protected IResultIterator executeOdiQuery( )
protected IResultIterator executeOdiQuery( IEventHandler eventHandler )
		protected IResultIterator executeOdiQuery( ) 				throws DataException		{			assert parentIterator != null;				ICandidateQuery cdQuery = (ICandidateQuery) odiQuery; 			cdQuery.setCandidates( parentIterator, groupLevel );			IResultIterator ret = cdQuery.execute();			parentIterator = null;						return ret;		}