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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

connection, connection, connectionfactory, drivermanagerconnectionfactory, drivermanagerconnectionfactory, jdbc, properties, properties, sql, sqlexception, string, string, util

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;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;

 * A {@link DriverManager}-based implementation of {@link ConnectionFactory}.
 * @author Rodney Waldhoff
 * @author Ignacio J. Ortega
 * @author Dirk Verbeeck
 * @version $Revision: 746827 $ $Date: 2009-02-22 16:41:52 -0500 (Sun, 22 Feb 2009) $
public class DriverManagerConnectionFactory implements ConnectionFactory {

    static {
        // Related to DBCP-212
        // Driver manager does not sync loading of drivers that use the service
        // provider interface. This will cause issues is multi-threaded
        // environments. This hack makes sure the drivers are loaded before
        // DBCP tries to use them.

     * Constructor for DriverManagerConnectionFactory.
     * @param connectUri a database url of the form 
     * <code> jdbc:subprotocol:subname
     * @param props a list of arbitrary string tag/value pairs as
     * connection arguments; normally at least a "user" and "password" 
     * property should be included.
    public DriverManagerConnectionFactory(String connectUri, Properties props) {
        _connectUri = connectUri;
        _props = props;

     * Constructor for DriverManagerConnectionFactory.
     * @param connectUri a database url of the form 
     * <code>jdbc:subprotocol:subname
     * @param uname the database user
     * @param passwd the user's password
    public DriverManagerConnectionFactory(String connectUri, String uname, String passwd) {
        _connectUri = connectUri;
        _uname = uname;
        _passwd = passwd;

    public Connection createConnection() throws SQLException {
        if(null == _props) {
            if((_uname == null) && (_passwd == null)) {
                return DriverManager.getConnection(_connectUri);
            } else {
                return DriverManager.getConnection(_connectUri,_uname,_passwd);
        } else {
            return DriverManager.getConnection(_connectUri,_props);

    protected String _connectUri = null;
    protected String _uname = null;
    protected String _passwd = null;
    protected Properties _props = null;

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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