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public interface EntityManagerManager
Manages EntityManager
s for the current thread.
An EntityManager
is created as needed and closed at the end of each request.
Method Summary | |
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javax.persistence.EntityManager |
getEntityManager(java.lang.String persistenceUnitName)
Gets the active EntityManager for this request, creating it as necessary. |
java.util.Map<java.lang.String,javax.persistence.EntityManager> |
getEntityManagers()
Gets all active EntityManager s for this request, creating them as necessary. |
Method Detail |
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javax.persistence.EntityManager getEntityManager(java.lang.String persistenceUnitName)
EntityManager
for this request, creating it as necessary.
persistenceUnitName
- the name of a persistence unit as defined in persistence.xml
- Returns:
- EntityManager for the persistence unit,
java.util.Map<java.lang.String,javax.persistence.EntityManager> getEntityManagers()
EntityManager
s for this request, creating them as necessary.
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