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Stephan van Hulst
Object Relational Mapping
Container OR Application Managed EntityManager s
Ravi Kiran Va
posted 10 years ago
This is for ConatainerManaged
@PersistenceContext EntityManager em;
This is for Application Managed
@PersistenceUnit EntityManagerFactory emf;
Then, obtain an EntityManager
Please tell me why there are two types of FntityManagers and what is best choice ??
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EntityTransaction.begin(); and EntityTransaction.commit();
Container-Manager EntityManager - Automatically joins JTA ?
Can I say an entity manager injected into session bean must be container managed?
EJB3 in Action - JTA transaction within a application-managed EntityManager within a container
EntityManager types in JPA