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DatasourceConnectionProvider (Hibernate API Documentation) - Hibernate 3.2.4 正式版 API 英文文档

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org.hibernate.connection
Class DatasourceConnectionProvider

java.lang.Object
  org.hibernate.connection.DatasourceConnectionProvider

All Implemented Interfaces:: ConnectionProvider

public class DatasourceConnectionProvider
extends Object
implements ConnectionProvider

A connection provider that uses a DataSource registered with JNDI. Hibernate will use this ConnectionProvider by default if the property hibernate.connection.datasource is set.

Author:: Gavin King
See Also:: ConnectionProvider

Constructor Summary

DatasourceConnectionProvider()


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, with the autocommit mode specified by hibernate.connection.autocommit.

javax.sql.DataSource getDataSource()


void setDataSource(javax.sql.DataSource ds)


boolean supportsAggressiveRelease()
          Does this connection provider support aggressive release of JDBC connections and re-acquistion of those connections (if need be) later?
This is used in conjunction with org.hibernate.cfg.Environment.RELEASE_CONNECTIONS to aggressively release JDBC connections.

Methods inherited from class java.lang.Object

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

Constructor Detail

DatasourceConnectionProvider

public DatasourceConnectionProvider()

Method Detail

getDataSource

public javax.sql.DataSource getDataSource()

setDataSource

public void setDataSource(javax.sql.DataSource ds)

configure

public void configure(Properties props)
               throws HibernateException

Description copied from interface: ConnectionProvider

Initialize the connection provider from given properties.

Specified by:: configure in interface ConnectionProvider

Parameters:: props - SessionFactory properties
Throws:: HibernateException

getConnection

public Connection getConnection()
                         throws SQLException

Description copied from interface: ConnectionProvider

Grab a connection, with the autocommit mode specified by hibernate.connection.autocommit.

Specified by:: getConnection in interface ConnectionProvider

Returns:: a JDBC connection
Throws:: SQLException

closeConnection

public void closeConnection(Connection conn)
                     throws SQLException

Description copied from interface: ConnectionProvider

Dispose of a used connection.

Specified by:: closeConnection in interface ConnectionProvider

Parameters:: conn - a JDBC connection
Throws:: SQLException

close

public void close()

Description copied from interface: ConnectionProvider

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

Specified by:: close in interface ConnectionProvider

supportsAggressiveRelease

public boolean supportsAggressiveRelease()

Description copied from interface: ConnectionProvider

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

This is used in conjunction with org.hibernate.cfg.Environment.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

See Also:: ConnectionProvider.supportsAggressiveRelease()

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