Bug 122306 TOC on group won't be displayed
Description: TOC on group won't be displayed Steps to reproduce: 1.Add a sample datasource and a data with table "CUSTOMERS" 2.Add a table binding with data set 3.Add a group on the table and set the toc expression to "Group" 4.Preview in HTML Expected result: TOC "Group" will be displayed on the TOC pane Actual result: Nothing in the TOC pane
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/parser/EngineIRVisitor.java
{
			return;
		}
		MapDesign map = new MapDesign( );
		while ( iter.hasNext( ) )
		{
			MapRuleHandle ruleHandle = ( MapRuleHandle ) iter.next( );
			MapRuleDesign rule = createMapRule( ruleHandle, defaultStr );
			if ( rule != null )
			{
				map.addRule( rule );
			}
		}
		if ( map.getRuleCount( ) > 0 )
		{
			item.setMap( map );
		}
	}
	/**
	 * create a map rule.
	 * 
	 * @param obj
	 *            map rule in DE.
	 * @return map rule in ENGINE.
	 */
	protected MapRuleDesign createMapRule( MapRuleHandle handle,
			String defaultStr )
	{
		MapRuleDesign rule = new MapRuleDesign( );
		rule.setExpression( handle.getOperator( ), handle.getValue1( ), handle