Package javax.persistence

Class Persistence

java.lang.Object

javax.persistence.Persistence

public class Persistence
extends java.lang.Object

Bootstrap class that is used to obtain EntityManagerFactory references.

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	PERSISTENCE_PROVIDER
(package private) static java.lang.String	PERSISTENCE_PROVIDER_PROPERTY
(package private) static java.lang.String	PERSISTENCE_PROVIDER_SERVICE
protected static java.util.Set<PersistenceProvider>	providers

Constructor Summary

Constructors

Constructor	Description
Persistence()

Method Summary

Modifier and Type	Method	Description
static EntityManagerFactory	createEntityManagerFactory(java.lang.String persistenceUnitName)	Create and return an EntityManagerFactory for the named persistence unit.
static EntityManagerFactory	createEntityManagerFactory(java.lang.String persistenceUnitName, java.util.Map properties)	Create and return an EntityManagerFactory for the named persistence unit using the given properties.
(package private) static EntityManagerFactory	createFactory(java.lang.String providerName, java.lang.String persistenceUnitName, java.util.Map properties)
(package private) static java.lang.String	getProviderName(java.net.URL url)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

providers

protected static final java.util.Set<PersistenceProvider> providers

PERSISTENCE_PROVIDER

public static final java.lang.String PERSISTENCE_PROVIDER

See Also:

Constant Field Values

PERSISTENCE_PROVIDER_PROPERTY

static final java.lang.String PERSISTENCE_PROVIDER_PROPERTY

See Also:

Constant Field Values

PERSISTENCE_PROVIDER_SERVICE

static final java.lang.String PERSISTENCE_PROVIDER_SERVICE

Constructor Detail

Persistence

public Persistence()

Method Detail

createEntityManagerFactory

public static EntityManagerFactory createEntityManagerFactory(java.lang.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(java.lang.String persistenceUnitName,
                                                              java.util.Map properties)

Create and return an EntityManagerFactory for the named persistence unit using the given properties.

Parameters:

persistenceUnitName - The name of the persistence unit

properties - 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.

getProviderName

static java.lang.String getProviderName(java.net.URL url)
                                 throws java.io.IOException

Throws:

java.io.IOException

createFactory

static EntityManagerFactory createFactory(java.lang.String providerName,
                                          java.lang.String persistenceUnitName,
                                          java.util.Map properties)
                                   throws PersistenceException

Throws:

PersistenceException