dataaccess.cs

guan yu pai ke xi tong de ruan jian

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

using System.Reflection;
using System.Configuration;

using Y2T03.CourseScheduler.CourseDAL;
using Y2T03.CourseScheduler.IDAL;

namespace Y2T03.CourseScheduler.DALFactory
{
    /// <summary>
    /// 抽象类工厂
    /// </summary>
    public class DataAccess
    {
        private static readonly string path = ConfigurationManager.AppSettings["WebDAL"];

        #region 抽象类工厂
        public static IAccountSafety GetAccountSafety()
        { 
            string className = path + ".AccountSafetyDAL";
            return Assembly.Load(path).CreateInstance(className) as AccountSafetyDAL;

            //等同;
            //AccountSafetyDAL dal = new AccountSafetyDAL();
            //dal = (AccountSafetyDAL)Assembly.Load(path).CreateInstance(className);
            //return dal;
        }

        public static IAutoCourse GetAutoCourse()
        {
            string className = path + ".AutoCourseDAL";
            return Assembly.Load(path).CreateInstance(className) as AutoCourseDAL;
        }

        public static IClassManager GetClassManager()
        {
            string className = path + ".ClassManagerDAL";
            return Assembly.Load(path).CreateInstance(className) as ClassManagerDAL;
        }

        public static IClassRoomManager GetClassRoomManager()
        {
            string className = path + ".ClassRoomManagerDAL";
            return Assembly.Load(path).CreateInstance(className) as ClassRoomManagerDAL;
        }

        public static ICourseManager GetCourseManager()
        {
            string className = path + ".CourseManagerDAL";
            return Assembly.Load(path).CreateInstance(className) as CourseManagerDAL;
        }

        public static ITeacherManager GetTeacherManager()
        {
            string className = path + ".TeacherManagerDAL";
            return Assembly.Load(path).CreateInstance(className) as TeacherManagerDAL;
        }

        public static IClassTeachingManager GetClassTeachingManager()
        {
            string className = path + ".ClassTeachingManagerDAL";
            return Assembly.Load(path).CreateInstance(className) as ClassTeachingManagerDAL;
        }
        #endregion
    }
}