hibernate批量删除写法

private static final String DELETE_USER_NAME=
         "DELETE FROM User x WHERE x.name in (:usernames) and x.id = userId";

@Override
   public boolean deleteUserName(List<String> users, Integer userID) {

      if (username!= null && !username.isEmpty()) {
         Number result = em.createQuery(DELETE_USER_NAME)
               .setParameter("usernames",users)
               .setParameter("id", userID)
               .executeUpdate();

         return ((result.intValue() == 1) ? true : false);
      }
               else
       return false;
   }