@Override
        public int[] getDocIds() {
            return Arrays.stream(entries).mapToInt(e -> e.docId).toArray();
        }
@author <a href="mailto:magnarn@yahoo-inc.com">Magnar Nedland</a>
@author bjorncs
predicate-search/src/test/java/com/yahoo/search/predicate/index/PredicateSearchTest.java