final SearchResponse response =
                client.prepareSearch().setIndices(index).setQuery(query).setSize(0).execute().actionGet(settings.getSearchTimeout());

        return response.getHits().getTotalHits().value();
    }

    /**
     * A mutable flag to signal stopping a scroll operation.
     */
    public static class StopFlag {
        private boolean stopped = false;

        /**

                .setSize(0)
                .setTrackTotalHits(true)
                .execute()
                .actionGet(settings.getSearchTimeout());
        return response.getHits().getTotalHits().value();
    }

        if (esCb.getPreference() != null) {
            builder.setPreference(esCb.getPreference());
        }
        return (int) getSearchHits(esCb.build(builder).execute().actionGet(searchTimeout)).getTotalHits().value();
    }

    @Override
    protected <RESULT extends ENTITY> RESULT delegateSelectEntity(final ConditionBean cb, final Class<? extends RESULT> entityType) {

                    .actionGet(settings.getSearchTimeout());
            String scrollId = response.getScrollId();

            final Map<String, Object>[] array = new Map[(int) response.getHits().getTotalHits().value()];

            int count = 0;
            try {
                while (scrollId != null) {
                    final SearchHit[] hits = response.getHits().getHits();

        if (esCb.getPreference() != null) {
            builder.setPreference(esCb.getPreference());
        }
        return (int) getSearchHits(esCb.build(builder).execute().actionGet(searchTimeout)).getTotalHits().value();
    }

    @Override
    protected <RESULT extends ENTITY> RESULT delegateSelectEntity(final ConditionBean cb, final Class<? extends RESULT> entityType) {

                .setQuery(queryBuilder)
                .setTrackTotalHits(true)
                .execute()
                .actionGet(suggestSettings.getSearchTimeout());
        return searchResponse.getHits().getTotalHits().value();
    }

    private String getSearchAlias(final String index) {
        return index;
    }

    private String getUpdateAlias(final String index) {
        return index + ".update";

                .setQuery(QueryBuilders.termQuery("field", "value1"))
                .execute()
                .actionGet()
                .getHits()
                .getTotalHits()
                .value();
        assertEquals(0, count);
    }

    @Test
    public void testDeleteByQueryWithNoMatches() {
        // Test delete with query that matches nothing

                .setSize(0)
                .setTrackTotalHits(true)
                .execute()
                .actionGet(fessConfig.getIndexSearchTimeout());
        final TotalHits totalHits = countResponse.getHits().getTotalHits();
        if (totalHits != null) {
            return totalHits.value();
        }
        return 0;
    }

    /**
     * Deletes all documents associated with the specified session ID.
     *

            final SearchRequestBuilder builder = c.prepareSearch(index).setSize(0).setTrackTotalHits(true);
            callback.accept(builder);
            return builder.execute();
        }).getHits().getTotalHits();
        return totalHits != null ? (int) totalHits.value() : 0;
    }

    /**
     * Retrieves a single document from the OpenSearch index by session ID and URL.
     *

            return target;
        }
    }

    private static class TestOpenSearchResultList extends OpenSearchResultList<OpenSearchAccessResult> {
        @Override
        public long getTotalHits() {
            return 0;
        }
    }

    private static class TestAccessResult implements AccessResult<String> {
        @Override