@Test
public void testBuildLockRequest() {
doInJPA(
this::entityManagerFactory,
entityManager -> {
log.info("testBuildLockRequest");
Person person = new Person("John Doe");
Phone home = new Phone("123-456-7890");
Phone office = new Phone("098-765-4321");
person.getPhones().add(home);
person.getPhones().add(office);
entityManager.persist(person);
entityManager.flush();
});
doInJPA(
this::entityManagerFactory,
entityManager -> {
Long id = 1L;
// tag::locking-buildLockRequest-example[]
Person person = entityManager.find(Person.class, id);
Session session = entityManager.unwrap(Session.class);
session
.buildLockRequest(LockOptions.NONE)
.setLockMode(LockMode.PESSIMISTIC_READ)
.setTimeOut(LockOptions.NO_WAIT)
.lock(person);
// end::locking-buildLockRequest-example[]
});
doInJPA(
this::entityManagerFactory,
entityManager -> {
Long id = 1L;
// tag::locking-buildLockRequest-scope-example[]
Person person = entityManager.find(Person.class, id);
Session session = entityManager.unwrap(Session.class);
session
.buildLockRequest(LockOptions.NONE)
.setLockMode(LockMode.PESSIMISTIC_READ)
.setTimeOut(LockOptions.NO_WAIT)
.setScope(true)
.lock(person);
// end::locking-buildLockRequest-scope-example[]
});
}
@Test
public void test5lock3() {
SessionFactory sessionFactory = HibernateUtil.getSessionFactory();
Session session = sessionFactory.openSession();
Transaction tx = session.beginTransaction();
int id = 1;
User user = (User) session.get(User.class, id);
session
.buildLockRequest(LockOptions.UPGRADE)
.setLockMode(LockMode.PESSIMISTIC_WRITE)
.setTimeOut(60000)
.lock(user);
System.out.println(user);
User user2 = (User) session.get(User.class, id);
System.out.println(user2);
tx.commit();
session.close();
}
public LockRequest buildLockRequest(LockOptions lockOptions) {
return session.buildLockRequest(lockOptions);
}
