return ( (ReportItemHandle) handle ).columnBindingsIterator( );
else if ( handle instanceof ReportItemHandle ) { return ( (ReportItemHandle) handle ).columnBindingsIterator( ); } return Collections.EMPTY_LIST.iterator( );
	public static Iterator getBindingColumnIterator( DesignElementHandle handle )	{		Assert.isLegal( handle instanceof ReportItemHandle				|| handle instanceof GroupHandle );		if ( handle instanceof GroupHandle )		{			return ( (GroupHandle) handle ).columnBindingsIterator( );		}		return ( (ReportItemHandle) handle ).columnBindingsIterator( );	}