IResultIterator ret = cdQuery.execute();
IResultIterator ret = cdQuery.execute( 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;		}