org.hibernate.service.jdbc.connections.internal

Class DatasourceConnectionProviderImpl

java.lang.Object

org.hibernate.service.jdbc.connections.internal.DatasourceConnectionProviderImpl

All Implemented Interfaces:

Serializable, ConnectionProvider, Service, Configurable, Stoppable, Wrapped

Direct Known Subclasses:

InjectedDataSourceConnectionProvider

public class DatasourceConnectionProviderImpl
extends Object
implements ConnectionProvider, Configurable, Stoppable

A ConnectionProvider that manages connections from an underlying DataSource.

The DataSource to use may be specified by either:

• injection via setDataSource(javax.sql.DataSource)
• decaring the DataSource instance using the AvailableSettings.DATASOURCE config property
• decaring the JNDI name under which the DataSource can be found via AvailableSettings.DATASOURCE config property

Author:

Gavin King, Steve Ebersole

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DatasourceConnectionProviderImpl()

Method Summary

Methods

Modifier and Type	Method and Description
void	closeConnection(Connection connection) Release a connection from Hibernate use.
void	configure(Map configValues) Configure the service.
Connection	getConnection() Obtains a connection for Hibernate use according to the underlying strategy of this provider.
DataSource	getDataSource()
boolean	isUnwrappableAs(Class unwrapType) Can this wrapped service be unwrapped as the indicated type?
void	setDataSource(DataSource dataSource)
void	setJndiService(JndiService jndiService)
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

DatasourceConnectionProviderImpl

public DatasourceConnectionProviderImpl()

Method Detail

getDataSource

public DataSource getDataSource()

setDataSource

public void setDataSource(DataSource dataSource)

setJndiService

public void setJndiService(JndiService jndiService)

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

configure

public void configure(Map configValues)

Configure the service.

Specified by:

configure in interface Configurable

Parameters:

configValues - 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

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 connection)
                     throws SQLException

Release a connection from Hibernate use.

Specified by:

closeConnection in interface ConnectionProvider

Parameters:

connection - The JDBC connection to release

Throws:

SQLException - Indicates a problem closing the connection

supportsAggressiveRelease

public 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. 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.