public CustomerPhone readCustomerPhoneById(Long customerPhoneId) {
   return (CustomerPhone)
       em.find(
           entityConfiguration.lookupEntityClass(CustomerPhone.class.getName()), customerPhoneId);
 }
 public OfferCode readOfferCodeById(Long offerCodeId) {
   return (OfferCode)
       em.find(entityConfiguration.lookupEntityClass(OfferCode.class.getName()), offerCodeId);
 }