org.hibernate.service.jdbc.connections.internal
Class ProxoolConnectionProvider

java.lang.Object
  org.hibernate.service.jdbc.connections.internal.ProxoolConnectionProvider

All Implemented Interfaces:

Serializable, ConnectionProvider, Service, Wrapped

public class ProxoolConnectionProvider
extends Object
implements ConnectionProvider

A connection provider that uses a Proxool connection pool. Hibernate will use this by default if the hibernate.proxool.* properties are set.

See Also:

ConnectionProvider, Serialized Form

Field Summary

static ProxoolMessageLogger

LOG

Constructor Summary

ProxoolConnectionProvider()

Method Summary

void	close() Release all resources held by this provider.
void	closeConnection(Connection conn) Dispose of a used connection.
void	configure(Properties props) Initialize the connection provider from given properties.
Connection	getConnection() Grab a connection
boolean	isUnwrappableAs(Class unwrapType) Can this wrapped service be unwrapped as the indicated type?
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

Field Detail

LOG

public static final ProxoolMessageLogger LOG

Constructor Detail

ProxoolConnectionProvider

public ProxoolConnectionProvider()

Method Detail

getConnection

public Connection getConnection()
                         throws SQLException

Grab a connection

Specified by:

getConnection in interface ConnectionProvider

Returns:

a JDBC connection

Throws:

SQLException

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

closeConnection

public void closeConnection(Connection conn)
                     throws SQLException

Dispose of a used connection.

Specified by:

closeConnection in interface ConnectionProvider

Parameters:

conn - a JDBC connection

Throws:

SQLException

configure

public void configure(Properties props)
               throws HibernateException

Initialize the connection provider from given properties.

Parameters:

props - SessionFactory properties

Throws:

HibernateException

close

public void close()
           throws HibernateException

Release all resources held by this provider. JavaDoc requires a second sentence.

Throws:

HibernateException

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.

See Also:

ConnectionProvider.supportsAggressiveRelease()