Bug 209128 BIRT Cross tab Model Change - Support for filter on measures
TO support filter condition on cross tab measure, Model changes are needed to support filter condition list on cross tab report item.
xtab/org.eclipse.birt.report.item.crosstab.core/src/org/eclipse/birt/report/item/crosstab/core/de/MeasureViewHandle.java
/**
	 * Gets the referred OLAP measure handle of this measure view.
	 * 
	 * @return the referred OLAP measure handle
	 */
	public MeasureHandle getCubeMeasure( )
	{
		return (MeasureHandle) handle.getElementProperty( MEASURE_PROP );
	}
	/**
	 * Gets name of the referred OLAP measure handle in this measure view.
	 * 
	 * @return name of the referred OLAP measure handle
	 */
	public String getCubeMeasureName( )
	{
		return handle.getStringProperty( MEASURE_PROP );
	}
	/**
	 * Gets the data type of this measure view. It is identical with the data
	 * type set in the referred cube measure element.
	 * 
	 * @return
	 */
	public String getDataType( )
	{
		MeasureHandle cubeMeasure = getCubeMeasure( );
		return cubeMeasure == null ? null : cubeMeasure.getDataType( );
	}
	/**