if ( filter( TREE_NAME_DATASETS, filterList ) )
if ( filter( TREE_NAME_CONTEXT, filterList ) )
	public void createFilteredExpressionTree( List dataSetList, List filterList )	{		if ( filter( TREE_NAME_DATASETS, filterList ) )		{			createDataSetsTree( dataSetList );		}		if ( filter( TREE_NAME_PARAMETERS, filterList ) )		{			createParamtersTree( );		}		if ( filter( TREE_NAME_NATIVE_OBJECTS, filterList ) )		{			createNativeObjectsTree( );		}		if ( filter( TREE_NAME_BIRT_OBJECTS, filterList ) )		{			createBirtObjectsTree( );		}		if ( filter( TREE_NAME_OPERATORS, filterList ) )		{			createOperatorsTree( );		}	}