org.osgi.service.transaction.control.jpa

Interface JPAEntityManagerProviderFactory

@ProviderType
public interface JPAEntityManagerProviderFactory

A factory for creating JPAEntityManagerProvider instances

This factory can be used if the JPAEntityManagerProvider should not be a public service, for example to protect a username/password.

Field Summary

Fields

Modifier and Type	Field and Description
static String	CONNECTION_LIFETIME The property used to set the maximum amount of time that connections in the pool should remain open
static String	CONNECTION_POOLING_ENABLED The property used to determine whether connection pooling is enabled for this resource provider
static String	CONNECTION_TIMEOUT The property used to set the maximum amount of time that the pool should wait for a connection
static String	IDLE_TIMEOUT The property used to set the maximum amount of time that connections in the pool should remain idle before being closed
static String	LOCAL_ENLISTMENT_ENABLED The property used to determine whether local enlistment is enabled for this resource provider
static String	MAX_CONNECTIONS The property used to set the maximum number of connections that should be held in the pool
static String	MIN_CONNECTIONS The property used to set the minimum number of connections that should be held in the pool
static String	OSGI_RECOVERY_IDENTIFIER The property used to set the recovery identifier that should be used by this resource
static String	PRE_ENLISTED_DB_CONNECTION The property used to indicate that database connections will be automatically enlisted in ongoing transactions without intervention from the JPA resource provider
static String	TRANSACTIONAL_DB_CONNECTION The property used to provide a JDBCConnectionProvider to the resource provider.
static String	XA_ENLISTMENT_ENABLED The property used to determine whether XA enlistment is enabled for this resource provider
static String	XA_RECOVERY_ENABLED The property used to determine whether XA recovery is enabled for this resource provider

Method Summary

Modifier and Type	Method and Description
JPAEntityManagerProvider	getProviderFor(EntityManagerFactoryBuilder emfb, Map<String,Object> jpaProperties, Map<String,Object> resourceProviderProperties) Create a private JPAEntityManagerProvider using an EntityManagerFactoryBuilder.
JPAEntityManagerProvider	getProviderFor(javax.persistence.EntityManagerFactory emf, Map<String,Object> resourceProviderProperties) Create a private JPAEntityManagerProvider using an existing EntityManagerFactory.
void	releaseProvider(JPAEntityManagerProvider provider) Release a JPAEntityManagerProvider instance that has been created by this factory.

Field Detail

XA_ENLISTMENT_ENABLED

static final String XA_ENLISTMENT_ENABLED

The property used to determine whether XA enlistment is enabled for this resource provider

See Also:

Constant Field Values

LOCAL_ENLISTMENT_ENABLED

static final String LOCAL_ENLISTMENT_ENABLED

The property used to determine whether local enlistment is enabled for this resource provider

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Constant Field Values

XA_RECOVERY_ENABLED

static final String XA_RECOVERY_ENABLED

The property used to determine whether XA recovery is enabled for this resource provider

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Constant Field Values

CONNECTION_POOLING_ENABLED

static final String CONNECTION_POOLING_ENABLED

The property used to determine whether connection pooling is enabled for this resource provider

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Constant Field Values

CONNECTION_TIMEOUT

static final String CONNECTION_TIMEOUT

The property used to set the maximum amount of time that the pool should wait for a connection

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Constant Field Values

IDLE_TIMEOUT

static final String IDLE_TIMEOUT

The property used to set the maximum amount of time that connections in the pool should remain idle before being closed

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Constant Field Values

CONNECTION_LIFETIME

static final String CONNECTION_LIFETIME

The property used to set the maximum amount of time that connections in the pool should remain open

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Constant Field Values

MIN_CONNECTIONS

static final String MIN_CONNECTIONS

The property used to set the minimum number of connections that should be held in the pool

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Constant Field Values

MAX_CONNECTIONS

static final String MAX_CONNECTIONS

The property used to set the maximum number of connections that should be held in the pool

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Constant Field Values

TRANSACTIONAL_DB_CONNECTION

static final String TRANSACTIONAL_DB_CONNECTION

The property used to provide a JDBCConnectionProvider to the resource provider. This will be converted into a DataSource by the factory, and passed to the EntityManagerFactoryBuilder using the javax.persistence.jtaDataSource property

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Constant Field Values

PRE_ENLISTED_DB_CONNECTION

static final String PRE_ENLISTED_DB_CONNECTION

The property used to indicate that database connections will be automatically enlisted in ongoing transactions without intervention from the JPA resource provider

See Also:

Constant Field Values

OSGI_RECOVERY_IDENTIFIER

static final String OSGI_RECOVERY_IDENTIFIER

The property used to set the recovery identifier that should be used by this resource

See Also:

Constant Field Values

Method Detail

getProviderFor

JPAEntityManagerProvider getProviderFor(EntityManagerFactoryBuilder emfb,
                                        Map<String,Object> jpaProperties,
                                        Map<String,Object> resourceProviderProperties)

Create a private JPAEntityManagerProvider using an EntityManagerFactoryBuilder. This call may fail with a TransactionException if the supplied configuration is invalid. Examples of invalid configuration include:

• The properties request XA enlistment, but the provider implementation only supports local enlistment
• The properties attempt to set a recovery alias, but the provider does not support recovery.

If XA transactions are used then this factory will provide configuration to ensure that the JPA Provider can participate correctly in ongoing transactions.

Parameters:

emfb -

jpaProperties - The properties to pass to the EntityManagerFactoryBuilder in order to create the underlying EntityManagerFactory and EntityManager instances

resourceProviderProperties - Configuration properties to pass to the JPA Resource Provider runtime

Returns:

A JPAEntityManagerProvider that can be used in transactions

getProviderFor

JPAEntityManagerProvider getProviderFor(javax.persistence.EntityManagerFactory emf,
                                        Map<String,Object> resourceProviderProperties)

Create a private JPAEntityManagerProvider using an existing EntityManagerFactory. This call may fail with a TransactionException if the supplied configuration is invalid. Examples of invalid configuration include:

• The properties request XA enlistment, but the provider implementation only supports local enlistment
• The properties attempt to set a recovery alias, but the provider does not support recovery.

When using this method the client is responsible for all configuration of the EntityManagerFactory. This includes setting any relevant integration plugins for ensuring that the JPA provider can participate in the ongoing transaction context.

Parameters:

emf -

resourceProviderProperties - Configuration properties to pass to the JDBC Resource Provider runtime

Returns:

A JPAEntityManagerProvider that can be used in transactions

releaseProvider

void releaseProvider(JPAEntityManagerProvider provider)

Release a JPAEntityManagerProvider instance that has been created by this factory. Released instances are eligible to be shut down and have any remaining open connections closed.

Note that all JPAEntityManagerProvider instances created by this factory service are implicitly released when the factory service is released by this bundle.

Parameters:

provider -

Throws:

IllegalArgumentException - if the supplied resource was not created by this factory service instance.