javax.persistence
Class Persistence
java.lang.Object
javax.persistence.Persistence
public class Persistence
- extends Object
Bootstrap class that provides access to an EntityManagerFactory.
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
PERSISTENCE_PROVIDER
public static final String PERSISTENCE_PROVIDER
- See Also:
- Constant Field Values
providers
protected static final Set<PersistenceProvider> providers
Persistence
public Persistence()
createEntityManagerFactory
public static EntityManagerFactory createEntityManagerFactory(String persistenceUnitName)
- Create and return an EntityManagerFactory for the named persistence unit.
- Parameters:
persistenceUnitName
- The name of the persistence unit
- Returns:
- The factory that creates EntityManagers configured according to the specified persistence unit
createEntityManagerFactory
public static EntityManagerFactory createEntityManagerFactory(String persistenceUnitName,
Map properties)
- Create and return an EntityManagerFactory for the named persistence unit using the given properties.
- Parameters:
persistenceUnitName
- The name of the persistence unitproperties
- Additional properties to use when creating the factory. The values of these properties override
any values that may have been configured elsewhere
- Returns:
- The factory that creates EntityManagers configured according to the specified persistence unit