public static ActivityService getActivityService() {
   return CacheFactory.getProxyCacheObject(ActivityServiceImpl.class);
 }
 public static ObtainRewardRuleService getObtainRewardRuleService() {
   return CacheFactory.getProxyCacheObject(ObtainRewardRuleServiceImpl.class);
 }
 public static RewardTypeService getRewardTypeService() {
   return CacheFactory.getProxyCacheObject(RewardTypeServiceImpl.class);
 }
 public static ExchangeRewardRuleService getExchangeRewardRuleService() {
   return CacheFactory.getProxyCacheObject(ExchangeRewardRuleServiceImpl.class);
 }