org.eclipse.persistence.javax.persistence.osgi

Class OSGiProviderResolver

java.lang.Object

org.eclipse.persistence.javax.persistence.osgi.OSGiProviderResolver

All Implemented Interfaces:

PersistenceProvider, PersistenceProviderResolver

public class OSGiProviderResolver
extends java.lang.Object
implements PersistenceProviderResolver, PersistenceProvider

This class acts as the ProviderResolver as well as the PersistenceProvider to the Persistence class.

Author:

mkeith

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	OSGiProviderResolver.ForwardingProviderUtil

Constructor Summary

Constructors

Constructor and Description
OSGiProviderResolver(org.osgi.framework.BundleContext ctx)

Method Summary

Modifier and Type	Method and Description
void	clearCachedProviders() Clear cache of providers.
EntityManagerFactory	createContainerEntityManagerFactory(PersistenceUnitInfo info, java.util.Map props) Called by the container when an EntityManagerFactory is to be created.
EntityManagerFactory	createEntityManagerFactory(java.lang.String unitName, java.util.Map props) Called by Persistence class when an EntityManagerFactory is to be created.
protected void	debug(java.lang.String... msgs)
java.util.List<PersistenceProvider>	getPersistenceProviders() ProviderResolver API method to get all of the providers.
ProviderUtil	getProviderUtil() Return the utility interface implemented by the persistence provider.
EntityManagerFactory	lookupEMF(java.lang.String unitName) Look up the Entity Manager Factory service based on the unit name.
EntityManagerFactory	lookupEMFBuilder(java.lang.String unitName, java.util.Map<?,?> props) Look up the Entity Manager Factory Builder service based on the unit name.
java.util.Collection<PersistenceProvider>	lookupProviders()

Methods inherited from class java.lang.Object

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

Constructor Detail

OSGiProviderResolver

public OSGiProviderResolver(org.osgi.framework.BundleContext ctx)

Method Detail

getPersistenceProviders

public java.util.List<PersistenceProvider> getPersistenceProviders()

ProviderResolver API method to get all of the providers. We will use this to hook ourselves in through the Persistence class so we can intercept all of the provider calls and redirect them to use OSGi services.

Specified by:

getPersistenceProviders in interface PersistenceProviderResolver

Returns:

list of the persistence providers available in the environment

clearCachedProviders

public void clearCachedProviders()

Description copied from interface: PersistenceProviderResolver

Clear cache of providers.

Specified by:

clearCachedProviders in interface PersistenceProviderResolver

createEntityManagerFactory

public EntityManagerFactory createEntityManagerFactory(java.lang.String unitName,
                                                       java.util.Map props)

Description copied from interface: PersistenceProvider

Called by Persistence class when an EntityManagerFactory is to be created.

Specified by:

createEntityManagerFactory in interface PersistenceProvider

Parameters:

unitName - the name of the persistence unit

props - a Map of properties for use by the persistence provider. These properties may be used to override the values of the corresponding elements in the persistence.xml file or specify values for properties not specified in the persistence.xml (and may be null if no properties are specified).

Returns:

EntityManagerFactory for the persistence unit, or null if the provider is not the right provider

createContainerEntityManagerFactory

public EntityManagerFactory createContainerEntityManagerFactory(PersistenceUnitInfo info,
                                                                java.util.Map props)

Description copied from interface: PersistenceProvider

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

Specified by:

createContainerEntityManagerFactory in interface PersistenceProvider

Parameters:

info - metadata for use by the persistence provider

props - a Map of integration-level properties for use by the persistence provider (may be null if no properties are specified). If a Bean Validation provider is present in the classpath, the container must pass the ValidatorFactory instance in the map with the key "javax.persistence.validation.factory".

Returns:

EntityManagerFactory for the persistence unit specified by the metadata

getProviderUtil

public ProviderUtil getProviderUtil()

Description copied from interface: PersistenceProvider

Return the utility interface implemented by the persistence provider.

Specified by:

getProviderUtil in interface PersistenceProvider

Returns:

ProviderUtil interface

lookupEMF

public EntityManagerFactory lookupEMF(java.lang.String unitName)

Look up the Entity Manager Factory service based on the unit name.

lookupEMFBuilder

public EntityManagerFactory lookupEMFBuilder(java.lang.String unitName,
                                             java.util.Map<?,?> props)

Look up the Entity Manager Factory Builder service based on the unit name.

Returns:

The EntityManagerFactory object that was looked up (or created from the EntityManagerFactoryBuilder)

lookupProviders

public java.util.Collection<PersistenceProvider> lookupProviders()

debug

protected void debug(java.lang.String... msgs)