.getEventData(event);
+	}
+	
+	@AfterLogin
+	public final void onEvent() {
+		onAfterLogin(getLoginEventData());
+	}
+
+	/**
+	 * override this to handle after login event
+	 * @param data
+	 */
+	protected abstract void onAfterLogin(LoginEventData data);
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/BaseEventHandler.java

@@ -0,0 +1,157 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Method;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.adempiere.base.event.EventHelper;
+import org.osgi.service.event.Event;
+import org.osgi.service.event.EventHandler;
+
+/**
+ * 
+ * Base class for event handler that works with annotation driven event delegate.
+ * The implementation of event delegate doesn't have to be thread safe as a new instance of delegate is created for each event call.
+ * @author hengsin
+ *
+ */
+public abstract class BaseEventHandler implements EventHandler {
+
+	//event topic to method mapping
+	protected final Map<String, Method> eventTopicMap = new HashMap<String, Method>();
+	private String filter;
+
+	/**
+	 * 
+	 * @param delegateClass
+	 */
+	public BaseEventHandler(Class<? extends EventDelegate> delegateClass) {
+		filter = null;
+		createTopicMap(delegateClass);
+	}
+
+	/**
+	 * create event to topic to method mapping from annotations
+	 * @param delegateClass
+	 */
+	protected void createTopicMap(Class<?> delegateClass) {
+		Method[] methods = delegateClass.getMethods();
+		for(Method method : methods) {
+			if (method.isBridge())
+				continue;
+			Annotation[] annotations = method.getAnnotations();
+			for (Annotation annotation : annotations) {
+				if (annotation.annotationType().isAnnotationPresent(EventTopic.class)) {
+					String topic = annotation.annotationType().getAnnotation(EventTopic.class).topic();
+					if (!eventTopicMap.containsKey(topic)) {
+						method.setAccessible(true);
+						eventTopicMap.put(topic, method);
+					}
+				}
+			}
+		}		
+	}
+
+	/**
+	 * 
+	 * @return arrays of event topic
+	 */
+	public String[] getTopics() {
+		String[] topics = null;
+		if (!eventTopicMap.isEmpty())
+			topics = eventTopicMap.keySet().toArray(new String[0]);
+		return topics;
+	}
+
+	/**
+	 * 
+	 * @return event filter
+	 */
+	public String getFilter() {
+		return filter;
+	}
+	
+	/**
+	 * set event filter
+	 * @param filter
+	 */
+	public void setFilter(String filter) {
+		this.filter = filter;
+	}
+
+	/**
+	 * 
+	 * @param propertyName
+	 * @param value
+	 */
+	public void setEventPropertyFilter(String propertyName, String value) {
+		StringBuilder builder = new StringBuilder();
+		builder.append("(")
+			.append(propertyName)
+			.append("=")
+			.append(value)
+			.append(")");
+		setFilter(builder.toString());
+	}
+	
+	@Override
+	public void handleEvent(Event event) {
+		Method method = eventTopicMap.get(event.getTopic());
+		if (method != null) {
+			try {
+				EventDelegate delegate = newEventDelegate(event);
+				method.invoke(delegate);
+			} catch (RuntimeException e) {
+				EventHelper.addError(event, e);
+				throw e;
+			} catch (Exception e) {
+				Throwable t = e;
+				if (e.getCause() != null)
+					t = e.getCause();
+				EventHelper.addError(event, t);
+				if (t instanceof RuntimeException)
+					throw (RuntimeException)t;
+				else
+					throw new RuntimeException(t);
+			} catch (Error e) {
+				EventHelper.addError(event, e);
+				throw e;
+			} catch (Throwable e) {
+				EventHelper.addError(event, e);
+				throw new Error(e);
+			}
+		}
+	}
+
+	/**
+	 * create new instance of event delegate
+	 * @param event
+	 * @return {@link EventDelegate}
+	 */
+	protected abstract EventDelegate newEventDelegate(Event event);
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/BroadcastMsg.java

@@ -0,0 +1,45 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.BROADCAST_MESSAGE)
+/**
+ * 
+ * @author hengsin
+ *
+ */
+public @interface BroadcastMsg {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/EventDelegate.java

@@ -0,0 +1,56 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations;
+
+import org.osgi.service.event.Event;
+
+/**
+ * 
+ * Annotation driven event delegate base class that works together with {@link BaseEventHandler}.
+ * Subclass implementation doesn't have to be thread safe as event delegate is create and throw away for each event call.
+ * @author hengsin
+ *
+ */
+public class EventDelegate {
+
+	protected Event event;
+
+	/**
+	 * 
+	 * @param event
+	 */
+	public EventDelegate(Event event) {
+		this.event = event;
+	}
+
+	/**
+	 * 
+	 * @return {@link Event}
+	 */
+	protected Event getEvent() {
+		return event;
+	}
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/EventTopic.java

@@ -0,0 +1,43 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations;
+
+import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+@Retention(RUNTIME)
+@Target({ METHOD, ANNOTATION_TYPE })
+/**
+ * 
+ * @author hengsin
+ *
+ */
+public @interface EventTopic {
+	String topic();
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/ModelEventDelegate.java

@@ -0,0 +1,58 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations;
+
+import org.compiere.model.PO;
+import org.osgi.service.event.Event;
+
+/**
+ * 
+ * event delegate for PO related event (po_before_change, doc_before_complete, etc)
+ * @author hengsin
+ *
+ * @param <T>
+ */
+public class ModelEventDelegate<T extends PO> extends EventDelegate {
+
+	private T model;
+	
+	/**
+	 * 
+	 * @param po
+	 * @param event
+	 */
+	public ModelEventDelegate(T po, Event event) {
+		super(event);
+		this.model = po;
+	}
+
+	/**
+	 * 
+	 * @return po model (mbpartner, morder, etc)
+	 */
+	protected T getModel() {
+		return model;
+	}
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/ModelEventHandler.java

@@ -0,0 +1,90 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations;
+
+import java.lang.reflect.Field;
+import java.util.function.BiFunction;
+
+import org.adempiere.base.event.EventHelper;
+import org.adempiere.base.event.EventManager;
+import org.compiere.model.PO;
+import org.osgi.service.event.Event;
+
+/**
+ * 
+ * Event handler for PO related events (po_before_change, doc_before_complete, etc).
+ * Delegate to {@link ModelEventDelegate} instance created for each event call
+ * @author hengsin
+ * 
+ */
+public final class ModelEventHandler<T extends PO> extends BaseEventHandler {
+
+	private Class<T> modelClassType;
+	private String tableName;
+	private BiFunction<T, Event, ? extends ModelEventDelegate<T>> supplier;
+	
+	/**
+	 * @param modelClassType
+	 */
+	public ModelEventHandler(Class<T> modelClassType, Class<? extends ModelEventDelegate<T>> delegateClass, 
+			BiFunction<T, Event, ? extends ModelEventDelegate<T>> supplier) {
+		super(delegateClass);
+		this.supplier = supplier;
+		this.modelClassType = modelClassType;
+		findTableName();
+	}
+
+	private void findTableName() {
+		try {
+			Field field = modelClassType.getField("Table_Name");
+			this.tableName = (String) field.get(null);
+			setEventPropertyFilter(EventManager.TABLE_NAME_PROPERTY, tableName);
+		} catch (Exception e) { 
+			if (e instanceof RuntimeException)
+				throw (RuntimeException)e;
+			else
+				throw new RuntimeException(e);
+		}
+	}
+
+	@Override
+	public void handleEvent(Event event) {
+		PO po = EventHelper.getPO(event);		
+		if (po == null || modelClassType == null)
+			return;
+		
+		if (!modelClassType.isAssignableFrom(po.getClass()))
+			return;
+		
+		super.handleEvent(event);
+	}
+
+	@SuppressWarnings("unchecked")
+	@Override
+	protected EventDelegate newEventDelegate(Event event) {
+		PO po = EventHelper.getPO(event);
+		return supplier.apply((T)po, event);
+	}	
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/RequestSendEMail.java

@@ -0,0 +1,45 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.REQUEST_SEND_EMAIL)
+/**
+ * 
+ * @author hengsin
+ *
+ */
+public @interface RequestSendEMail {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/RequestSendEmailEventDelegate.java

@@ -0,0 +1,64 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations;
+
+import org.adempiere.base.event.EventHelper;
+import org.adempiere.base.event.RequestSendEMailEventData;
+import org.osgi.service.event.Event;
+
+/**
+ * 
+ * @author hengsin
+ *
+ */
+public abstract class RequestSendEmailEventDelegate extends EventDelegate {
+
+	/**
+	 * 
+	 * @param event
+	 */
+	public RequestSendEmailEventDelegate(Event event) {
+		super(event);
+	}
+
+	/**
+	 * 
+	 * @return {@link RequestSendEMailEventData}
+	 */
+	protected RequestSendEMailEventData getEventData() {
+		return EventHelper.getEventData(event);
+	}
+	
+	@RequestSendEMail
+	public final void onEvent() {
+		onRequestSendEmail(getEventData());
+	}
+
+	/**
+	 * Override this to handle event
+	 * @param requestSendEMailEventData 
+	 */
+	protected abstract void onRequestSendEmail(RequestSendEMailEventData requestSendEMailEventData);
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/SimpleEventHandler.java

@@ -0,0 +1,55 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations;
+
+import java.util.function.Function;
+
+import org.osgi.service.event.Event;
+
+/**
+ * 
+ * Event handler that delegate to {@link EventDelegate} instance (create for each event call)
+ * @author hengsin
+ *
+ */
+public final class SimpleEventHandler extends BaseEventHandler {
+
+	private Function<Event, ? extends EventDelegate> supplier;
+	
+	/**
+	 * 
+	 * @param delegateClass
+	 * @param supplier
+	 */
+	public SimpleEventHandler(Class<? extends EventDelegate> delegateClass, Function<Event, ? extends EventDelegate> supplier) {
+		super(delegateClass);
+		this.supplier = supplier;
+	}
+
+	@Override
+	protected EventDelegate newEventDelegate(Event event) {
+		return supplier.apply(event);
+	}	
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/AfterClose.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_AFTER_CLOSE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterClose {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/AfterComplete.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_AFTER_COMPLETE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterComplete {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/AfterPost.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_AFTER_POST)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterPost {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/AfterPrepare.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_AFTER_PREPARE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterPrepare {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/AfterReactivate.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_AFTER_REACTIVATE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterReactivate {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/AfterReverseAccrual.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_AFTER_REVERSEACCRUAL)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterReverseAccrual {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/AfterReverseCorrect.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_AFTER_REVERSECORRECT)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterReverseCorrect {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/AfterVoid.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_AFTER_VOID)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterVoid {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/BeforeClose.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_BEFORE_CLOSE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface BeforeClose {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/BeforeComplete.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_BEFORE_COMPLETE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface BeforeComplete {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/BeforePost.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_BEFORE_POST)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface BeforePost {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/BeforePrepare.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_BEFORE_PREPARE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface BeforePrepare {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/BeforeReactivate.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_BEFORE_REACTIVATE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface BeforeReactivate {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/BeforeReverseAccrual.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_BEFORE_REVERSEACCRUAL)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface BeforeReverseAccrual {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/BeforeReverseCorrect.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_BEFORE_REVERSECORRECT)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface BeforeReverseCorrect {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/BeforeVoid.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOC_BEFORE_VOID)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface BeforeVoid {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/DocAction.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.DOCACTION)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface DocAction {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/FactsValidate.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.ACCT_FACTS_VALIDATE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface FactsValidate {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/doc/FactsValidateDelegate.java

@@ -0,0 +1,67 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.doc;
+
+import org.adempiere.base.event.EventHelper;
+import org.adempiere.base.event.FactsEventData;
+import org.adempiere.base.event.annotations.ModelEventDelegate;
+import org.compiere.model.PO;
+import org.osgi.service.event.Event;
+
+/**
+ * 
+ * @author hengsin
+ *
+ */
+public abstract class FactsValidateDelegate<T extends PO> extends ModelEventDelegate<T> {
+
+	/**
+	 * 
+	 * @param po
+	 * @param event
+	 */
+	public FactsValidateDelegate(T po, Event event) {
+		super(po, event);
+	}
+	
+	/**
+	 * 
+	 * @return {@link FactsEventData}
+	 */
+	protected FactsEventData getFactsEventData() {
+		return EventHelper.getEventData(event);
+	}
+	
+	@FactsValidate
+	public final void onEvent() {
+		onFactsValidate(getFactsEventData());
+	}
+
+	/**
+	 * override this to handle facts validate event
+	 * @param data
+	 */
+	protected abstract void onFactsValidate(FactsEventData data);
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/imp/AfterImport.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.imp;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.IMPORT_AFTER_IMPORT)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterImport {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/imp/AfterValidate.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.imp;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.IMPORT_AFTER_VALIDATE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterValidate {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/imp/BeforeImport.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.imp;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.IMPORT_BEFORE_IMPORT)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface BeforeImport {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/imp/BeforeValidate.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.imp;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.IMPORT_BEFORE_VALIDATE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface BeforeValidate {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/imp/ImportEventDelegate.java

@@ -0,0 +1,53 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.imp;
+
+import org.adempiere.base.event.EventHelper;
+import org.adempiere.base.event.ImportEventData;
+import org.adempiere.base.event.annotations.EventDelegate;
+import org.osgi.service.event.Event;
+
+/**
+ * 
+ * @author hengsin
+ *
+ */
+public class ImportEventDelegate extends EventDelegate {
+
+	/**
+	 * @param event
+	 */
+	public ImportEventDelegate(Event event) {
+		super(event);
+	}
+
+	/**
+	 * 
+	 * @return {@link ImportEventData}
+	 */
+	protected ImportEventData getImportEventData() {
+		return EventHelper.getEventData(event);
+	}
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/imp/ImportEventHandler.java

@@ -0,0 +1,61 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.imp;
+
+import java.util.function.Function;
+
+import org.adempiere.base.event.IEventManager;
+import org.adempiere.base.event.annotations.BaseEventHandler;
+import org.adempiere.base.event.annotations.EventDelegate;
+import org.compiere.util.Util;
+import org.osgi.service.event.Event;
+
+/**
+ * 
+ * @author hengsin
+ *
+ */
+public class ImportEventHandler extends BaseEventHandler {
+
+	private Function<Event, ? extends ImportEventDelegate> supplier;
+
+	/**
+	 * 
+	 * @param delegateClass
+	 * @param importTableName
+	 * @param supplier
+	 */
+	public ImportEventHandler(Class<? extends ImportEventDelegate> delegateClass, String importTableName, Function<Event, ? extends ImportEventDelegate> supplier) {
+		super(delegateClass);
+		this.supplier = supplier;
+		if (!Util.isEmpty(importTableName))
+			setEventPropertyFilter(IEventManager.IMPORT_TABLE_NAME_PROPERTY, importTableName);
+	}
+
+	@Override
+	protected EventDelegate newEventDelegate(Event event) {
+		return supplier.apply(event);
+	}
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/po/AfterChange.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.po;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic =  IEventTopics.PO_AFTER_CHANGE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterChange {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/po/AfterChangeReplication.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.po;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.PO_AFTER_CHANGE_REPLICATION)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterChangeReplication {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/po/AfterDelete.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.po;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.PO_AFTER_DELETE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterDelete {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/po/AfterNew.java

@@ -0,0 +1,45 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.po;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.PO_AFTER_NEW)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterNew {
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/po/AfterNewReplication.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.po;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.PO_AFTER_NEW_REPLICATION)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterNewReplication {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/po/BeforeChange.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.po;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic =  IEventTopics.PO_BEFORE_CHANGE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface BeforeChange {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/po/BeforeDelete.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.po;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.PO_BEFORE_DELETE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface BeforeDelete {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/po/BeforeDeleteReplication.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.po;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.PO_BEFORE_DELETE_REPLICATION)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface BeforeDeleteReplication {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/po/BeforeNew.java

@@ -0,0 +1,45 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.po;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+@EventTopic(topic = IEventTopics.PO_BEFORE_NEW)
+public @interface BeforeNew {
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/po/PostCreate.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.po;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.PO_POST_CREATE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface PostCreate {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/po/PostDelete.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.po;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.PO_POST_DELETE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface PostDelete {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/po/PostUpdate.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.po;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.PO_POST_UPADTE)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface PostUpdate {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/process/AfterProcess.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.process;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.AFTER_PROCESS)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface AfterProcess {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/process/BeforeProcess.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.process;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.BEFORE_PROCESS)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface BeforeProcess {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/process/PostProcess.java

@@ -0,0 +1,46 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.process;
+
+import static java.lang.annotation.ElementType.METHOD;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.Target;
+
+import org.adempiere.base.event.IEventTopics;
+import org.adempiere.base.event.annotations.EventTopic;
+
+@Retention(RUNTIME)
+@Target(METHOD)
+@EventTopic(topic = IEventTopics.POST_PROCESS)
+/**
+ * 
+ * @author hengsin
+ * 
+ */
+public @interface PostProcess {
+
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/process/ProcessEventDelegate.java

@@ -0,0 +1,50 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.process;
+
+import org.adempiere.base.event.EventHelper;
+import org.adempiere.base.event.annotations.EventDelegate;
+import org.compiere.process.ProcessInfo;
+import org.osgi.service.event.Event;
+
+/**
+ * 
+ * @author hengsin
+ *
+ */
+public class ProcessEventDelegate extends EventDelegate {
+
+	public ProcessEventDelegate(Event event) {
+		super(event);
+	}
+
+	/**
+	 * 
+	 * @return {@link ProcessInfo}
+	 */
+	protected ProcessInfo getProcessInfo() {
+		return EventHelper.getEventData(event);
+	}	
+}

org.adempiere.base/src/org/adempiere/base/event/annotations/process/ProcessEventHandler.java

@@ -0,0 +1,63 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.adempiere.base.event.annotations.process;
+
+import java.util.function.Function;
+
+import org.adempiere.base.event.IEventManager;
+import org.adempiere.base.event.annotations.BaseEventHandler;
+import org.adempiere.base.event.annotations.EventDelegate;
+import org.compiere.util.Util;
+import org.osgi.service.event.Event;
+
+/**
+ * 
+ * @author hengsin
+ *
+ */
+public class ProcessEventHandler extends BaseEventHandler {
+
+	private Function<Event, ? extends ProcessEventDelegate> supplier;
+	
+	/**
+	 * 
+	 * @param delegateClass
+	 * @param processUUID filter by process uuid (null for all process)
+	 * @param supplier
+	 */
+	public ProcessEventHandler(Class<? extends ProcessEventDelegate> delegateClass, String processUUID, Function<Event, ? extends ProcessEventDelegate> supplier) {
+		super(delegateClass);
+		this.supplier = supplier;
+		if (!Util.isEmpty(processUUID)) {
+			setEventPropertyFilter(IEventManager.PROCESS_UID_PROPERTY, processUUID);
+		}
+	}
+
+	@Override
+	protected EventDelegate newEventDelegate(Event event) {
+		return supplier.apply(event);
+	}
+
+}

org.adempiere.base/src/org/compiere/model/ModelValidationEngine.java

@@ -407,7 +407,7 @@ public class ModelValidationEngine
 
 		//now process osgi event handlers
 		Event event = EventManager.newEvent(ModelValidator.tableEventTopics[changeType],
-				new EventProperty(EventManager.EVENT_DATA, po), new EventProperty("tableName", po.get_TableName()));
+				new EventProperty(EventManager.EVENT_DATA, po), new EventProperty(EventManager.TABLE_NAME_PROPERTY, po.get_TableName()));
 		EventManager.getInstance().sendEvent(event);
 		@SuppressWarnings("unchecked")
 		List<String> errors = (List<String>) event.getProperty(IEventManager.EVENT_ERROR_MESSAGES);
@@ -574,7 +574,7 @@ public class ModelValidationEngine
 
 		//now process osgi event handlers
 		Event event = EventManager.newEvent(ModelValidator.documentEventTopics[docTiming],
-				new EventProperty(EventManager.EVENT_DATA, po), new EventProperty("tableName", po.get_TableName()));
+				new EventProperty(EventManager.EVENT_DATA, po), new EventProperty(EventManager.TABLE_NAME_PROPERTY, po.get_TableName()));
 		EventManager.getInstance().sendEvent(event);
 		@SuppressWarnings("unchecked")
 		List<String> errors = (List<String>) event.getProperty(IEventManager.EVENT_ERROR_MESSAGES);
@@ -724,7 +724,7 @@ public class ModelValidationEngine
 		//process osgi event handlers
 		FactsEventData eventData = new FactsEventData(schema, facts, po);
 		Event event = EventManager.newEvent(IEventTopics.ACCT_FACTS_VALIDATE,
-				new EventProperty(EventManager.EVENT_DATA, eventData), new EventProperty("tableName", po.get_TableName()));
+				new EventProperty(EventManager.EVENT_DATA, eventData), new EventProperty(EventManager.TABLE_NAME_PROPERTY, po.get_TableName()));
 		EventManager.getInstance().sendEvent(event);
 		@SuppressWarnings("unchecked")
 		List<String> errors = (List<String>) event.getProperty(IEventManager.EVENT_ERROR_MESSAGES);
@@ -802,7 +802,8 @@ public class ModelValidationEngine
 			topic = IEventTopics.IMPORT_BEFORE_IMPORT;
 		else if (timing == ImportValidator.TIMING_BEFORE_VALIDATE)
 			topic = IEventTopics.IMPORT_BEFORE_VALIDATE;
-		Event event = EventManager.newEvent(topic, new EventProperty(EventManager.EVENT_DATA, eventData), new EventProperty("importTableName", process.getImportTableName()));
+		Event event = EventManager.newEvent(topic, new EventProperty(EventManager.EVENT_DATA, eventData), 
+				new EventProperty(EventManager.IMPORT_TABLE_NAME_PROPERTY, process.getImportTableName()));
 		EventManager.getInstance().sendEvent(event);
 	}
 

org.adempiere.base/src/org/compiere/process/DocumentEngine.java

@@ -1254,7 +1254,7 @@ public class DocumentEngine implements DocAction
 		DocActionEventData eventData = new DocActionEventData(docStatus, processing, orderType, isSOTrx, AD_Table_ID, docActionsArray, optionsArray, indexObj, po);
 		Event event = EventManager.newEvent(IEventTopics.DOCACTION,
 				new EventProperty(EventManager.EVENT_DATA, eventData),
-				new EventProperty("tableName", po.get_TableName()));
+				new EventProperty(EventManager.TABLE_NAME_PROPERTY, po.get_TableName()));
 		EventManager.getInstance().sendEvent(event);
 		index = indexObj.get();
 		for (int i = 0; i < optionsArray.size(); i++)

org.adempiere.base/src/org/compiere/process/SvrProcess.java

@@ -298,9 +298,9 @@ public abstract class SvrProcess implements ProcessCall
 	private Event sendProcessEvent(String topic) {
 		Event event = EventManager.newEvent(topic,
 				new EventProperty(EventManager.EVENT_DATA, m_pi),
-				new EventProperty("processUUID", m_pi.getAD_Process_UU()),
+				new EventProperty(EventManager.PROCESS_UID_PROPERTY, m_pi.getAD_Process_UU()),
-				new EventProperty("className", m_pi.getClassName()),
+				new EventProperty(EventManager.CLASS_NAME_PROPERTY, m_pi.getClassName()),
-				new EventProperty("processClassName", this.getClass().getName()));
+				new EventProperty(EventManager.PROCESS_CLASS_NAME_PROPERTY, this.getClass().getName()));
 		EventManager.getInstance().sendEvent(event);
 		return event;
 	}

org.idempiere.test/.project

@@ -25,6 +25,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ds.core.builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.pde.PluginNature</nature>

org.idempiere.test/.settings/org.eclipse.pde.ds.annotations.prefs

@@ -0,0 +1,8 @@
+classpath=true
+dsVersion=V1_3
+eclipse.preferences.version=1
+enabled=true
+generateBundleActivationPolicyLazy=true
+path=OSGI-INF
+validationErrorLevel=error
+validationErrorLevel.missingImplicitUnbindMethod=error

org.idempiere.test/META-INF/MANIFEST.MF

@@ -17,7 +17,9 @@ Import-Package: org.junit.jupiter.api;version="5.6.0",
  org.junit.jupiter.params.converter;version="5.6.0",
  org.junit.jupiter.params.provider;version="5.6.0",
  org.junit.jupiter.params.support;version="5.6.0",
- org.osgi.framework;version="1.9.0"
+ org.osgi.framework;version="1.9.0",
+ org.osgi.service.component.annotations;version="1.3.0",
+ org.osgi.service.event;version="1.4.0"
 Require-Bundle: org.adempiere.base;bundle-version="8.2.0",
  org.adempiere.base.callout;bundle-version="8.2.0",
  org.adempiere.base.process;bundle-version="8.2.0",
@@ -25,3 +27,5 @@ Require-Bundle: org.adempiere.base;bundle-version="8.2.0",
 Bundle-ActivationPolicy: lazy
 Bundle-Activator: org.idempiere.test.TestActivator
 Bundle-RequiredExecutionEnvironment: JavaSE-11
+Export-Package: org.idempiere.test
+Service-Component: OSGI-INF/org.idempiere.test.event.MyComponent.xml

org.idempiere.test/OSGI-INF/org.idempiere.test.event.MyComponent.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.3.0" immediate="true" name="org.idempiere.test.event.MyComponent">
+   <reference bind="bindService" cardinality="1..1" field="eventManager" interface="org.adempiere.base.event.IEventManager" name="eventManager" unbind="unbindService"/>
+   <implementation class="org.idempiere.test.event.MyComponent"/>
+</scr:component>

org.idempiere.test/build.properties

@@ -1,4 +1,5 @@
 source.. = src/
 output.. = target/classes/
 bin.includes = META-INF/,\
-               .
+               .,\
+               OSGI-INF/org.idempiere.test.event.MyComponent.xml

org.idempiere.test/src/org/idempiere/test/event/EventHandlerTest.java

@@ -0,0 +1,395 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.idempiere.test.event;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
+
+import java.math.BigDecimal;
+import java.sql.Timestamp;
+
+import org.adempiere.base.Core;
+import org.adempiere.base.event.FactsEventData;
+import org.adempiere.base.event.annotations.AfterLogin;
+import org.adempiere.base.event.annotations.EventDelegate;
+import org.adempiere.base.event.annotations.ModelEventDelegate;
+import org.adempiere.base.event.annotations.ModelEventHandler;
+import org.adempiere.base.event.annotations.SimpleEventHandler;
+import org.adempiere.base.event.annotations.doc.BeforeComplete;
+import org.adempiere.base.event.annotations.doc.FactsValidateDelegate;
+import org.adempiere.base.event.annotations.imp.AfterImport;
+import org.adempiere.base.event.annotations.imp.ImportEventDelegate;
+import org.adempiere.base.event.annotations.imp.ImportEventHandler;
+import org.adempiere.base.event.annotations.po.BeforeNew;
+import org.adempiere.base.event.annotations.process.AfterProcess;
+import org.adempiere.base.event.annotations.process.ProcessEventDelegate;
+import org.adempiere.base.event.annotations.process.ProcessEventHandler;
+import org.adempiere.model.ImportValidator;
+import org.compiere.model.MBPartner;
+import org.compiere.model.MInOut;
+import org.compiere.model.MInOutLine;
+import org.compiere.model.MOrder;
+import org.compiere.model.MOrderLine;
+import org.compiere.model.MOrg;
+import org.compiere.model.MProcess;
+import org.compiere.model.MProduct;
+import org.compiere.model.ModelValidationEngine;
+import org.compiere.model.X_I_BPartner;
+import org.compiere.model.X_I_Product;
+import org.compiere.process.DocAction;
+import org.compiere.process.DocumentEngine;
+import org.compiere.process.ImportBPartner;
+import org.compiere.process.ImportProduct;
+import org.compiere.process.ProcessInfo;
+import org.compiere.process.ServerProcessCtl;
+import org.compiere.util.Env;
+import org.compiere.util.KeyNamePair;
+import org.compiere.util.Login;
+import org.compiere.util.TimeUtil;
+import org.compiere.util.Util;
+import org.compiere.wf.MWorkflow;
+import org.idempiere.test.AbstractTestCase;
+import org.junit.jupiter.api.Order;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestMethodOrder;
+import org.junit.jupiter.api.MethodOrderer.OrderAnnotation;
+import org.osgi.service.event.Event;
+
+@TestMethodOrder(OrderAnnotation.class)
+/**
+ * 
+ * @author hengsin
+ *
+ */
+public class EventHandlerTest extends AbstractTestCase {
+
+	private final static int BP_JOE_BLOCK = 118;
+	private static final int PRODUCT_AZALEA = 128;
+	
+	public EventHandlerTest() {
+	}
+
+
+	@Test
+	@Order(1)
+	public void testModelEventHandler() {
+		//test1 - activator approach 
+		ModelEventHandler<MBPartner> handler = new ModelEventHandler<MBPartner>(MBPartner.class, MyBPBeforeNewDelegate.class, (bp, event) -> new MyBPBeforeNewDelegate(bp, event));
+		Core.getEventManager().register(handler);
+		
+		MBPartner bpartner = new MBPartner(Env.getCtx(), 0, getTrxName());
+		String name  = "BP_"+System.currentTimeMillis();
+		bpartner.setName(name);
+		bpartner.setC_BP_Group_ID(103);
+		bpartner.saveEx();
+		
+		String test = Env.getContext(Env.getCtx(), MyBPBeforeNewDelegate.class.getName());
+		assertTrue(bpartner.getName().equals(test), "MyBPBeforeNewDelegate not called");
+		
+		//test2 - MyComponent.MyBpBeforeChangeDelegate using osgi component mechanism
+		bpartner.setDescription("");
+		bpartner.saveEx();
+		
+		test = Env.getContext(Env.getCtx(), MyComponent.MyBpBeforeChangeDelegate.class.getName());
+		assertTrue(bpartner.toString().equals(test), "MyComponent.MyBpBeforeChangeDelegate not called");
+	}
+	
+	@Test
+	@Order(2)
+	public void testDocumentEventHandler() {
+		ModelEventHandler<MOrder> handler = new ModelEventHandler<MOrder>(MOrder.class, MyOrderBeforeCompleteDelegate.class, 
+				(po, event) -> new MyOrderBeforeCompleteDelegate(po, event));
+		Core.getEventManager().register(handler);
+		
+		MOrder order = new MOrder(Env.getCtx(), 0, getTrxName());
+		//Joe Block
+		order.setBPartner(MBPartner.get(Env.getCtx(), BP_JOE_BLOCK));
+		order.setC_DocTypeTarget_ID(MOrder.DocSubTypeSO_Standard);
+		order.setDeliveryRule(MOrder.DELIVERYRULE_CompleteOrder);
+		order.setDocStatus(DocAction.STATUS_Drafted);
+		order.setDocAction(DocAction.ACTION_Complete);
+		Timestamp today = TimeUtil.getDay(System.currentTimeMillis());
+		order.setDateOrdered(today);
+		order.setDatePromised(today);
+		order.setDescription(null);
+		order.saveEx();
+		
+		MOrderLine line1 = new MOrderLine(order);
+		line1.setLine(10);
+		//Azalea Bush
+		line1.setProduct(MProduct.get(Env.getCtx(), PRODUCT_AZALEA));
+		line1.setQty(new BigDecimal("1"));
+		line1.setDatePromised(today);
+		line1.saveEx();		
+		
+		ProcessInfo info = MWorkflow.runDocumentActionWorkflow(order, DocAction.ACTION_Complete);
+		assertFalse(info.isError(), info.getSummary());
+		order.load(getTrxName());		
+		assertEquals(DocAction.STATUS_Completed, order.getDocStatus());
+		line1.load(getTrxName());
+		assertEquals(1, line1.getQtyReserved().intValue());
+		
+		Core.getEventManager().unregister(handler);
+		
+		String test = Env.getContext(Env.getCtx(), MyOrderBeforeCompleteDelegate.class.getName());
+		assertEquals(order.toString(), test, "MyOrderBeforeCompleteDelegate not called");
+	}
+	
+	@Test
+	@Order(3)
+	public void testDocumentEventHandlerException() {
+		ModelEventHandler<MOrder> handler = new ModelEventHandler<MOrder>(MOrder.class, MyOrderBeforeCompleteDelegate.class, 
+				(po, event) -> new MyOrderBeforeCompleteDelegate(po, event));
+		Core.getEventManager().register(handler);
+		
+		MOrder order = new MOrder(Env.getCtx(), 0, getTrxName());
+		//Joe Block
+		order.setBPartner(MBPartner.get(Env.getCtx(), BP_JOE_BLOCK));
+		order.setC_DocTypeTarget_ID(MOrder.DocSubTypeSO_Standard);
+		order.setDeliveryRule(MOrder.DELIVERYRULE_CompleteOrder);
+		order.setDocStatus(DocAction.STATUS_Drafted);
+		order.setDocAction(DocAction.ACTION_Complete);
+		Timestamp today = TimeUtil.getDay(System.currentTimeMillis());
+		order.setDateOrdered(today);
+		order.setDatePromised(today);
+		order.setDescription(MyOrderBeforeCompleteDelegate.class.getName());
+		order.saveEx();
+		
+		MOrderLine line1 = new MOrderLine(order);
+		line1.setLine(10);
+		//Azalea Bush
+		line1.setProduct(MProduct.get(Env.getCtx(), PRODUCT_AZALEA));
+		line1.setQty(new BigDecimal("1"));
+		line1.setDatePromised(today);
+		line1.saveEx();		
+		
+		ProcessInfo info = MWorkflow.runDocumentActionWorkflow(order, DocAction.ACTION_Complete);
+		assertTrue(info.isError(), "DocAction Complete doesn't fail as expected");
+		order.load(getTrxName());		
+		assertEquals(DocAction.STATUS_Invalid, order.getDocStatus(), "DocStatus Expected=Invalid. DocStatus Actual="+order.getDocStatus());
+		line1.load(getTrxName());
+		assertEquals(0, line1.getQtyReserved().intValue());
+		assertTrue(info.getSummary() != null && info.getSummary().contains("Test Runtime Exception"), "Error message not as expected=" + info.getSummary());
+	}
+	
+	@Test
+	@Order(4)
+	public void testAfterLogin() {
+		SimpleEventHandler handler = new SimpleEventHandler(MyAfterLoginDelegate.class, (event) -> new MyAfterLoginDelegate(event));
+		Core.getEventManager().register(handler);
+		
+		KeyNamePair org = new KeyNamePair(getAD_Org_ID(), MOrg.get(getAD_Org_ID()).getName());
+		Login login = new Login(Env.getCtx());
+		login.validateLogin(org);
+		
+		assertTrue("y".equalsIgnoreCase(Env.getContext(Env.getCtx(), MyAfterLoginDelegate.class.getName())), 
+				"MyAfterLoginDelegate not call. context="+Env.getContext(Env.getCtx(), MyAfterLoginDelegate.class.getName()));
+	}
+	
+	@Test
+	@Order(5)
+	public void testAfterProcess() {
+		int Verify_BOM=136;
+		int Patio_Chair=133;
+				
+		ProcessEventHandler handler = new ProcessEventHandler(MyAfterProcessDelegate.class, MProcess.get(Verify_BOM).getAD_Process_UU(), (event) -> new MyAfterProcessDelegate(event));
+		Core.getEventManager().register(handler);
+		
+		MProcess process = MProcess.get(Env.getCtx(), Verify_BOM);
+		ProcessInfo pi = new ProcessInfo(process.getName(), process.get_ID());
+		pi.setAD_Client_ID(getAD_Client_ID());
+		pi.setAD_User_ID(getAD_User_ID());
+		pi.setRecord_ID(Patio_Chair);
+		pi.setTransactionName(getTrxName());
+		
+		ServerProcessCtl.process(pi, getTrx());
+		if (pi.isError()) {
+			fail("Error running Verify BOM process" + (Util.isEmpty(pi.getSummary()) ? "" : " : "+pi.getSummary()));
+			return;
+		}
+		
+		assertTrue(pi.getTitle() != null && pi.getTitle().contains(MyAfterProcessDelegate.class.getName()), "MyAfterProcessDelegate not call. Title="+pi.getTitle());
+	}
+	
+	@Test
+	@Order(6)
+	public void testFactValidate()
+	{
+		ModelEventHandler<MInOut> handler = new ModelEventHandler<MInOut>(MInOut.class, MyFactValidateDelegate.class, 
+				(po, event) -> new MyFactValidateDelegate(po, event));
+		Core.getEventManager().register(handler);
+		
+		MOrder order = new MOrder(Env.getCtx(), 0, getTrxName());
+		//Joe Block
+		order.setBPartner(MBPartner.get(Env.getCtx(), BP_JOE_BLOCK));
+		order.setC_DocTypeTarget_ID(MOrder.DocSubTypeSO_Standard);
+		order.setDeliveryRule(MOrder.DELIVERYRULE_CompleteOrder);
+		order.setDocStatus(DocAction.STATUS_Drafted);
+		order.setDocAction(DocAction.ACTION_Complete);
+		Timestamp today = TimeUtil.getDay(System.currentTimeMillis());
+		order.setDateOrdered(today);
+		order.setDatePromised(today);
+		order.saveEx();
+		
+		MOrderLine line1 = new MOrderLine(order);
+		line1.setLine(10);
+		//Azalea Bush
+		line1.setProduct(MProduct.get(Env.getCtx(), PRODUCT_AZALEA));
+		line1.setQty(new BigDecimal("1"));
+		line1.setDatePromised(today);
+		line1.saveEx();		
+		
+		ProcessInfo info = MWorkflow.runDocumentActionWorkflow(order, DocAction.ACTION_Complete);
+		assertFalse(info.isError());
+		order.load(getTrxName());		
+		assertEquals(DocAction.STATUS_Completed, order.getDocStatus());
+		line1.load(getTrxName());
+		assertEquals(1, line1.getQtyReserved().intValue());
+		
+		MInOut shipment = new MInOut(order, 120, order.getDateOrdered());
+		shipment.setDocStatus(DocAction.STATUS_Drafted);
+		shipment.setDocAction(DocAction.ACTION_Complete);
+		shipment.saveEx();
+		
+		MInOutLine shipmentLine = new MInOutLine(shipment);
+		shipmentLine.setOrderLine(line1, 0, new BigDecimal("1"));
+		shipmentLine.setQty(new BigDecimal("1"));
+		shipmentLine.saveEx();
+		
+		info = MWorkflow.runDocumentActionWorkflow(shipment, DocAction.ACTION_Complete);
+		assertFalse(info.isError());
+		shipment.load(getTrxName());
+		assertEquals(DocAction.STATUS_Completed, shipment.getDocStatus());
+						
+		line1.load(getTrxName());
+		assertEquals(0, line1.getQtyReserved().intValue());
+		
+		if (!shipment.isPosted()) {
+			String error = DocumentEngine.postImmediate(Env.getCtx(), shipment.getAD_Client_ID(), MInOut.Table_ID, shipment.get_ID(), false, getTrxName());
+			assertTrue(error == null);
+		}
+		
+		assertTrue("y".equalsIgnoreCase(Env.getContext(Env.getCtx(), MyFactValidateDelegate.class.getName())), 
+				"MyFactValidateDelegate not call. context="+Env.getContext(Env.getCtx(), MyFactValidateDelegate.class.getName()));
+	}
+	
+	@Test
+	@Order(7)
+	public void testAfterImport() {
+		ImportEventHandler handler = new ImportEventHandler(MyAfterImportDelegate.class, X_I_BPartner.Table_Name, (event) -> new MyAfterImportDelegate(event));
+		Core.getEventManager().register(handler);
+		
+		ImportProduct ip = new ImportProduct();
+		ModelValidationEngine.get().fireImportValidate(ip, new X_I_Product(Env.getCtx(), 0, getTrxName()), new MProduct(Env.getCtx(), 0, getTrxName()), ImportValidator.TIMING_AFTER_IMPORT);
+		assertTrue(Util.isEmpty(Env.getContext(Env.getCtx(), MyAfterImportDelegate.class.getName())), 
+				"MyAfterImportDelegate call for different import table name. context="+Env.getContext(Env.getCtx(), MyAfterImportDelegate.class.getName()));
+		
+		ImportBPartner ibp = new ImportBPartner();
+		ModelValidationEngine.get().fireImportValidate(ibp, new X_I_BPartner(Env.getCtx(), 0, getTrxName()), new MBPartner(Env.getCtx(), 0, getTrxName()), ImportValidator.TIMING_AFTER_IMPORT);
+		
+		assertTrue("y".equalsIgnoreCase(Env.getContext(Env.getCtx(), MyAfterImportDelegate.class.getName())), 
+				"MyAfterImportDelegate not call. context="+Env.getContext(Env.getCtx(), MyAfterImportDelegate.class.getName()));		
+	}
+	
+	private final static class MyBPBeforeNewDelegate extends ModelEventDelegate<MBPartner> {
+
+		public MyBPBeforeNewDelegate(MBPartner bp, Event event) {
+			super(bp, event);
+		}
+
+		@BeforeNew
+		public void beforeNew() {
+			Env.setContext(Env.getCtx(), getClass().getName(), getModel().getName());
+		}
+	}
+	
+	private final static class MyOrderBeforeCompleteDelegate extends ModelEventDelegate<MOrder>  {
+
+		public MyOrderBeforeCompleteDelegate(MOrder po, Event event) {
+			super(po, event);
+		}
+
+		@BeforeComplete
+		public void beforeComplete() {
+			if (getClass().getName().equals(getModel().getDescription())) {
+				throw new RuntimeException("Test Runtime Exception");
+			} else {
+				Env.setContext(Env.getCtx(), getClass().getName(), getModel().toString());
+			}
+		}
+	}
+	
+	private final static class MyAfterLoginDelegate extends EventDelegate {
+
+		public MyAfterLoginDelegate(Event event) {
+			super(event);
+		}
+
+		@AfterLogin
+		public void afterLogin() {
+			Env.setContext(Env.getCtx(), getClass().getName(), true);
+		}
+	}
+	
+	private final static class MyAfterProcessDelegate extends ProcessEventDelegate {
+
+		public MyAfterProcessDelegate(Event event) {
+			super(event);
+		}
+
+		@AfterProcess
+		public void afterProcess() {
+			ProcessInfo pi = getProcessInfo();
+			pi.setTitle(getClass().getName());
+		}
+	}
+	
+	private final static class MyFactValidateDelegate extends FactsValidateDelegate<MInOut> {
+
+		public MyFactValidateDelegate(MInOut po, Event event) {
+			super(po, event);
+		}
+
+		@Override
+		protected void onFactsValidate(FactsEventData data) {
+			Env.setContext(Env.getCtx(), this.getClass().getName(), true);
+		}
+		
+	}
+	
+	private final static class MyAfterImportDelegate extends ImportEventDelegate {
+
+		public MyAfterImportDelegate(Event event) {
+			super(event);
+		}
+		
+		@AfterImport
+		public void afterImport() {
+			Env.setContext(Env.getCtx(), getClass().getName(), true);
+		}
+	}
+}

org.idempiere.test/src/org/idempiere/test/event/MyComponent.java

@@ -0,0 +1,83 @@
+/***********************************************************************
+ * This file is part of iDempiere ERP Open Source                      *
+ * http://www.idempiere.org                                            *
+ *                                                                     *
+ * Copyright (C) Contributors                                          *
+ *                                                                     *
+ * This program is free software; you can redistribute it and/or       *
+ * modify it under the terms of the GNU General Public License         *
+ * as published by the Free Software Foundation; either version 2      *
+ * of the License, or (at your option) any later version.              *
+ *                                                                     *
+ * This program is distributed in the hope that it will be useful,     *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of      *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the        *
+ * GNU General Public License for more details.                        *
+ *                                                                     *
+ * You should have received a copy of the GNU General Public License   *
+ * along with this program; if not, write to the Free Software         *
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,          *
+ * MA 02110-1301, USA.                                                 *
+ *                                                                     *
+ * Contributors:                                                       *
+ * - hengsin                         								   *
+ **********************************************************************/
+package org.idempiere.test.event;
+
+import org.adempiere.base.event.IEventManager;
+import org.adempiere.base.event.annotations.ModelEventDelegate;
+import org.adempiere.base.event.annotations.ModelEventHandler;
+import org.adempiere.base.event.annotations.po.BeforeChange;
+import org.compiere.model.MBPartner;
+import org.compiere.util.Env;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.event.Event;
+
+@Component(name = "org.idempiere.test.event.MyComponent", immediate = true)
+/**
+ * 
+ * @author hengsin
+ *
+ */
+public class MyComponent {
+
+	@Reference(service = IEventManager.class, bind = "bindService", unbind = "unbindService")
+	private IEventManager eventManager;
+	private ModelEventHandler<MBPartner> handler;
+	
+	public MyComponent() {
+	}
+
+	/**
+	 * 
+	 * @param eventManager
+	 */
+	public void bindService(IEventManager eventManager) {
+		this.eventManager = eventManager;
+		handler = new ModelEventHandler<MBPartner>(MBPartner.class, MyBpBeforeChangeDelegate.class, 
+				(po, event) -> new MyBpBeforeChangeDelegate(po, event));
+		eventManager.register(handler.getTopics(), handler.getFilter(), handler);
+	}
+	
+	/**
+	 * 
+	 * @param eventManager
+	 */
+	public void unbindService(IEventManager eventManager) {
+		if (eventManager != null && eventManager == this.eventManager && handler != null)
+			eventManager.unregister(handler);
+	}
+	
+	protected final static class MyBpBeforeChangeDelegate extends ModelEventDelegate<MBPartner> {
+
+		public MyBpBeforeChangeDelegate(MBPartner po, Event event) {
+			super(po, event);
+		}
+
+		@BeforeChange
+		public void beforeChange() {
+			Env.setContext(Env.getCtx(), getClass().getName(), getModel().toString());
+		}
+	}
+}