Cannot inject RESOURCE_LOCAL container managed EntityManager using @PersistenceContext

Question

I am using JBoss AS 7.1.1 and able to configure a new JTA datasource and wire it to my EJB using

@PersistenceContext(unitName=\"TestPU\")
private EntityMana         


        

Answer 1

JTA : In Java EE environment, transactions are managed by the container & by default its JTA transaction. You can get entity manager by lookup or injection.

RESOURCE_LOCAL : In Java SE, application have to manage transactions explicitly & resource local transactions are native transactions. You have to create EntityManagerFactory & then can create entity manager from it.

As you are deploying it in application server, change the transaction-type to JTA in persistence.xml.