Bug 210507 Enhance Report engine to support multiple view
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/parser/EngineIRVisitor.java
String id = ModuleUtil.getScriptUID( handle.getPropertyHandle( IGroupElementModel.ON_PAGE_BREAK_METHOD ) );
			ScriptExpression scriptExpr = new ScriptExpression( scriptText,
					id );
			group.setOnPageBreak( scriptExpr );
		}
		
		group.setHandle( handle );
		group.setJavaClass( handle.getEventHandlerClass( ) );
		
	}
	/**
	 * create a table band using the items in slot.
	 * 
	 * @param elements
	 *            items in DE's IR
	 * @return TableBand.
	 */
	private TableBandDesign createTableBand( SlotHandle elements )
	{
		TableBandDesign band = new TableBandDesign( );
		band.setID( generateUniqueID( ) );
		setupElementIDMap( band );
		for ( int i = 0; i < elements.getCount( ); i++ )
		{
			apply( elements.get( i ) );
			if ( currentElement != null )
			{
				band.addRow( (RowDesign) currentElement );
			}
		}