Commons DBCP example source code file (DriverManagerConnectionFactory.java)

This example Commons DBCP source code file (DriverManagerConnectionFactory.java) is included in the DevDaily.com "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 DriverManagerConnectionFactory.java 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
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * 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.
        DriverManager.getDrivers();
    }


    /**
     * 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;
}