Bug 210507 Enhance Report engine to support multiple view
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/parser/EngineIRVisitor.java
* @param handle
	 *            De's list group
	 * @return engine's list group
	 */
	public void visitListGroup( ListGroupHandle handle )
	{
		ListGroupDesign listGroup = new ListGroupDesign( );
		setupGroup( listGroup, handle );
		SlotHandle headerSlot = handle.getHeader( );
		if ( headerSlot.getCount( ) > 0 )
		{
			ListBandDesign header = createListBand( headerSlot );
			header.setBandType( ListBandDesign.GROUP_HEADER );
			header.setGroup( listGroup );
			listGroup.setHeader( header );
			listGroup.setHeaderRepeat( handle.repeatHeader( ) );
			
			String toc = handle.getTocExpression( );
			if ( null != toc && !"".equals( toc.trim( ) ) ) 
			{
				listGroup.setTOC( createExpression( toc ) );
			}
		}
		SlotHandle footerSlot = handle.getFooter( );
		if ( footerSlot.getCount( ) > 0 )
		{
			ListBandDesign footer = createListBand( footerSlot );
			footer.setBandType( ListBandDesign.GROUP_FOOTER );
			footer.setGroup( listGroup );
			listGroup.setFooter( footer );