class ProductCartService extends WebService {

   @PreAuthorize("hasRole('ROLE_DOWNLOAD')")
   @Transactional(readOnly = false, propagation = Propagation.REQUIRED)
   public void deleteCartOfUser(String uuid)
   {
      ProductCart cart = getCartOfUser(uuid);
      if (cart != null)
      {
         productCartDao.delete(cart);
      }
   }

}