dbpoolmanager.java

一个完整的代码管理系统的源代码

/*
 * Copyright (c) 2008-2010 Tanming1003 Inc.
 * All rights reserved.
 * 
 * tanming1003<[e-mail]>
 * 
 * 
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions 
 * are met:
 * 
 * Redistributions of source code must retain the above copyright 
 * notice, this list of conditions and the following disclaimer. 
 * Redistributions in binary form must reproduce the above copyright 
 * notice, this list of conditions and the following disclaimer in the 
 * documentation and/or other materials provided with the distribution. 
 * Neither the name of tanming1003 nor the names of its contributors 
 * may be used to endorse or promote products derived from this 
 * software without specific prior written permission. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
 * REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 */
package hunnu.edu.cn.product.common.db.pool;

import hunnu.edu.cn.product.log.LogFactory;
import hunnu.edu.cn.product.log.LogLog;

import java.sql.Connection;

/**
 * @author tanming1003
 * @date 2008-10-10
 * @time 下午02:08:55
 * @project_name Product
 * @package_name hunnu.edu.cn.product.common.db.pool
 * @file_name    DBPoolManager.java
 * @version      1.0
 */
public class DBPoolManager
{
	private DBPool pool;
    private LogLog log=LogFactory.newInstance().getLog(this.getClass());
    
    public DBPoolManager()
    {
    	DBPoolFactory factory=DBPoolFactory.newInstance();
    	pool=factory.newDBPool();
    }
    
    public DBPoolManager(DBPool pool)
    {
    	this.pool=pool;
    }
    
    public Connection getConnection()
    {
    	log.info("获取一个连接........");
    	if(pool.getCurrentSize()==0)
    		pool.init();
    	Connection connection=(Connection)pool.get();
    	log.info("数据库连接池现在的大小是："+pool.getDbpool().size());
    	return connection;
    }
    
    public void returnConnection(Connection connection)
    {
    	log.info("归还一个数据库连接池......");
    	pool.fill(connection);
    }
    
    public void destroyPool()
    {
    	if(pool!=null)
    	   pool.destroy();
    }
    
    public void produceConnection()
    {
    	pool.newConnection();
    }
    
    public int getConnections()
    {
    	return pool.getConnections();
    }

	/**
	 * @return the pool
	 */
	public DBPool getPool()
	{
		return pool;
	}

	/**
	 * @param pool the pool to set
	 */
	public void setPool(DBPool pool)
	{
		this.pool = pool;
	} 
}