*
     * @param params The search request parameters
     * @param cursor Function to process each document in the result set
     * @param userBean Optional user information for permission checking
     * @return Total number of documents processed
     */
    public long scrollSearch(final SearchRequestParams params, final BooleanFunction<Map<String, Object>> cursor,
            final OptionalThing<FessUserBean> userBean) {

     * @param condition the search condition
     * @param cursor    the cursor function to process each hit
     * @return the number of documents processed
     * @throws InvalidQueryException if the query is invalid
     */
    public long scrollSearch(final String index, final SearchCondition<SearchRequestBuilder> condition,
            final BooleanFunction<Map<String, Object>> cursor) {

    it.remove();
    // After this remove, 400 has moved up and 20 down past cursor
    assertTrue("Heap is not intact after remove", mmHeap.isIntact());
    assertEquals((Integer) 10, it.next());
    assertEquals((Integer) 3, it.next());
    it.remove();
    // After this remove, 400 moved down again and 500 up past the cursor
    assertTrue("Heap is not intact after remove", mmHeap.isIntact());

    while (true) {
      Waiter pred = null;
      Waiter curr = waitersField;
      if (curr == Waiter.TOMBSTONE) {
        return; // give up if someone is calling complete
      }
      Waiter succ;
      while (curr != null) {
        succ = curr.next;
        if (curr.thread != null) { // we aren't unlinking this node, update pred.
          pred = curr;

    while (true) {
      Waiter pred = null;
      Waiter curr = waitersField;
      if (curr == Waiter.TOMBSTONE) {
        return; // give up if someone is calling complete
      }
      Waiter succ;
      while (curr != null) {
        succ = curr.next;
        if (curr.thread != null) { // we aren't unlinking this node, update pred.
          pred = curr;

    for (int i = 0; i < 2; i++) {
      typesLists.add(POSSIBLE_PARAM_TYPES);
      for (List<Class<?>> curr : Lists.cartesianProduct(typesLists)) {
        allOverloads.add(
            ImmutableList.<Class<?>>builder()
                .add(predicateType)
                .add(String.class) // the format string
                .addAll(curr)
                .build());
      }
    }
    return allOverloads.build().asList();
  }

    for (int i = 0; i < 2; i++) {
      typesLists.add(POSSIBLE_PARAM_TYPES);
      for (List<Class<?>> curr : Lists.cartesianProduct(typesLists)) {
        allOverloads.add(
            ImmutableList.<Class<?>>builder()
                .add(predicateType)
                .add(String.class) // the format string
                .addAll(curr)
                .build());
      }
    }
    return allOverloads.build().asList();
  }