code: public QueryBuilder removeParentIds(final Integer id1, final Integer... ids) {
          parentIds.remove(id1);
          parentIds.removeAll(Arrays.asList(ids));
          return this;
      }
docs: Remove the provided parent IDs from the set of query constraints.
  @param id1 the first parent ID to remove
  @param ids the subsequent parent IDs to remove
  @return this