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/*-------------------------------------------------------------------------
*
* Copyright (c) 2004-2008, PostgreSQL Global Development Group
*
* IDENTIFICATION
* $PostgreSQL: pgjdbc/org/postgresql/ds/PGPoolingDataSource.java.in,v 1.2 2008/01/08 06:56:27 jurka Exp $
*
*-------------------------------------------------------------------------
*/
package org.postgresql.ds;
import javax.sql.DataSource;
/**
* DataSource which uses connection pooling. <font color="red">Don't use this if
* your server/middleware vendor provides a connection pooling implementation
* which interfaces with the PostgreSQL ConnectionPoolDataSource implementation!</font>
* This class is provided as a convenience, but the JDBC Driver is really not
* supposed to handle the connection pooling algorithm. Instead, the server or
* middleware product is supposed to handle the mechanics of connection pooling,
* and use the PostgreSQL implementation of ConnectionPoolDataSource to provide
* the connections to pool.
*
* <p>If you're sure you want to use this, then you must set the properties
* dataSourceName, databaseName, user, and password (if required for the user).
* The settings for serverName, portNumber, initialConnections, and
* maxConnections are optional. Note that <i>only connections
* for the default user will be pooled!</i> Connections for other users will
* be normal non-pooled connections, and will not count against the maximum pool
* size limit.</p>
*
* <p>If you put this DataSource in JNDI, and access it from different JVMs (or
* otherwise load this class from different ClassLoaders), you'll end up with one
* pool per ClassLoader or VM. This is another area where a server-specific
* implementation may provide advanced features, such as using a single pool
* across all VMs in a cluster.</p>
*
* <p>This implementation supports JDK 1.3 and higher.</p>
*
* @author Aaron Mulder (ammulder@chariotsolutions.com)
*/
public class PGPoolingDataSource
extends @POOLING_DS_CLASS@
implements DataSource
{
protected void addDataSource(String dataSourceName)
{
dataSources.put(dataSourceName, this);
}
}
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