Bug 182895 Support sort on Level attribute.
Currently in OLAP engine we only support sort on level key value. We should go ahead to support sort on level attribute value.
data/org.eclipse.birt.data.tests/test/org/eclipse/birt/data/engine/olap/api/CubeFeaturesTest.java
*/
	public void testAggrFilter( ) throws Exception
	{
		ICubeQueryDefinition cqd = new CubeQueryDefinition( cubeName);
		IEdgeDefinition columnEdge = cqd.createEdge( ICubeQueryDefinition.COLUMN_EDGE );
		IEdgeDefinition rowEdge = cqd.createEdge( ICubeQueryDefinition.ROW_EDGE );
		IDimensionDefinition dim1 = columnEdge.createDimension( "dimension1" );
		IHierarchyDefinition hier1 = dim1.createHierarchy( "dimension1" );
		ILevelDefinition level11 = hier1.createLevel( "level11" );
		ILevelDefinition level12 = hier1.createLevel( "level12" );
		ILevelDefinition level13 = hier1.createLevel( "level13" );
		IDimensionDefinition dim2 = rowEdge.createDimension( "dimension2" );
		IHierarchyDefinition hier2 = dim2.createHierarchy( "dimension2" );
		ILevelDefinition level21 = hier2.createLevel( "level21" );
		
		createSortTestBindings( cqd );
		
		
		CubeFilterDefinition filter1 = new CubeFilterDefinition( new ScriptExpression("data[\"rowGrandTotal\"] > 420"));
		filter1.setAxisQualifierLevels( null );
		filter1.setAxisQualifierValues( null );
		filter1.setTargetLevel( level21 );
				
		
		CubeFilterDefinition filter2 = new CubeFilterDefinition( new ScriptExpression("data[\"city_year_total\"] < 65"));
		filter2.setAxisQualifierLevels( new ILevelDefinition[]{level21} );
		filter2.setAxisQualifierValues( new Object[]{"2002"} );
		filter2.setTargetLevel( level12 );