com.vaadin.data.util.sqlcontainer.connection

Class J2EEConnectionPool

java.lang.Object

com.vaadin.data.util.sqlcontainer.connection.J2EEConnectionPool

All Implemented Interfaces:

JDBCConnectionPool, Serializable

public class J2EEConnectionPool
extends Object
implements JDBCConnectionPool

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
J2EEConnectionPool(DataSource dataSource)
J2EEConnectionPool(String dataSourceJndiName)

Method Summary

Modifier and Type	Method and Description
void	destroy() Destroys the connection pool: close() is called an all the connections in the pool, whether available or reserved.
void	releaseConnection(Connection conn) Releases a connection that was retrieved earlier.
Connection	reserveConnection() Retrieves a connection.

Methods inherited from class java.lang.Object

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

Constructor Detail

J2EEConnectionPool

public J2EEConnectionPool(DataSource dataSource)

J2EEConnectionPool

public J2EEConnectionPool(String dataSourceJndiName)

Method Detail

reserveConnection

public Connection reserveConnection()
                             throws SQLException

Description copied from interface: JDBCConnectionPool

Retrieves a connection.

Specified by:

reserveConnection in interface JDBCConnectionPool

Returns:

a usable connection to the database

Throws:

SQLException

releaseConnection

public void releaseConnection(Connection conn)

Description copied from interface: JDBCConnectionPool

Releases a connection that was retrieved earlier. Note that depending on implementation, the transaction possibly open in the connection may or may not be rolled back.

Specified by:

releaseConnection in interface JDBCConnectionPool

Parameters:

conn - Connection to be released

destroy

public void destroy()

Description copied from interface: JDBCConnectionPool

Destroys the connection pool: close() is called an all the connections in the pool, whether available or reserved. This method was added to fix PostgreSQL -related issues with connections that were left hanging 'idle'.

Specified by:

destroy in interface JDBCConnectionPool