Question

Is it possible to use PESIMISTIC lock option using Spring JpaTemplate methods?

I know that PESIMISTIC lock can be performed using EntityManager’s methods e.g.

Account acc = em.find(Account.class, 123);

em.lock(acc, PESIMISTIC);

Answer 1

There’s nothing specifically on JpaTemplate for this, but if you need access to it, you can use JpaTemplate.execute(), which takes a callback which is supplied with the EntityManager, and you can do anything you like within that callback.

A better solution, depending on your situation, might be to use Spring’s transaction layer. If you annotate your DAO with @Transactional (see previous link), the JpaTransactionManager should manage entity locking for you, depending on the isolation attribute of the @Transactional attribute.