code: @Override
    public int compare(final Orderable<T> orderable1, final Orderable<T> orderable2) {
      return orderable1.getOrder().compareTo(orderable2.getOrder());
    }
docs: Compares two Orderable objects to determine their relative order by their order property.
  
  @param orderable1 the first Orderable object in the order comparison.
  @param orderable2 the second Orderable object in the order comparison.
  @return an integer value indicating one Orderable object's order relative to another Orderable object.