code: private String getSelfString()
      {
          String queue_string = " {" + new_line;
          if (restriction != null)
              queue_string += "  restriction: " + restriction.toString() + new_line;
          if (index != null)
              queue_string += "  index: " + index.getClass().getName() + new_line;
          if (!implementation_options.isEmpty())
              queue_string += "  implementation options: " + implementation_options.toString() + new_line;
          if (process_builder_class != null)
              queue_string += "  process builder: " + process_builder_class.getName() + new_line;
          if (process_server_class != null)
              queue_string += "  process server: " + process_server_class.getName() + new_line;
          if (default_occurence != null)
              queue_string += "  default occurrence: " + default_occurence.toString() + new_line;
          if (default_visibility != null)
              queue_string += "  default visibility: " + default_visibility.getClass().getName() + new_line;
          if (default_access != null)
              queue_string += "  default access: " + default_access.getClass().getName() + new_line;
          if (default_resilience != null)
              queue_string += "  default resilience: " + default_resilience.toString() + new_line;
          if (default_output != null)
              queue_string += "  default output: " + default_output.getClass().toString() + new_line;
          return queue_string + "}" + new_line;
      }
docs: Get the unique String for this Queue.