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Java Source Code / Java Documentation » Database ORM » hibernate » org.hibernate.connection

Source Cross Reference Class Diagram Java Document (Java Doc)

org.hibernate.connection .ConnectionProvider

All known Subclasses:   org.hibernate.connection .DatasourceConnectionProvider,  org.hibernate.connection .DriverManagerConnectionProvider,  org.hibernate.connection .C3P0ConnectionProvider,  org.hibernate.connection .UserSuppliedConnectionProvider,  org.hibernate.connection .ProxoolConnectionProvider,
ConnectionProvider
public interface ConnectionProvider (Code)
A strategy for obtaining JDBC connections.

Implementors might also implement connection pooling.

The ConnectionProvider interface is not intended to be exposed to the application. Instead it is used internally by Hibernate to obtain connections.

Implementors should provide a public default constructor.
See Also:   ConnectionProviderFactory
author:
   Gavin King

Method Summary
public void close()
     Release all resources held by this provider.
public void closeConnection(Connection conn)
     Dispose of a used connection.
public void configure(Properties props)
     Initialize the connection provider from given properties.
public Connection getConnection()
     Grab a connection, with the autocommit mode specified by hibernate.connection.autocommit.
public 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.

Method Detail
close
public void close() throws HibernateException(Code)
Release all resources held by this provider. JavaDoc requires a second sentence.
throws:
  HibernateException -

closeConnection
public void closeConnection(Connection conn) throws SQLException(Code)
Dispose of a used connection.
Parameters:
  conn - a JDBC connection
throws:
  SQLException -

configure
public void configure(Properties props) throws HibernateException(Code)
Initialize the connection provider from given properties.
Parameters:
  props - SessionFactory properties

getConnection
public Connection getConnection() throws SQLException(Code)
Grab a connection, with the autocommit mode specified by hibernate.connection.autocommit. a JDBC connection
throws:
  SQLException -

supportsAggressiveRelease
public boolean supportsAggressiveRelease()(Code)
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.

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