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org.eclipse.persistence.jpa.osgi
Class PersistenceProvider

java.lang.Object
org.eclipse.persistence.jpa.PersistenceProvider
org.eclipse.persistence.jpa.osgi.PersistenceProvider

All Implemented Interfaces:

javax.persistence.spi.PersistenceProvider, javax.persistence.spi.ProviderUtil

public class PersistenceProvider

extends PersistenceProvider

EclipseLink JPA provider for use in OSGI Environments

Field Summary

private static java.util.Map<Bundle,java.lang.String[]>	bundleToPUs
static java.lang.String	EQUINOX_INITIALIZER_NAME
protected java.lang.String	initializerClassName
private static java.lang.String	ORG_ECLIPSE_PERSISTENCE_CORE
private java.util.Map<java.lang.String,java.lang.ClassLoader>	puClassLoaders
private static java.util.Map<java.lang.String,Bundle>	puToBundle

Constructor Summary

PersistenceProvider()

PersistenceProvider(java.lang.String initializerClassName)

Method Summary

static void	addBundle(Bundle bundle, java.lang.String[] persistenceUnitNames) Add a bundle to the list of bundles managed by this persistence provider The bundle is indexed so it's classloader can be accessed
javax.persistence.EntityManagerFactory	createContainerEntityManagerFactory(javax.persistence.spi.PersistenceUnitInfo info, java.util.Map map) Called by the container when an EntityManagerFactory is to be created.
java.lang.ClassLoader	getClassLoader(java.lang.String persistenceUnitName, java.util.Map properties) Answer the ClassLoader to use to create an EntityManager.
org.eclipse.persistence.internal.jpa.deployment.JPAInitializer	getInitializer(java.lang.String emName, java.util.Map m) Get the initializer class Here we will attempt to build an EquinoxInitializer.
static boolean	includesBundle(Bundle bundle)
static void	removeBundle(Bundle bundle) Removed a bundle from the list of bundles managed by this persistence provider This typically happens on deactivation.

Methods inherited from class org.eclipse.persistence.jpa.PersistenceProvider

createEntityManagerFactory, getProviderUtil, isLoaded, isLoadedWithoutReference, isLoadedWithReference

Methods inherited from class java.lang.Object

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

Field Detail

initializerClassName

protected java.lang.String initializerClassName

EQUINOX_INITIALIZER_NAME

public static final java.lang.String EQUINOX_INITIALIZER_NAME

See Also:

Constant Field Values

ORG_ECLIPSE_PERSISTENCE_CORE

private static final java.lang.String ORG_ECLIPSE_PERSISTENCE_CORE

See Also:

Constant Field Values

puToBundle

private static java.util.Map<java.lang.String,Bundle> puToBundle

bundleToPUs

private static java.util.Map<Bundle,java.lang.String[]> bundleToPUs

puClassLoaders

private java.util.Map<java.lang.String,java.lang.ClassLoader> puClassLoaders

Constructor Detail

PersistenceProvider

public PersistenceProvider()

PersistenceProvider

public PersistenceProvider(java.lang.String initializerClassName)

Method Detail

createContainerEntityManagerFactory

public javax.persistence.EntityManagerFactory createContainerEntityManagerFactory(javax.persistence.spi.PersistenceUnitInfo info,
                                                                                  java.util.Map map)

Description copied from class: PersistenceProvider

Called by the container when an EntityManagerFactory is to be created.

Specified by:

createContainerEntityManagerFactory in interface javax.persistence.spi.PersistenceProvider

Overrides:

createContainerEntityManagerFactory in class PersistenceProvider

Parameters:

info - Metadata for use by the persistence provider

Returns:

EntityManagerFactory for the persistence unit specified by the metadata

getInitializer

public org.eclipse.persistence.internal.jpa.deployment.JPAInitializer getInitializer(java.lang.String emName,
                                                                                     java.util.Map m)

Get the initializer class Here we will attempt to build an EquinoxInitializer. It will only be available if the org.eclipse.persistence.jpa.equinox fragment is available. Else, we will return a standard OSGi initializer.

Overrides:

getInitializer in class PersistenceProvider

Returns:

addBundle

public static void addBundle(Bundle bundle,
                             java.lang.String[] persistenceUnitNames)

Add a bundle to the list of bundles managed by this persistence provider The bundle is indexed so it's classloader can be accessed

Parameters:

bundle -

persistenceUnitNames -

removeBundle

public static void removeBundle(Bundle bundle)

Removed a bundle from the list of bundles managed by this persistence provider This typically happens on deactivation.

Parameters:

bundle -

getClassLoader

public java.lang.ClassLoader getClassLoader(java.lang.String persistenceUnitName,
                                            java.util.Map properties)

Answer the ClassLoader to use to create an EntityManager. The result is a CompositeClassLoader capable of loading classes from the optionally provided ClassLoader, the bundle that provides the persistence unit (i.e., contains the persistence.xml, and EclipseLink classes (since the persistence unit bundle may not have an explicit dependency on EclipseLink).

Overrides:

getClassLoader in class PersistenceProvider

Parameters:

persistenceUnitName -

properties -

Returns:

ClassLoader

includesBundle

public static boolean includesBundle(Bundle bundle)

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