如何在JPA中使用NamedQuery

Question

I am trying to use NamedQuery in JPA as per example i have defined something like that:

@Stateless
@Local
@Slf4j
@NamedQuery(
    name="findAllCustomer",
    query="select p.owner from UserInfo p where p.customer.id= :cusId")
public class CustomerDAOBean extends GenericDAO<Integer, Person>{

public List<Person> findAllCustomers(Integer customerId) {

      return  em.createNamedQuery("findAllCustomer")
                .setParameter("cusId",customerId)
                .getResultList();
}

but getting exception like this:

Caused by: java.lang.IllegalArgumentException: NamedQuery of name: findAllCustomer not found.

Answer 1

我建议在实体类中编写它