public interface EntityManagerFactory
EntityManagerFactory
interface is used
by the application to obtain an application-managed entity
manager. When the application has finished using the entity
manager factory, and/or at application shutdown, the
application should close the entity manager factory.
Once an EntityManagerFactory
has been closed, all its entity
managers are considered to be in the closed state.Modifier and Type | Method and Description |
---|---|
void |
close()
Close the factory, releasing any resources that it holds.
|
EntityManager |
createEntityManager()
Create a new EntityManager.
|
EntityManager |
createEntityManager(java.util.Map map)
Create a new EntityManager with the specified Map of
properties.
|
boolean |
isOpen()
Indicates whether or not this factory is open.
|
EntityManager createEntityManager()
EntityManager createEntityManager(java.util.Map map)
void close()
boolean isOpen()