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
}
			stack.commit( );
		}
		return (AggregationCellHandle) CrosstabUtil
				.getReportItem( aggregationCell );
	}
	/**
	 * 
	 * @param rowDimension
	 *            qualified name of the row dimension
	 * @param rowLevel
	 *            qualified name of the row level
	 * @param colDimension
	 *            qualified name of the column dimension
	 * @param colLevel
	 *            qualifed name of the column level
	 * @throws SemanticException
	 */
	public void removeAggregation( String rowDimension, String rowLevel,
			String colDimension, String colLevel ) throws SemanticException
	{
		AggregationCellHandle cell = getAggregationCell( rowDimension,
				rowLevel, colDimension, colLevel );
		if ( cell != null )
		{
			cell.handle.drop( );
		}
	}
	/**
	 * Finds an aggregation cell which uses the given row/column dimension and