public interface EntityManagerManager
EntityManager
s for the current thread.
An EntityManager
is created as needed and closed at the end of each request.
The implementation of this service is per-thread.Modifier and Type | Method and Description |
---|---|
EntityManager |
getEntityManager(String persistenceUnitName)
Gets the active EntityManager for this request, creating it as necessary.
|
Map<String,EntityManager> |
getEntityManagers()
Gets all active EntityManagers for this request, creating them as necessary.
|
EntityManager getEntityManager(String persistenceUnitName)
persistenceUnitName
- the name of a persistence unit as defined in persistence.xml
Map<String,EntityManager> getEntityManagers()
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