Bug 211703 Support muti-view on report item.
As title described.
xtab/org.eclipse.birt.report.item.crosstab.core/src/org/eclipse/birt/report/item/crosstab/core/de/CrosstabReportItemHandle.java
implements
			ICrosstabReportItemConstants,
			ICrosstabConstants
{
	/**
	 * 
	 * @param handle
	 */
	CrosstabReportItemHandle( DesignElementHandle handle )
	{
		super( handle );
	}
	/**
	 * Gets the dimension value handle for the row where the given cell resides.
	 * 
	 * @param cell
	 *            the cell which the row contains
	 * @return the dimension value handle for the row where the cell resides
	 * @throws CrosstabException
	 */
	public org.eclipse.birt.report.model.api.DimensionHandle getRowHeight(
			CrosstabCellHandle cell ) throws CrosstabException
	{
		cell = CrosstabModelUtil.locateRowHeightCell( this, cell );
		if ( cell != null )
		{
			return cell.getHeight( );
		}