?using System;
using System.Collections.Generic;
using System.Text;

using System.Configuration;
using IDAL;

namespace Factory
{
    public abstract class AbstractFactory
    {
        //創(chuàng)建工廠
        public static AbstractFactory GetFactory()
        {
            //根據(jù)Web.Config文件中的值確定返回那個(gè)工廠的對(duì)象
            string type = ConfigurationManager.AppSettings["DAL"] as string;
            switch (type)
            {
                case "Access": return new AccessFactory();
                case "SQLServer": return new SQLServerFactory();
                default: return null;
            }
        }
        public abstract IRoom CreateRoomOperator();
        public abstract IRoomType CreateRoomTypeOperator();
        public abstract IHotelUser CreateHotelUser();
    }
}