@Override
  protected List<Vertex> fetchResults(int size) {
    ContainerFilter filter = new ContainerFilter();
    if (last != null) filter.setLast(last);
    filter.setSize(size);

    try {
      return Stages.getStore().addOperationGetVertices(filter).get();
    } catch (Exception e) {
      return new LinkedList<Vertex>();
    }
  }