org.hibernate.testing.jta
Class JtaAwareConnectionProviderImpl

java.lang.Object
  org.hibernate.testing.jta.JtaAwareConnectionProviderImpl

All Implemented Interfaces:

Serializable, ConnectionProvider, Service, Configurable, Stoppable, Wrapped

public class JtaAwareConnectionProviderImpl
extends Object
implements ConnectionProvider, Configurable, Stoppable

A DataSource implementation intended for testing Hibernate/JTA interaction. In that limited scope we only ever have one single resource (the database connection) so we do not at all care about full-blown XA semantics. This class behaves accordingly. This class also assumes usage of and access to JBossTS/Arjuna.

See Also:

Serialized Form

Nested Class Summary

static class

JtaAwareConnectionProviderImpl.XAResourceWrapper

Constructor Summary

JtaAwareConnectionProviderImpl()

Method Summary

void	closeConnection(Connection conn) Release a connection from Hibernate use.
void	configure(Map configurationValues) Configure the service.
protected Transaction	findCurrentTransaction()
Connection	getConnection() Obtains a connection for Hibernate use according to the underlying strategy of this provider.
boolean	isUnwrappableAs(Class unwrapType) Can this wrapped service be unwrapped as the indicated type?
void	stop() Stop phase notification
boolean	supportsAggressiveRelease() Does this connection provider support aggressive release of JDBC connections and re-acquisition of those connections (if need be) later? This is used in conjunction with AvailableSettings.RELEASE_CONNECTIONS to aggressively release JDBC connections.
<T> T	unwrap(Class<T> unwrapType) Unproxy the service proxy

Methods inherited from class java.lang.Object

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

Constructor Detail

JtaAwareConnectionProviderImpl

public JtaAwareConnectionProviderImpl()

Method Detail

configure

public void configure(Map configurationValues)

Description copied from interface: Configurable

Configure the service.

Specified by:

configure in interface Configurable

Parameters:

configurationValues - The configuration properties.

stop

public void stop()

Description copied from interface: Stoppable

Stop phase notification

Specified by:

stop in interface Stoppable

getConnection

public Connection getConnection()
                         throws SQLException

Description copied from interface: ConnectionProvider

Obtains a connection for Hibernate use according to the underlying strategy of this provider.

Specified by:

getConnection in interface ConnectionProvider

Returns:

The obtained JDBC connection

Throws:

SQLException - Indicates a problem opening a connection

closeConnection

public void closeConnection(Connection conn)
                     throws SQLException

Description copied from interface: ConnectionProvider

Release a connection from Hibernate use.

Specified by:

closeConnection in interface ConnectionProvider

Parameters:

conn - The JDBC connection to release

Throws:

SQLException - Indicates a problem closing the connection

supportsAggressiveRelease

public boolean supportsAggressiveRelease()

Description copied from interface: ConnectionProvider

Does this connection provider support aggressive release of JDBC connections and re-acquisition of those connections (if need be) later?

This is used in conjunction with AvailableSettings.RELEASE_CONNECTIONS to aggressively release JDBC connections. However, the configured ConnectionProvider must support re-acquisition of the same underlying connection for that semantic to work.

Typically, this is only true in managed environments where a container tracks connections by transaction or thread. Note that JTA semantic depends on the fact that the underlying connection provider does support aggressive release.

Specified by:

supportsAggressiveRelease in interface ConnectionProvider

Returns:

true if aggressive releasing is supported; false otherwise.

findCurrentTransaction

protected Transaction findCurrentTransaction()

isUnwrappableAs

public boolean isUnwrappableAs(Class unwrapType)

Description copied from interface: Wrapped

Can this wrapped service be unwrapped as the indicated type?

Specified by:

isUnwrappableAs in interface Wrapped

Parameters:

unwrapType - The type to check.

Returns:

True/false.

unwrap

public <T> T unwrap(Class<T> unwrapType)

Description copied from interface: Wrapped

Unproxy the service proxy

Specified by:

unwrap in interface Wrapped

Parameters:

unwrapType - The java type as which to unwrap this instance.

Returns:

The unwrapped reference