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IDEMPIERE-2488:Info Window run Query twice 

fix potential overflow number.
when number of row is near Integer.MAX_VALUE will let overflow number
This commit is contained in:
hieplq 2015-08-09 18:02:19 +08:00
parent b398843bc7
commit f75ed55e93
1 changed files with 27 additions and 4 deletions
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31
org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/panel/InfoPanel.java
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@ -132,7 +132,8 @@ public abstract class InfoPanel extends Window implements EventListener<Event>,
protected boolean isIgnoreCacheAll = true;
// Num of page preload, default is 2 page before current and 2 page after current
protected int numPagePreLoad = MSysConfig.getIntValue(MSysConfig.ZK_INFO_NUM_PAGE_RELOAD, DEFAULT_PAGE_RELOAD);
// max end index is integer.max_value - 1, not integer.max_value.
protected int extra_max_row = 1;
/**
* MInfoColumn has isKey = true, play as key column in case non column has
* isKey = true, this column is null and we use {@link #p_keyColumn}
@ -760,7 +761,7 @@ public abstract class InfoPanel extends Window implements EventListener<Event>,
}
}
setCacheStart(start + 1 - (pageSize * numPagePreLoad));
setCacheStart(getOverIntValue((long)start + 1 - (pageSize * numPagePreLoad)));
if (getCacheStart() <= 0)
setCacheStart(1);
@ -770,7 +771,7 @@ public abstract class InfoPanel extends Window implements EventListener<Event>,
}
else
{
cacheEnd = end + 1 + (pageSize * numPagePreLoad);
cacheEnd = getOverIntValue(end + 1 + (pageSize * numPagePreLoad));
if (cacheEnd > m_count)
cacheEnd = m_count;
}
@ -880,6 +881,28 @@ public abstract class InfoPanel extends Window implements EventListener<Event>,
return line.subList(fromIndex, toIndex);
}
/**
* when calculator value at bound, sometime value is overflow by data type
* this function calculator at high type for avoid it
* @param overValue
* @return
*/
protected int getOverIntValue (long overValue){
return getOverIntValue (overValue, 0);
}
/**
* see {@link #getOverIntValue(long)}. when value over max_value set it near max_value.
* @param overValue
* @param extra
* @return
*/
protected int getOverIntValue (long overValue, int extra){
if (overValue >= Integer.MAX_VALUE)
overValue = Integer.MAX_VALUE - extra;
return (int)overValue;
}
protected String buildDataSQL(int start, int end) {
String dataSql;
String dynWhere = getSQLWhere();
@ -1650,7 +1673,7 @@ public abstract class InfoPanel extends Window implements EventListener<Event>,
pageNo = pgNo;
int start = pageNo * pageSize;
int end = start + pageSize;
int end = getOverIntValue ((long)start + pageSize, extra_max_row);
if (end >= m_count)
end = m_count;
List<Object> subList = readLine(start, end);