initialize( dataEngine, dataSetDesign, appContext );
setCurrentDataSet( dataSetDesign );       if ( doesLoadFromCache( ) == false ) initialize( dataEngine, appContext );
		protected IQuery createOdiQuery( ) throws DataException		{			//Lazzily initialize the PreparedJointDataSourceQuery here.			//The creation of JointDataSetQuery need IResultClass instance			//as input argment.We have to create ResultIterator instance 			//in method "initialize()" for this is the only way to acquire			//IResultClass instances.			initialize( dataEngine, dataSetDesign, appContext );			return new JointDataSetQuery( resultClass );	 	}