java - @PersistenceContext(type = PersistenceContextType.EXTENDED) private EntityManager entityManager;

Question

To tell EntityManager to use extended-scoped persistence context, we need to apply the type attribute of @PersistenceContext:

@PersistenceContext(type = PersistenceContextType.EXTENDED)
private EntityManager entityManager;

private EntityManager entityManager; In the stateless session bean, the extended persistence context in one component is completely unaware of any persistence context of another component. This is true even if both are in same the same transaction.

Let's say we persist some entity in a method of Component A, which is running in a transaction. We then call some method of Component B. In Component B's method persistence context, we will not find the entity we persisted previously in the method of Component A.

Question:

can you explain the last paragraph to me, or give an example code

question from:https://stackoverflow.com/questions/65949842/persistencecontexttype-persistencecontexttype-extended-private-entitymanage

Answer 1

Waitting for answers