}

  /**
   * Gets an iterator representing an immutable snapshot of all subscribers to the given event at
   * the time this method is called.
   */
  Iterator<Subscriber> getSubscribers(Object event) {
    ImmutableSet<Class<?>> eventTypes = flattenHierarchy(event.getClass());

    List<Iterator<Subscriber>> subscriberIterators =
        Lists.newArrayListWithCapacity(eventTypes.size());

                val = interpolate(org);
                if (org != val) {
                    mailingList.setName(val);
                }
                // Subscribe
                org = mailingList.getSubscribe();
                val = interpolate(org);
                if (org != val) {
                    mailingList.setSubscribe(val);
                }
                // Unsubscribe