Close the factory, releasing any resources that it holds. After a factory instance has been closed, all methods invoked on it will throw the IllegalStateException, except for isOpen, which will return false. Once an EntityManagerFactory has been closed, all its entity managers are considered to be in the closed state.

Create a new application-managed EntityManager. This method returns a new EntityManager instance each time it is invoked. The isOpen method will return true on the returned instance.

Create a new application-managed EntityManager with the specified Map of properties. This method returns a new EntityManager instance each time it is invoked. The isOpen method will return true on the returned instance.

Access the cache that is associated with the entity manager factory (the "second level cache").

Return an instance of CriteriaBuilder for the creation of CriteriaQuery objects.

Return an instance of Metamodel interface for access to the metamodel of the persistence unit.

Return interface providing access to utility methods for the persistence unit.

Get the properties and associated values that are in effect for the entity manager factory. Changing the contents of the map does not change the configuration in effect.

Indicates whether the factory is open. Returns true until the factory has been closed.