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Commons DBCP example source code file (

This example Commons DBCP source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Commons DBCP tags/keywords

connectionpooldatasource, connectionpooldatasource, connectionpooldatasourceproxy, io, jdbc, pooledconnection, pooledconnection, pooledconnectionproxy, pooledconnectionproxy, printwriter, sql, sqlexception, sqlexception, string

The Commons DBCP source code

 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.

package org.apache.commons.dbcp.datasources;

import java.sql.SQLException;
import javax.sql.ConnectionPoolDataSource;
import javax.sql.PooledConnection;

 * ConnectionPoolDataSource implementation that proxies another 
 * ConnectionPoolDataSource.
 * @version $Revision$ $Date$
public class ConnectionPoolDataSourceProxy implements ConnectionPoolDataSource {

    protected ConnectionPoolDataSource delegate = null;
    public ConnectionPoolDataSourceProxy(ConnectionPoolDataSource cpds) {
        this.delegate = cpds;
    public ConnectionPoolDataSource getDelegate() {
        return delegate;
    public int getLoginTimeout() throws SQLException {
        return delegate.getLoginTimeout();
    public PrintWriter getLogWriter() throws SQLException {
        return delegate.getLogWriter();

     * Return a TesterPooledConnection with notifyOnClose turned on
    public PooledConnection getPooledConnection() throws SQLException {
        return wrapPooledConnection(delegate.getPooledConnection());

     * Return a TesterPooledConnection with notifyOnClose turned on
    public PooledConnection getPooledConnection(String user, String password)
            throws SQLException {
        return wrapPooledConnection(delegate.getPooledConnection(user, password));

    public void setLoginTimeout(int seconds) throws SQLException {

    public void setLogWriter(PrintWriter out) throws SQLException {
     * Create a TesterPooledConnection with notifyOnClose turned on
    protected PooledConnection wrapPooledConnection(PooledConnection pc) {
        PooledConnectionProxy tpc = new PooledConnectionProxy(pc);
        return tpc; 


Other Commons DBCP examples (source code examples)

Here is a short list of links related to this Commons DBCP source code file:

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