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/*-------------------------------------------------------------------------
*
* Copyright (c) 2004-2011, PostgreSQL Global Development Group
*
*
*-------------------------------------------------------------------------
*/
package com.foundationdb.sql.jdbc.ds;

import javax.sql.DataSource;

/**
 * DataSource which uses connection pooling.  Don't use this if
 * your server/middleware vendor provides a connection pooling implementation
 * which interfaces with the PostgreSQL ConnectionPoolDataSource implementation!
 * 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.
 *
 * 

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 only connections * for the default user will be pooled! Connections for other users will * be normal non-pooled connections, and will not count against the maximum pool * size limit.

* *

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.

* *

This implementation supports JDK 1.3 and higher.

* * @author Aaron Mulder ([email protected]) */ public class FDBPoolingDataSource extends com.foundationdb.sql.jdbc.ds.jdbc4.AbstractJdbc4PoolingDataSource implements DataSource { protected void addDataSource(String dataSourceName) { dataSources.put(dataSourceName, this); } }




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