org.osgi.service.jpa

Interface EntityManagerFactoryBuilder

@ProviderType
public interface EntityManagerFactoryBuilder

This service interface offers JPA clients the ability to create instances of EntityManagerFactory for a given named persistence unit. A service instance will be created for each named persistence unit and can be filtered by comparing the value of the osgi.unit.name property containing the persistence unit name. This service is used specifically when the caller wants to pass in factory-scoped properties as arguments. If no properties are being used in the creation of the EntityManagerFactory then the basic EntityManagerFactory service should be used.

Field Summary

Fields

Modifier and Type	Field and Description
static String	JPA_CAPABILITY_NAME The name of the JPA extender capability.
static String	JPA_SPECIFICATION_VERSION The version of the extender capability for the JPA Service specification
static String	JPA_UNIT_NAME The name of the persistence unit.
static String	JPA_UNIT_PROVIDER The class name of the provider that registered the service and implements the JPA javax.persistence.PersistenceProvider interface.
static String	JPA_UNIT_VERSION The version of the persistence unit bundle.

Method Summary

Modifier and Type	Method and Description
javax.persistence.EntityManagerFactory	createEntityManagerFactory(Map<String,Object> props) Return an EntityManagerFactory instance configured according to the properties defined in the corresponding persistence descriptor, as well as the properties passed into the method.
Bundle	getPersistenceProviderBundle() This method returns the Bundle which provides the PersistenceProvider implementation that is used by this EntityManagerFactoryBuilder.
String	getPersistenceProviderName() This method returns the name of the PersistenceProvider implementation that is used by this EntityManagerFactoryBuilder.

Field Detail

JPA_UNIT_NAME

static final String JPA_UNIT_NAME

The name of the persistence unit.

See Also:

Constant Field Values

JPA_UNIT_VERSION

static final String JPA_UNIT_VERSION

The version of the persistence unit bundle.

See Also:

Constant Field Values

JPA_UNIT_PROVIDER

static final String JPA_UNIT_PROVIDER

The class name of the provider that registered the service and implements the JPA javax.persistence.PersistenceProvider interface.

See Also:

Constant Field Values

JPA_CAPABILITY_NAME

static final String JPA_CAPABILITY_NAME

The name of the JPA extender capability.

Since:

1.1

See Also:

Constant Field Values

JPA_SPECIFICATION_VERSION

static final String JPA_SPECIFICATION_VERSION

The version of the extender capability for the JPA Service specification

Since:

1.1

See Also:

Constant Field Values

Method Detail

createEntityManagerFactory

javax.persistence.EntityManagerFactory createEntityManagerFactory(Map<String,Object> props)

Return an EntityManagerFactory instance configured according to the properties defined in the corresponding persistence descriptor, as well as the properties passed into the method.

Parameters:

props - Properties to be used, in addition to those in the persistence descriptor, for configuring the EntityManagerFactory for the persistence unit.

Returns:

An EntityManagerFactory for the persistence unit associated with this service. Must not be null.

getPersistenceProviderName

String getPersistenceProviderName()

This method returns the name of the PersistenceProvider implementation that is used by this EntityManagerFactoryBuilder. The returned value will be the same as the value of the JPA_UNIT_PROVIDER service property.

Returns:

the name of the PersistenceProvider implementation

Since:

1.1

getPersistenceProviderBundle

Bundle getPersistenceProviderBundle()

This method returns the Bundle which provides the PersistenceProvider implementation that is used by this EntityManagerFactoryBuilder.

If the PersistenceProvider is provided as an OSGi service then this method must return the bundle which registered the service. Otherwise this method must return the bundle which loaded the PersistenceProvider implementation class.

Returns:

The Bundle which provides the PersistenceProvider implementation used by this EntityManagerFactoryBuilder.

Since:

1.1