/**
  * Gets a list of {@link EventOptionRuleEntity}s.
  *
  * @return {@link Object}
  */
 @RequestMapping(path = "/event_option_rules", method = RequestMethod.GET)
 public Object getAll() {
   Iterable<EventOptionRuleEntity> iter = repository.findAll();
   ArrayList<EventOptionRuleEntity> list = new ArrayList<EventOptionRuleEntity>();
   Iterator<EventOptionRuleEntity> iterator = iter.iterator();
   while (iterator.hasNext()) {
     list.add(iterator.next());
   }
   return list;
 }