daofactory.java

一个基于java工厂模式的 的实现

/*
 * DAOFactory.java
 *
 * Created on 2007年4月17日, 下午4:36
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package com.ebuy.dataaccess;

import com.ebuy.common.*;
import com.ebuy.common.dao.IDAOFactory;
import com.ebuy.common.dao.IDAO;


/**
 *
 * @author Administrator
 */
public class DAOFactory implements IDAOFactory
{
    public IDAO getDAOInstance(NameProvider name)
    {
        IDAO dao=null;
        switch(name)
        {
            case Category:
                dao=new CategoryDAO();
                break;
            case Customer:
                dao=new  CustomerDAO();
                break;
            case Product:
                dao=new ProductDAO();
                break;
            case Order:
                dao=new OrderDAO();
                break;
        }
        return dao;
    }
}