context.java

一个完整的代码管理系统的源代码

/*
 * Copyright (c) 2007-2010 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;

import java.io.Serializable;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.List;
import java.util.Observable;


/**
* @author tanming1003
* @date 2008-10-10
* @time 下午15:37:29
* @project_name Product
* @package_name hunnu.edu.cn.product.common.db
* @file_name    JdbcContext.java
* @version      1.0
*/

public abstract class Context extends Observable implements Serializable
{
	/**
	 * 
	 */
	private static final long serialVersionUID = 3446796608026292792L;
    protected Connection connection;
    
    public abstract boolean isActive();
    public abstract boolean isCommited();
    public abstract boolean isRollbacked();
    public abstract void setCommited(boolean isCommited);
    public abstract void setRollbacked(boolean isRollbacked);
    public abstract void commit();
    public abstract void rollback();
    public abstract void closeConnection(Connection connection)throws SQLException;
    public abstract boolean insertRecord(String sql,Object[] param)throws SQLException;
    public abstract boolean deleteRecord(String sql,Object[] param)throws SQLException;
    public abstract int updateRecord(String sql,Object[] param)throws SQLException;
    public abstract List<?> queryRecord(String sql,Object[] param)throws SQLException;
    public abstract void insert(String sql)throws SQLException;
    public abstract void delete(String sql)throws SQLException;
    public abstract void update(String sql)throws SQLException;
    public abstract List<?> query(String sql)throws SQLException;
    
    public Context()
    {
    	super();
    	this.connection=null;
    }
    
    public Context(Connection connection)
    {
    	this.connection=connection;
    }
    
    public void setAutoCommit(boolean auto)throws SQLException
    {
    	try
		{
			this.connection.setAutoCommit(auto);
		}
		catch (SQLException e)
		{
			e.printStackTrace();
		}
    }
    
    public boolean getAutoCommit()throws SQLException
    {
    	try
		{
			return this.connection.getAutoCommit();
		}
		catch (SQLException e)
		{
            e.printStackTrace();
            return false;
		}
    }
}