Bug 207825 Crosstab gives wrong default for Totals on Count
xtab/org.eclipse.birt.report.item.crosstab.core/src/org/eclipse/birt/report/item/crosstab/core/de/CrosstabReportItemHandle.java
PropertyHandle headerHandle = handle.getPropertyHandle( HEADER_PROP );
		if ( headerHandle != null && headerHandle.getContentCount( ) > 0 )
		{
			return (CrosstabCellHandle) CrosstabUtil
					.getReportItem( headerHandle.getContent( 0 ) );
		}
		return null;
	}
	/**
	 * Gets the referred OLAP cube element.
	 * 
	 * @return the referred OLAP cube element
	 */
	public CubeHandle getCube( )
	{
		return ( (ReportItemHandle) handle ).getCube( );
	}
	/**
	 * 
	 * @param cube
	 * @throws SemanticException
	 */
	public void setCube( CubeHandle cube ) throws SemanticException
	{
		handle.setProperty( IReportItemModel.CUBE_PROP, cube );
	}
	/**
	 * Gets the name of referred OLAP cube element.
	 * 
	 * @return name of the referred OLAP cube element.