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