IDEMPIERE-5567 Support of UUID as Key (FHCA-4195) (#1976)

- Fix 2Pack to work with UUID based tables
- Implement ability for PackOut/PackIn multi ID columns

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

@@ -1152,7 +1152,7 @@ public class GridField
 			}
 			if (allValid)
 				return true;
-		} else if (getDisplayType() == DisplayType.ChosenMultipleSelectionTable || getDisplayType() == DisplayType.ChosenMultipleSelectionSearch) {
+		} else if (DisplayType.isMultiID(getDisplayType())) {
 			boolean allValid = true;
 			for (String vals : ((String)m_value).split(",")) {
 				Integer vali = Integer.valueOf(vals);

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

@@ -792,7 +792,9 @@ public class MColumn extends X_AD_Column implements ImmutablePOSupport
 		if (foreignTableMulti != null)
 			return foreignTableMulti;
 		int refid = getAD_Reference_ID();
-		if (DisplayType.ChosenMultipleSelectionTable == refid || DisplayType.ChosenMultipleSelectionSearch == refid) {
+		if (DisplayType.ChosenMultipleSelectionList == refid) {
+			foreignTableMulti = "AD_Ref_List";
+		} else if (DisplayType.ChosenMultipleSelectionTable == refid || DisplayType.ChosenMultipleSelectionSearch == refid) {
 			foreignTableMulti = DB.getSQLValueStringEx(get_TrxName(), sqlTableNameReference, getAD_Column_ID());
 		} else if (DisplayType.SingleSelectionGrid == refid || DisplayType.MultipleSelectionGrid == refid) {
 			foreignTableMulti = DB.getSQLValueStringEx(get_TrxName(), sqlTableNameSelectionGrid, getAD_Column_ID());

org.adempiere.base/src/org/compiere/util/DisplayType.java

@@ -548,7 +548,9 @@ public final class DisplayType
 			|| displayType == RadiogroupList
 			|| displayType == ChosenMultipleSelectionTable
 			|| displayType == ChosenMultipleSelectionSearch
-			|| displayType == ChosenMultipleSelectionList)
+			|| displayType == ChosenMultipleSelectionList
+			|| displayType == SingleSelectionGrid
+			|| displayType == MultipleSelectionGrid)
 			return true;
 		
 		//not custom type, don't have to check factory
@@ -638,11 +640,22 @@ public final class DisplayType
 	 */
 	public static boolean isChosenMultipleSelection(int displayType)
 	{
-		if (displayType == ChosenMultipleSelectionList || displayType == ChosenMultipleSelectionSearch
+		return (   displayType == ChosenMultipleSelectionList
-				|| displayType == ChosenMultipleSelectionTable)
+				|| displayType == ChosenMultipleSelectionSearch
-			return true;
+				|| displayType == ChosenMultipleSelectionTable);
-		else
+	}
-			return false;
+	
+	/**
+	 * 
+	 * @param displayType
+	 * @return true if displayType is a multi ID string separated by commas
+	 */
+	public static boolean isMultiID(int displayType)
+	{
+		return (   displayType == ChosenMultipleSelectionSearch
+				|| displayType == ChosenMultipleSelectionTable
+				|| displayType == SingleSelectionGrid
+				|| displayType == MultipleSelectionGrid);
 	}
 	
 	/**************************************************************************

org.adempiere.base/src/org/idempiere/process/MoveClient.java

@@ -907,10 +907,7 @@ public class MoveClient extends SvrProcess {
 						String convertTable = column.getReferenceTableName();
 						if ((tableName + "_ID").equalsIgnoreCase(columnName)) {
 							convertTable = tableName;
-						} else if (   column.getAD_Reference_ID() == DisplayType.ChosenMultipleSelectionTable
+						} else if (DisplayType.isMultiID(column.getAD_Reference_ID())) {
-								   || column.getAD_Reference_ID() == DisplayType.ChosenMultipleSelectionSearch
-								   || column.getAD_Reference_ID() == DisplayType.SingleSelectionGrid
-								   || column.getAD_Reference_ID() == DisplayType.MultipleSelectionGrid) {
 							convertTable = column.getMultiReferenceTableName();
 						} else if (convertTable != null
 								&& ("AD_Ref_List".equalsIgnoreCase(convertTable)

org.adempiere.pipo.handlers/src/org/adempiere/pipo2/handler/GenericPOElementHandler.java

@@ -173,7 +173,7 @@ public class GenericPOElementHandler extends AbstractElementHandler {
 
 				if (createElement) {
 					// 
-					if (po.get_KeyColumns() != null && po.get_KeyColumns().length == 1 && po.get_ID() > 0
+					if (po.get_KeyColumns() != null && po.get_KeyColumns().length == 1 && (po.get_ID() > 0 || po.get_UUID() != null)
 						&& ! IHandlerRegistry.TABLE_GENERIC_SINGLE_HANDLER.equals(ctx.packOut.getCurrentPackoutItem().getType())) {
 						ElementHandler handler = ctx.packOut.getHandler(po.get_TableName());
 						if (handler != null && !handler.getClass().equals(this.getClass()) ) {
@@ -220,12 +220,21 @@ public class GenericPOElementHandler extends AbstractElementHandler {
 	private void exportDetail(PIPOContext ctx, TransformerHandler document, GenericPO parent, String[] tables) {
 		String mainTable = tables[0];
 		AttributesImpl atts = new AttributesImpl();
-		String sql = "SELECT * FROM " + mainTable + " WHERE " + parent.get_TableName() + "_ID = ?";
+		String keyColumn;
+		MTable table = MTable.get(ctx.ctx, parent.get_TableName());
+		if (table.isUUIDKeyTable())
+			keyColumn = PO.getUUIDColumnName(parent.get_TableName());
+		else
+			keyColumn = parent.get_TableName() + "_ID";
+		String sql = "SELECT * FROM " + mainTable + " WHERE " + keyColumn + " = ?";
 		PreparedStatement pstmt = null;
 		ResultSet rs = null;
 		try {
 			sql = MRole.getDefault().addAccessSQL(sql, mainTable, true, true);
 			pstmt = DB.prepareStatement(sql, null);
+			if (table.isUUIDKeyTable())
+				pstmt.setString(1, parent.get_UUID());
+			else
 				pstmt.setInt(1, parent.get_ID());
 			rs = pstmt.executeQuery();
 			while (rs.next()) {

org.adempiere.pipo.handlers/src/org/adempiere/pipo2/handler/IndexColumnElementHandler.java

@@ -58,7 +58,7 @@ public class IndexColumnElementHandler extends AbstractElementHandler {
 					parentId = getParentId(element, MTableIndex.Table_Name);
 				} else {
 					Element pfElement = element.properties.get(MIndexColumn.COLUMNNAME_AD_TableIndex_ID);
-					parentId = ReferenceUtils.resolveReference(ctx.ctx, pfElement, getTrxName(ctx));
+					parentId = ReferenceUtils.resolveReferenceAsInt(ctx.ctx, pfElement, getTrxName(ctx));
 				}
 				if (parentId <= 0) {
 					element.defer = true;
@@ -80,7 +80,7 @@ public class IndexColumnElementHandler extends AbstractElementHandler {
 			int columnId = 0;
 			Element columnElement = element.properties.get("AD_Column_ID");
 			if (ReferenceUtils.isIDLookup(columnElement) || ReferenceUtils.isUUIDLookup(columnElement)) {
-				columnId = ReferenceUtils.resolveReference(ctx.ctx, columnElement, getTrxName(ctx));
+				columnId = ReferenceUtils.resolveReferenceAsInt(ctx.ctx, columnElement, getTrxName(ctx));
 			}
 			if (columnId > 0)
 				mIndexColumn.setAD_Column_ID(columnId);

org.adempiere.pipo.handlers/src/org/adempiere/pipo2/handler/MenuElementHandler.java

@@ -103,7 +103,7 @@ public class MenuElementHandler extends AbstractElementHandler {
 		Element parentElement = element.properties.get("Parent_ID");
 		int parentId = 0;
 		if (parentElement != null) {
-			parentId = ReferenceUtils.resolveReference(ctx.ctx, parentElement, getTrxName(ctx));
+			parentId = ReferenceUtils.resolveReferenceAsInt(ctx.ctx, parentElement, getTrxName(ctx));
 		}
 
 			String strSeqNo = getStringValue(element, "SeqNo");

org.adempiere.pipo.handlers/src/org/adempiere/pipo2/handler/ReferenceTableElementHandler.java

@@ -65,12 +65,12 @@ public class ReferenceTableElementHandler extends AbstractElementHandler {
 				return;
 			}
 			Element displayElement = element.properties.get("AD_Display");
-			int displayColumnId = ReferenceUtils.resolveReference(ctx.ctx, displayElement, getTrxName(ctx));
+			int displayColumnId = ReferenceUtils.resolveReferenceAsInt(ctx.ctx, displayElement, getTrxName(ctx));
 			refTable.setAD_Display(displayColumnId);
 
 
 			Element keyElement = element.properties.get("AD_Key");
-			int keyColumnId = ReferenceUtils.resolveReference(ctx.ctx, keyElement, getTrxName(ctx));
+			int keyColumnId = ReferenceUtils.resolveReferenceAsInt(ctx.ctx, keyElement, getTrxName(ctx));
 			refTable.setAD_Key(keyColumnId);
 
 			if (refTable.is_new() || refTable.is_Changed()) {

org.adempiere.pipo.handlers/src/org/adempiere/pipo2/handler/ViewColumnElementHandler.java

@@ -58,7 +58,7 @@ public class ViewColumnElementHandler extends AbstractElementHandler {
 					parentId = getParentId(element, MViewComponent.Table_Name);
 				} else {
 					Element pfElement = element.properties.get(MViewColumn.COLUMNNAME_AD_ViewComponent_ID);
-					parentId = ReferenceUtils.resolveReference(ctx.ctx, pfElement, getTrxName(ctx));
+					parentId = ReferenceUtils.resolveReferenceAsInt(ctx.ctx, pfElement, getTrxName(ctx));
 				}
 				if (parentId <= 0) {
 					element.defer = true;

org.adempiere.pipo.handlers/src/org/adempiere/pipo2/handler/WorkflowElementHandler.java

@@ -116,7 +116,7 @@ public class WorkflowElementHandler extends AbstractElementHandler {
 			if (value != null && value.trim().length() > 0) {
 				MWorkflow m_Workflow = new MWorkflow(ctx.ctx, element.recordId, getTrxName(ctx));
 				PoFiller filler = new PoFiller(ctx, m_Workflow, element, this);
-				int id = filler.setTableReference("AD_WF_Node_ID");
+				int id = ((Number)filler.setTableReference("AD_WF_Node_ID")).intValue();
 				if (id <= 0) {
 					log.warning("Failed to resolve start node reference for workflow element. Workflow="
 							+ m_Workflow.getName() + " StartNode=" + value);

org.adempiere.pipo/src/org/adempiere/pipo2/AbstractElementHandler.java

@@ -141,7 +141,7 @@ public abstract class AbstractElementHandler implements ElementHandler {
 	public void backupRecord(PIPOContext ctx, int AD_Package_Imp_Detail_ID, String tableName,PO from){
 
     	// Create new record
-		MTable mTable = MTable.get(ctx.ctx, tableName);
+		MTable mTable = MTable.get(ctx.ctx, tableName, getTrxName(ctx));
     	int tableID = mTable.getAD_Table_ID();    			
 		POInfo poInfo = POInfo.getPOInfo(ctx.ctx, tableID);
 

org.adempiere.pipo/src/org/adempiere/pipo2/IDFinder.java

@@ -32,6 +32,7 @@ import org.apache.commons.codec.DecoderException;
 import org.apache.commons.codec.binary.Hex;
 import org.compiere.model.MColumn;
 import org.compiere.model.MTable;
+import org.compiere.model.PO;
 import org.compiere.util.CLogger;
 import org.compiere.util.DB;
 import org.compiere.util.DisplayType;
@@ -46,7 +47,7 @@ public class IDFinder {
 
 	private static final CLogger log = CLogger.getCLogger(IDFinder.class);
 
-	private static Map<String, Integer>idCache = new ConcurrentHashMap<String, Integer>(); 
+	private static Map<String, Object>idCache = new ConcurrentHashMap<String, Object>(); 
 
 	/**
 	 * Get ID from column value for a table.
@@ -58,11 +59,9 @@ public class IDFinder {
 	 * @param trxName
 	 * @return
 	 */
-	public static int findIdByColumn (String tableName, String columnName, Object value, int AD_Client_ID, boolean ignorecase, String trxName) {
+	public static Object findIdByColumn (String tableName, String columnName, Object value, int AD_Client_ID, boolean ignorecase, String trxName) {
 		if (value == null)
-			return 0;
+			return null;
-
-		int id = -1;
 
 		//construct cache key
 		StringBuilder key = new StringBuilder();
@@ -77,9 +76,18 @@ public class IDFinder {
 		if (idCache.containsKey(key.toString()))
 			return idCache.get(key.toString());
 
+		Object id = null;
+
+		MTable table = MTable.get(Env.getCtx(), tableName, trxName);
+		String keycol;
+		if (table.isUUIDKeyTable())
+			keycol = PO.getUUIDColumnName(tableName);
+		else
+			keycol = tableName + "_ID";
+
 		StringBuilder sqlB = new StringBuilder ("SELECT ")
-		 	.append(tableName)
+		 	.append(keycol)
-		 	.append("_ID FROM ")
+		 	.append(" FROM ")
 		 	.append(tableName)
 		 	.append(" WHERE ")
 		 	.append(" AD_Client_ID IN (0, ?) AND ");
@@ -124,11 +132,9 @@ public class IDFinder {
 			columns = new String[]{columnName};
 		}
 
-		sqlB.append(" Order By AD_Client_ID Desc, ")
+		sqlB.append(" ORDER BY AD_Client_ID DESC, ")
-			.append(tableName)
+			.append(keycol);
-			.append("_ID");
 
-		MTable table = MTable.get(Env.getCtx(), tableName);
 		PreparedStatement pstmt = null;
 		ResultSet rs = null;
 		try {
@@ -159,9 +165,13 @@ public class IDFinder {
 			}
 
 			rs = pstmt.executeQuery();
-			if (rs.next())
+			if (rs.next()) {
+				if (table.isUUIDKeyTable())
+					id = rs.getString(1);
+				else
 					id = rs.getInt(1);
 			}
+		}
 		catch (Exception e) {
 			throw new DatabaseAccessException(e);
 		} finally {
@@ -169,13 +179,13 @@ public class IDFinder {
 		}
 
 		//update cache
-		if (id >= 0)
+		if (id != null)
 			idCache.put(key.toString(), id);
 
 		return id;
 	}
 
-	public static int findIdByColumn(String tableName, String columnName, Object value, int clientId, String trxName) {
+	public static Object findIdByColumn(String tableName, String columnName, Object value, int clientId, String trxName) {
 		return findIdByColumn(tableName, columnName, value, clientId, false, trxName);
 	}
 	
@@ -188,8 +198,7 @@ public class IDFinder {
 	 * @param nameMaster
 	 * @param trxName
 	 */
-	public static int findIdByNameAndParentName (String tableName, String name, String tableNameMaster, String nameMaster, int AD_Client_ID, String trxName) {
+	public static Object findIdByNameAndParentName (String tableName, String name, String tableNameMaster, String nameMaster, int AD_Client_ID, String trxName) {
-		int id = 0;
 		//construct cache key
 		StringBuilder key = new StringBuilder();
 		key.append(tableName)
@@ -204,22 +213,35 @@ public class IDFinder {
 		if (idCache.containsKey(key.toString()))
 			return idCache.get(key.toString());
 
+		Object id = null;
+		MTable tableMaster = MTable.get(Env.getCtx(), tableNameMaster, trxName);
+		String keycolMaster;
+		if (tableMaster.isUUIDKeyTable())
+			keycolMaster = PO.getUUIDColumnName(tableNameMaster);
+		else
+			keycolMaster = tableNameMaster + "_ID";
 		StringBuilder parentSql = new StringBuilder("SELECT ")
-				.append(tableNameMaster)
+				.append(keycolMaster)
-				.append("_ID FROM ")
+				.append(" FROM ")
 				.append(tableNameMaster)
 				.append(" WHERE Name = ? AND AD_Client_ID IN (0, ?) ")
 				.append("ORDER BY AD_Client_ID  Desc");
-		int parentId = DB.getSQLValue(trxName, parentSql.toString(), name, Env.getAD_Client_ID(Env.getCtx()));
+		Object parentId = DB.getSQLValueEx(trxName, parentSql.toString(), name, Env.getAD_Client_ID(Env.getCtx()));
 
-		if (parentId > 0) {
+		if (parentId != null) {
+			MTable table = MTable.get(Env.getCtx(), tableName, trxName);
+			String keycol;
+			if (table.isUUIDKeyTable())
+				keycol = PO.getUUIDColumnName(tableName);
+			else
+				keycol = tableNameMaster + "_ID";
 			StringBuilder sqlB = new StringBuilder ("SELECT ")
-				.append(tableName)
+				.append(keycol)
-				.append("_ID FROM ")
+				.append(" FROM ")
 				.append(tableName)
 				.append(" WHERE Name = ? AND ")
-				.append(tableNameMaster)
+				.append(keycol)
-				.append("_ID = ?");
+				.append(" = ?");
 
 			PreparedStatement pstmt = null;
 			ResultSet rs = null;
@@ -227,7 +249,10 @@ public class IDFinder {
 				pstmt = DB.prepareStatement(sqlB.toString(), trxName);
 				pstmt.setString(1, name);
 				pstmt.setString(2, nameMaster);
-				pstmt.setInt(3, parentId);
+				if (table.isUUIDKeyTable())
+					pstmt.setString(3, (String)parentId);
+				else
+					pstmt.setInt(3, ((Number)parentId).intValue());
 				rs = pstmt.executeQuery();
 				if (rs.next())
 					id = rs.getInt(1);
@@ -239,7 +264,7 @@ public class IDFinder {
 		}
 
 		//update cache
-		if (id > 0)
+		if (id != null)
 			idCache.put(key.toString(), id);
 
 		return id;
@@ -257,7 +282,7 @@ public class IDFinder {
 	 * @param trxName
 	 * @return
 	 */
-	public static int findIdByColumnAndParentId (String tableName, String columnName, String name, String tableNameMaster, int masterID, int AD_Client_ID, String trxName) {
+	public static Object findIdByColumnAndParentId (String tableName, String columnName, String name, String tableNameMaster, Object masterID, int AD_Client_ID, String trxName) {
 		return findIdByColumnAndParentId(tableName, columnName, name, tableNameMaster, masterID, AD_Client_ID, false, trxName);
 	}
 	
@@ -271,29 +296,41 @@ public class IDFinder {
      * @param trxName
      */
 
-	public static int findIdByColumnAndParentId (String tableName, String columnName, String name, String tableNameMaster, int masterID, int AD_Client_ID, boolean ignoreCase, String trxName) {
+	public static Object findIdByColumnAndParentId (String tableName, String columnName, String name, String tableNameMaster, Object masterID, int AD_Client_ID, boolean ignoreCase, String trxName) {
-		int id = 0;
-
 		//check cache
 		String key = tableName + "." + columnName + "=" + name + tableNameMaster + "=" + masterID;
 
 		if (idCache.containsKey(key))
 			return idCache.get(key);
 
+		Object id = null;
+
+		MTable table = MTable.get(Env.getCtx(), tableName, trxName);
+		String keycol;
+		if (table.isUUIDKeyTable())
+			keycol = PO.getUUIDColumnName(tableName);
+		else
+			keycol = tableName + "_ID";
+		MTable tableMaster = MTable.get(Env.getCtx(), tableNameMaster, trxName);
+		String keycolMaster;
+		if (tableMaster.isUUIDKeyTable())
+			keycolMaster = PO.getUUIDColumnName(tableNameMaster);
+		else
+			keycolMaster = tableNameMaster + "_ID";
 		StringBuilder sqlB = new StringBuilder ("SELECT ")
-			.append(tableName)
+			.append(keycol)
-			.append("_ID FROM ")
+			.append(" FROM ")
 			.append(tableName)
 			.append(" WHERE ");
 		if (ignoreCase) {
-			sqlB.append("Upper(")
+			sqlB.append("UPPER(")
 				.append(columnName)
-				.append(") = ? and ");
+				.append(") = ? AND ");
 		} else {
 			sqlB.append(columnName)
-				.append(" = ? and ");
+				.append(" = ? AND ");
 		}
-		sqlB.append(tableNameMaster+"_ID = ? AND AD_Client_ID IN (0, ?) ")
+		sqlB.append(keycolMaster+" = ? AND AD_Client_ID IN (0, ?) ")
 			.append("ORDER BY AD_Client_ID Desc ");
 
 		if (log.isLoggable(Level.INFO)) log.info(sqlB.toString());
@@ -308,12 +345,15 @@ public class IDFinder {
 			} else {
 				pstmt.setString(1, name);
 			}
-			pstmt.setInt(2, masterID);
+			if (tableMaster.isUUIDKeyTable())
+				pstmt.setString(2, (String)masterID);
+			else
+				pstmt.setInt(2, ((Number)masterID).intValue());
 			pstmt.setInt(3, AD_Client_ID);
 			rs = pstmt.executeQuery();
 			if (rs.next())
 			{
-				id = rs.getInt(1);
+				id = rs.getObject(1);
 			}
 		}
 		catch (Exception e) {
@@ -323,7 +363,7 @@ public class IDFinder {
 		}
 
 		//update cache
-		if (id > 0)
+		if (id != null)
 			idCache.put(key, id);
 
 		return id;
@@ -338,9 +378,7 @@ public class IDFinder {
 	 * @param masterID
 	 * @param trxName
 	 */
-	public static int findIdByNameAndParentId (String tableName, String name, String tableNameMaster, int masterID, int AD_Client_ID, String trxName) {
+	public static Object findIdByNameAndParentId (String tableName, String name, String tableNameMaster, Object masterID, int AD_Client_ID, String trxName) {
-		int id = 0;
-
 		//construct cache key
 		StringBuilder key = new StringBuilder();
 		key.append(tableName)
@@ -357,25 +395,41 @@ public class IDFinder {
 		if (idCache.containsKey(key.toString()))
 			return idCache.get(key.toString());
 
+		Object id = null;
+		MTable table = MTable.get(Env.getCtx(), tableName, trxName);
+		String keycol;
+		if (table.isUUIDKeyTable())
+			keycol = PO.getUUIDColumnName(tableName);
+		else
+			keycol = tableName + "_ID";
+		MTable tableMaster = MTable.get(Env.getCtx(), tableNameMaster, trxName);
+		String keycolMaster;
+		if (tableMaster.isUUIDKeyTable())
+			keycolMaster = PO.getUUIDColumnName(tableNameMaster);
+		else
+			keycolMaster = tableNameMaster + "_ID";
 		StringBuilder sqlB = new StringBuilder ("SELECT ")
-			.append(tableName)
+			.append(keycol)
-			.append("_ID FROM ")
+			.append(" FROM ")
 			.append(tableName)
 			.append(" WHERE Name=? AND ")
-			.append(tableNameMaster)
+			.append(keycolMaster)
-			.append("_ID=? AND AD_Client_ID IN (0, ?) ")
+			.append("=? AND AD_Client_ID IN (0, ?) ")
-			.append("ORDER BY AD_Client_ID Desc");
+			.append("ORDER BY AD_Client_ID DESC");
 
 		PreparedStatement pstmt = null;
 		ResultSet rs = null;
 		try {
 			pstmt = DB.prepareStatement(sqlB.toString(), trxName);
 			pstmt.setString(1, name);
-			pstmt.setInt(2, masterID);
+			if (tableMaster.isUUIDKeyTable())
+				pstmt.setString(2, (String)masterID);
+			else
+				pstmt.setInt(2, ((Number)masterID).intValue());
 			pstmt.setInt(3, AD_Client_ID);
 			rs = pstmt.executeQuery();
 			if (rs.next())
-				id = rs.getInt(1);
+				id = rs.getObject(1);
 		}
 		catch (Exception e) {
 			throw new DatabaseAccessException(e);
@@ -384,7 +438,7 @@ public class IDFinder {
 		}
 
 		//update cache
-		if (id > 0)
+		if (id != null)
 			idCache.put(key.toString(), id);
 
 		return id;
@@ -398,9 +452,7 @@ public class IDFinder {
 	 * @param AD_Client_ID
 	 * @param trxName
 	 */
-	public static int findIdByName (String tableName, String name, int AD_Client_ID, String trxName) {
+	public static Object findIdByName (String tableName, String name, int AD_Client_ID, String trxName) {
-		int id = 0;
-
 		//construct cache key
 		StringBuilder key = new StringBuilder();
 		key.append(tableName)
@@ -413,12 +465,18 @@ public class IDFinder {
 		if (idCache.containsKey(key.toString()))
 			return idCache.get(key.toString());
 
+		Object id = null;
+		MTable table = MTable.get(Env.getCtx(), tableName, trxName);
+		String keycol;
+		if (table.isUUIDKeyTable())
+			keycol = PO.getUUIDColumnName(tableName);
+		else
+			keycol = tableName + "_ID";
+
 		StringBuilder sql = new StringBuilder("SELECT ")
-			.append(tableName)
+			.append(keycol)
-			.append("_ID ")
 			.append(" FROM ")
 			.append(tableName)
-			.append(" ")
 			.append(" WHERE Name=? ")
 			.append(" AND AD_Client_ID IN (0, ?) ")
 			.append(" ORDER BY AD_Client_ID Desc");
@@ -431,7 +489,7 @@ public class IDFinder {
 			pstmt.setInt(2, AD_Client_ID);
 			rs = pstmt.executeQuery();
 			if (rs.next())
-				id = rs.getInt(1);
+				id = rs.getObject(1);
 		}
 		catch (Exception e) {
 			throw new DatabaseAccessException(e);
@@ -440,7 +498,7 @@ public class IDFinder {
 		}
 
 		//update cache
-		if (id > 0)
+		if (id != null)
 			idCache.put(key.toString(), id);
 
 		return id;

org.adempiere.pipo/src/org/adempiere/pipo2/POFinder.java

@@ -47,7 +47,7 @@ public class POFinder {
 		int AD_Client_ID = Env.getAD_Client_ID(ctx);
 		if (AD_Client_ID==0)
 			return uuid;
-		MTable table = MTable.get(ctx, tableName);
+		MTable table = MTable.get(ctx, tableName, trxName);
 		if (table == null) {
 			throw new IllegalStateException("getTargetUUID couldn't find table named " + tableName);
 		}
@@ -64,7 +64,7 @@ public class POFinder {
 	 */
 	public static void updateUUIDMap(PIPOContext ctx, String tableName, String uuid, String targetUUID) {
 		X_AD_Package_UUID_Map map = new X_AD_Package_UUID_Map(ctx.ctx, 0, ctx.trx.getTrxName());
-		MTable table = MTable.get(ctx.ctx, tableName);
+		MTable table = MTable.get(ctx.ctx, tableName, ctx.trx.getTrxName());
 		map.setAD_Table_ID(table.getAD_Table_ID());
 		map.setSource_UUID(uuid);
 		map.setTarget_UUID(targetUUID);

org.adempiere.pipo/src/org/adempiere/pipo2/PackRollProcess.java

@@ -137,7 +137,7 @@ public class PackRollProcess extends SvrProcess {
 									DB.close(rs, pstmt);
 								}
 								// Get Table value
-								tableName = MTable.getTableName(getCtx(), backup.getAD_Table_ID());
+								tableName = MTable.get(getCtx(), backup.getAD_Table_ID(), get_TrxName()).getTableName();
 
 								// Get Column Name
 								// Adjust for Column reference table

org.adempiere.pipo/src/org/adempiere/pipo2/PoExporter.java

@@ -173,15 +173,40 @@ public class PoExporter {
 	}
 
 	public void addTableReference(String columnName, String tableName, AttributesImpl atts) {
+		if (tableName != null) {
+			MTable table = MTable.get(po.getCtx(), tableName, po.get_TrxName());
+			if (table.isUUIDKeyTable()) {
+				String uuid = (String)po.get_Value(columnName);
+				addTableReferenceUUID(columnName, tableName, uuid, atts);
+			} else {
 				int id = po.get_Value(columnName) != null ? (Integer)po.get_Value(columnName) : -1;
 				addTableReference(columnName, tableName, id, atts);
 			}
+		}
+	}
+
+	public void addTableReferenceMulti(String columnName, String tableName, AttributesImpl atts) {
+		if (tableName != null) {
+			String values = (String)po.get_Value(columnName);
+			addTableReferenceMulti(columnName, tableName, values, atts);
+		}
+	}
 
 	public void addTableReference(String columnName, String tableName, int id, AttributesImpl atts) {
-		String value = ReferenceUtils.getTableReference(tableName, id, atts);
+		String value = ReferenceUtils.getTableReference(tableName, id, atts, po.get_TrxName());
 		addString(columnName, value, atts);
 	}
 
+	public void addTableReferenceUUID(String columnName, String tableName, String uuid, AttributesImpl atts) {
+		String value = ReferenceUtils.getTableReferenceUUID(tableName, uuid, atts);
+		addString(columnName, value, atts);
+	}
+
+	public void addTableReferenceMulti(String columnName, String tableName, String values, AttributesImpl atts) {
+		String target_values = ReferenceUtils.getTableReferenceMulti(tableName, values, atts, po.get_TrxName());
+		addString(columnName, target_values, atts);
+	}
+
 	public void export(List<String> excludes) {
 		export(excludes, false);
 	}
@@ -249,10 +274,10 @@ public class PoExporter {
 				add(columnName, false, new AttributesImpl());
 			} else if (DisplayType.TableDir == displayType || DisplayType.ID == displayType) {
 				String tableName = null;
-				if ("Record_ID".equalsIgnoreCase(columnName) && po.get_ColumnIndex("AD_Table_ID") >= 0) {
+				if (("Record_ID".equalsIgnoreCase(columnName) || "Record_UU".equalsIgnoreCase(columnName)) && po.get_ColumnIndex("AD_Table_ID") >= 0) {
-					int AD_Table_ID = po.get_Value(po.get_ColumnIndex("AD_Table_ID")) != null
+					int AD_Table_ID = po.get_ValueAsInt("AD_Table_ID");
-							? (Integer)po.get_Value(po.get_ColumnIndex("AD_Table_ID")) : 0;
+					if (AD_Table_ID > 0)
-					tableName = MTable.getTableName(ctx.ctx, AD_Table_ID);
+						tableName = MTable.get(ctx.ctx, AD_Table_ID, ctx.trx.getTrxName()).getTableName();
 				} else if (po.get_TableName().equals("AD_TreeNode") && columnName.equals("Parent_ID")) {
 					int AD_Tree_ID = po.get_ValueAsInt("AD_Tree_ID");
 					MTree tree = new MTree(ctx.ctx, AD_Tree_ID, ctx.trx.getTrxName());
@@ -269,15 +294,20 @@ public class PoExporter {
 				add(columnName, "", new AttributesImpl());
 			} else if (DisplayType.isLookup(displayType)) {
 				String tableName = null;
-				if ("Record_ID".equalsIgnoreCase(columnName) && po.get_ColumnIndex("AD_Table_ID") >= 0) {
+				if (("Record_ID".equalsIgnoreCase(columnName) || "Record_UU".equalsIgnoreCase(columnName)) && po.get_ColumnIndex("AD_Table_ID") >= 0) {
-					int AD_Table_ID = po.get_Value(po.get_ColumnIndex("AD_Table_ID")) != null
+					int AD_Table_ID = po.get_ValueAsInt("AD_Table_ID");
-						? (Integer)po.get_Value(po.get_ColumnIndex("AD_Table_ID")) : 0;
+					if (AD_Table_ID > 0)
-					tableName = MTable.getTableName(ctx.ctx, AD_Table_ID);
+						tableName = MTable.get(ctx.ctx, AD_Table_ID, ctx.trx.getTrxName()).getTableName();
 				} else if (info.getColumnLookup(i) != null){
 					String lookupColumn = info.getColumnLookup(i).getColumnName();
 					tableName = lookupColumn.substring(0, lookupColumn.indexOf("."));
 				}
+				if (   info.getColumnDisplayType(i) == DisplayType.ChosenMultipleSelectionList
+					|| DisplayType.isMultiID(info.getColumnDisplayType(i))) {
+					addTableReferenceMulti(columnName, tableName, new AttributesImpl());
+				} else {
 					addTableReference(columnName, tableName, new AttributesImpl());
+				}
 			} else if (DisplayType.Account == displayType) {
 				String tableName = "C_ValidCombination";
 				addTableReference(columnName, tableName, new AttributesImpl());

org.adempiere.pipo/src/org/adempiere/pipo2/PoFiller.java

@@ -173,7 +173,7 @@ public class PoFiller{
 	 *
 	 * @param qName
 	 */
-	public int setTableReference(String qName) {
+	public Object setTableReference(String qName) {
 		Element e = element.properties.get(qName);
 		if (e == null)
 			return 0;
@@ -181,13 +181,6 @@ public class PoFiller{
 		String value = e.contents.toString();
 		String columnName = qName;
 		if (value != null && value.trim().length() > 0) {
-			int id = ReferenceUtils.resolveReference(ctx.ctx, e, po.get_TrxName());
-			if (columnName.equals("AD_Client_ID") && id > 0) {
-				if (id != Env.getAD_Client_ID(ctx.ctx)) {
-					return -1;
-				}
-			}
-			if (po.get_ColumnIndex(columnName) >= 0) {
 			MColumn col = MColumn.get(ctx.ctx, po.get_TableName(), columnName, po.get_TrxName());
 			if (col == null) {
 				POInfo poInfo = POInfo.getPOInfo(ctx.ctx, po.get_Table_ID(), po.get_TrxName());
@@ -195,12 +188,28 @@ public class PoFiller{
 				if (col.get_ID() == 0)
 					return -1;
 			}
+			boolean isMulti = DisplayType.isMultiID(col.getAD_Reference_ID());
+			Object id;
+			if (isMulti)
+				id = ReferenceUtils.resolveReferenceMulti(ctx.ctx, e, po.get_TrxName());
+			else
+				id = ReferenceUtils.resolveReference(ctx.ctx, e, po.get_TrxName());
+			if (columnName.equals("AD_Client_ID") && ((Number)id).intValue() > 0) {
+				if (((Number)id).intValue() != Env.getAD_Client_ID(ctx.ctx)) {
+					return -1;
+				}
+			}
+			if (po.get_ColumnIndex(columnName) >= 0) {
 				MTable foreignTable = null;
-				String refTableName = col.getReferenceTableName();
+				String refTableName;
+				if (isMulti)
+					refTableName = col.getMultiReferenceTableName();
+				else
+					refTableName = col.getReferenceTableName();
 				if (refTableName != null) {
 					foreignTable = MTable.get(Env.getCtx(), refTableName, po.get_TrxName());
 				} else {
-					if ("Record_ID".equalsIgnoreCase(columnName)) {
+					if ("Record_ID".equalsIgnoreCase(columnName) || "Record_UU".equalsIgnoreCase(columnName)) {
 						// special case - get the foreign table using AD_Table_ID
 						int tableID = 0;
 						try {
@@ -220,31 +229,30 @@ public class PoFiller{
 						}
 					}
 				}
-				if (id > 0 && refTableName != null) {
+				if (id != null && refTableName != null) {
 					if (foreignTable != null) {
-						/* Allow to read here from another tenant, cross tenant control is implemented later in a safe way */
+						if (isMulti) {
-						PO subPo = null;
+							for (String idstring : id.toString().split(",")) {
-		    			try {
+								if (!isValidTenant(foreignTable, idstring, isMulti))
-		    				PO.setCrossTenantSafe();
+									return -1;
-		    				subPo = foreignTable.getPO(id, po.get_TrxName());
-		    			} finally {
-		    				PO.clearCrossTenantSafe();
 							}
-						if (subPo != null && subPo.getAD_Client_ID() != Env.getAD_Client_ID(ctx.ctx)) {
+						} else {
-							String accessLevel = foreignTable.getAccessLevel();
+							if (!isValidTenant(foreignTable, id, isMulti))
-							if ((MTable.ACCESSLEVEL_All.equals(accessLevel)
-									|| MTable.ACCESSLEVEL_SystemOnly.equals(accessLevel)
-									|| MTable.ACCESSLEVEL_SystemPlusClient.equals(accessLevel)) && 
-									subPo.getAD_Client_ID() != 0)
 								return -1;
 						}
 					}
 
-					if (po.get_ValueAsInt(columnName) != id) {
+    				if (id instanceof String) {
+    					if (!((String)id).equals(po.get_ValueAsString(columnName))) {
     						po.set_ValueNoCheck(columnName, id);
     					}
+    				} else {
+    					if (po.get_ValueAsInt(columnName) != ((Number)id).intValue()) {
+    						po.set_ValueNoCheck(columnName, id);
+    					}
+    				}
 					return id;
-				} else if (id == 0) {
+				} else if (id instanceof Number && ((Number)id).intValue() == 0) {
 					if (refTableName != null && MTable.isZeroIDTable(refTableName)) {
 						po.set_ValueNoCheck(columnName, id);
 						return id;
@@ -260,6 +268,38 @@ public class PoFiller{
 		}
 	}
 
+	private boolean isValidTenant(MTable foreignTable, Object id, boolean isMulti) {
+		/* Allow to read here from another tenant, cross tenant control is implemented later in a safe way */
+		PO subPo = null;
+		try {
+			PO.setCrossTenantSafe();
+			if (id instanceof String) {
+				if (isMulti) {
+					subPo = foreignTable.getPO(Integer.valueOf(id.toString()), po.get_TrxName());
+				} else {
+					subPo = foreignTable.getPOByUU((String)id, po.get_TrxName());
+				}
+			} else {
+				if (((Number)id).intValue() == 0 && MTable.isZeroIDTable(foreignTable.getTableName()))
+					return true;
+				subPo = foreignTable.getPO(((Number)id).intValue(), po.get_TrxName());
+			}
+		} finally {
+			PO.clearCrossTenantSafe();
+		}
+		if (subPo != null && subPo.getAD_Client_ID() != Env.getAD_Client_ID(ctx.ctx)) {
+			String accessLevel = foreignTable.getAccessLevel();
+			if ((MTable.ACCESSLEVEL_All.equals(accessLevel)
+					|| MTable.ACCESSLEVEL_SystemOnly.equals(accessLevel)
+					|| MTable.ACCESSLEVEL_SystemPlusClient.equals(accessLevel)) && 
+					subPo.getAD_Client_ID() != 0)
+				return false;
+		}
+		if (subPo.is_new())
+			return false;
+		return true;
+	}
+
 	/**
 	 * process all attributes
 	 * @param excludes list of attribute to exclude
@@ -289,7 +329,7 @@ public class PoFiller{
 			} else if (sAD_Org_ID != null && sAD_Org_ID.equals("@AD_Org_ID@")) {
 				po.setAD_Org_ID(Env.getAD_Org_ID(ctx.ctx));
 			} else {
-				if (setTableReference("AD_Client_ID") >= 0)
+				if (((Number)setTableReference("AD_Client_ID")).intValue() >= 0)
 					setTableReference("AD_Org_ID");
 			}
 		}
@@ -310,8 +350,8 @@ public class PoFiller{
 			}
 			Element e = element.properties.get(qName);
 			if (ReferenceUtils.isLookup(e)) {
-				int id = setTableReference(qName);
+				Object id = setTableReference(qName);
-				if (id < 0) {
+				if (id == null || (id instanceof Number && ((Number)id).intValue() < 0)) {
 					notFounds.add(qName);
 				}
 			} else {

org.adempiere.pipo/src/org/adempiere/pipo2/ReferenceUtils.java

@@ -7,6 +7,7 @@ import org.compiere.model.PO;
 import org.compiere.util.CLogger;
 import org.compiere.util.DB;
 import org.compiere.util.Env;
+import org.compiere.util.Util;
 import org.xml.sax.helpers.AttributesImpl;
 
 public class ReferenceUtils {
@@ -21,7 +22,22 @@ public class ReferenceUtils {
 	 * @param trxName
 	 * @return positive id if found
 	 */
-	public static int resolveReference(Properties ctx, Element e, String trxName)
+	public static int resolveReferenceAsInt(Properties ctx, Element e, String trxName)
+	{
+		Object id = resolveReference(ctx, e, trxName);
+		if (id instanceof Number)
+			return ((Number)id).intValue();
+		return -1;
+	}
+
+	/**
+	 *
+	 * @param ctx
+	 * @param e
+	 * @param trxName
+	 * @return positive id if found
+	 */
+	public static Object resolveReference(Properties ctx, Element e, String trxName)
 	{
 		String value = e.contents.toString();
 		String referenceKey = e.attributes.getValue("reference-key");
@@ -36,7 +52,7 @@ public class ReferenceUtils {
 			{
 				String uuid = value.trim();
 				String target = Env.getAD_Client_ID(ctx) > 0 ? POFinder.getTargetUUID(ctx, referenceKey, uuid, trxName) : uuid;
-				int id = IDFinder.findIdByColumn(referenceKey, PO.getUUIDColumnName(referenceKey), target, Env.getAD_Client_ID(ctx), trxName);
+				Object id = IDFinder.findIdByColumn(referenceKey, PO.getUUIDColumnName(referenceKey), target, Env.getAD_Client_ID(ctx), trxName);
 				return id;
 			}
 			else
@@ -50,6 +66,36 @@ public class ReferenceUtils {
 		}
 	}
 
+	/**
+	 *
+	 * @param ctx
+	 * @param e
+	 * @param trxName
+	 * @return list of IDs or UUIDs if found
+	 */
+	public static Object resolveReferenceMulti(Properties ctx, Element e, String trxName)
+	{
+		String values = e.contents.toString();
+		String referenceKey = e.attributes.getValue("reference-key");
+		if (values != null && values.trim().length() > 0) {
+			String target_values = null;
+			for (String uuid : values.split(",")) {
+				// multi is always UUID, even for official IDs
+				String target = Env.getAD_Client_ID(ctx) > 0 ? POFinder.getTargetUUID(ctx, referenceKey, uuid, trxName) : uuid;
+				Object id = IDFinder.findIdByColumn(referenceKey, PO.getUUIDColumnName(referenceKey), target, Env.getAD_Client_ID(ctx), trxName);
+				if (id == null) // one of the multi UUID was not found, invalidate the complete string
+					return -1;
+				if (target_values == null)
+					target_values = id.toString();
+				else
+					target_values += "," + id.toString();
+			}
+			return target_values;
+		} else {
+			return 0;
+		}
+	}
+
 	public static boolean isLookup(Element element)
 	{
 		if (isIDLookup(element) || isUUIDLookup(element))
@@ -68,7 +114,7 @@ public class ReferenceUtils {
 		return "uuid".equals(element.attributes.getValue("reference"));
 	}
 
-	public static String getTableReference(String tableName, int id, AttributesImpl atts)
+	public static String getTableReference(String tableName, int id, AttributesImpl atts, String trxName)
 	{
 		String keyColumn = tableName + "_ID";
 		if (   (id > 0 && id <= PackOut.MAX_OFFICIAL_ID)
@@ -87,7 +133,7 @@ public class ReferenceUtils {
 		}
 		else
 		{
-			MTable table = MTable.get(Env.getCtx(), tableName);
+			MTable table = MTable.get(Env.getCtx(), tableName, trxName);
 			if (table == null)
 				throw new RuntimeException("Table Not Found. TableName="+tableName);
 			String uuidColumnName = PO.getUUIDColumnName(tableName);
@@ -110,6 +156,62 @@ public class ReferenceUtils {
 		atts.addAttribute("", "", "reference", "CDATA", "id");
 		return "";
 	}
+
+	public static String getTableReferenceUUID(String tableName, String uuid, AttributesImpl atts)
+	{
+		if (Util.isEmpty(uuid))
+		{
+			//no uuid
+			atts.addAttribute("", "", "reference", "CDATA", "uuid");
+			return "";
+		}
+		else
+		{
+			//uuid
+			atts.addAttribute("", "", "reference", "CDATA", "uuid");
+			atts.addAttribute("", "", "reference-key", "CDATA", tableName);
+			return uuid.trim();
+		}
 	}
 
+	public static String getTableReferenceMulti(String tableName, String values, AttributesImpl atts, String trxName)
+	{
+		atts.addAttribute("", "", "reference", "CDATA", "uuid");
+		if (Util.isEmpty(values)) {
+			return "";
+		}
+		MTable table = MTable.get(Env.getCtx(), tableName, trxName);
+		if (table == null)
+			throw new RuntimeException("Table Not Found. TableName="+tableName);
+		if (table.isUUIDKeyTable()) {
+			//uuid
+			atts.addAttribute("", "", "reference-key", "CDATA", tableName);
+			return values.trim();
+		}
 
+		// convert multi-IDs to multi-UUIDs
+		String target_values = "";
+		String keyColumn = tableName + "_ID";
+		String uuidColumnName = PO.getUUIDColumnName(tableName);
+		for (String value : values.split(",")) {
+			int id = Integer.valueOf(value);
+			// Translate always IDs to UUIDs, even for official IDs,
+			// because it would be more complex to manage a combination of official IDs and UUIDs
+			if (table.getColumn(uuidColumnName) != null) {
+				//uuid
+				String sql = "SELECT " + uuidColumnName + " FROM "
+						+ tableName + " WHERE " + keyColumn + " = ?";
+				String valuePartial = DB.getSQLValueString(null, sql, id);
+				if (!Util.isEmpty(valuePartial, true)) {
+					if (target_values.length() == 0)
+						target_values = valuePartial;
+					else
+						target_values += "," + valuePartial;
+				}
+			}
+		}
+		atts.addAttribute("", "", "reference-key", "CDATA", tableName);
+		return target_values;
+	}
+
+}