8.7 How to obtain the application-managed EntityManager

When the application-managed EntityManager is used, the application uses EntityManagerFactory to create EntityManager. There are two methods by which the application obtains EntityManagerFactory:

• Method of using the DI to inject EntityManagerFactory in the application field and setter method

• Method of using the JNDI from the application to look up EntityManagerFactory

The following is a description of the methods:

Organization of this section

• 8.7.1 Method of injecting EntityManagerFactory in the application

• 8.7.2 Method of looking up EntityManagerFactory from the application

• 8.7.3 Overriding the @PersistenceUnit definition using the DD

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