using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;
using System.Configuration;
//5_1_a_s_p_x.c_o_m

namespace StudentManager.DALFactory
{
    /// <summary>
    /// 反射工廠類創建實體對象
    /// 創建者:余洪
    /// 時間:2008-03
    /// </summary>
    public sealed class DataAccess
    {
        #region 獲取配置文件中配置的數據庫路徑
        private static readonly string path =ConfigurationManager.AppSettings["StudentManagerDb"];
        #endregion

        #region 創建學生實體
        /// <summary>
        /// 創建學生實體
        /// </summary>
        /// <returns>學生實體</returns>
        public static StudentManager.IDAL.IStudent CreateStudent()
        {
            string className = path + ".Student";
            return (StudentManager.IDAL.IStudent)Assembly.Load(path).CreateInstance(className);
        }
        #endregion

        #region 創建教師實體
        /// <summary>
        /// 創建教師實體
        /// </summary>
        /// <returns>教師實體</returns>
        public static StudentManager.IDAL.ITeacher CreateTeacher()
        {
            string className = path + ".Teacher";
            return (StudentManager.IDAL.ITeacher)Assembly.Load(path).CreateInstance(className);
        }
        #endregion

        #region 創建部門(學院)實體
        /// <summary>
        /// 創建部門實體
        /// </summary>
        /// <returns>部門實體</returns>
        public static StudentManager.IDAL.IDepartment CreateDepartment()
        {
            string className = path + ".Department";
            return (StudentManager.IDAL.IDepartment)Assembly.Load(path).CreateInstance(className);
        }
        #endregion

        #region 創建公用信息實體
        /// <summary>
        /// 創建公用信息實體
        /// </summary>
        /// <returns>公共信息實體</returns>
        public static StudentManager.IDAL.ICommon CreateCommon()
        {
            string className = path + ".Common";
            return (StudentManager.IDAL.ICommon)Assembly.Load(path).CreateInstance(className);
        }
        #endregion

        #region 使用反射工廠創建公告實體
        /// <summary>
        /// 使用反射工廠創建公告實體
        /// </summary>
        /// <returns>公共信息實體</returns>
        public static StudentManager.IDAL.IAffiche CreateAffiche()
        {
            string className = path + ".Affiche";
            return (StudentManager.IDAL.IAffiche)Assembly.Load(path).CreateInstance(className);
        }
        #endregion

        #region 利用反射工廠創建專業實體
        public static StudentManager.IDAL.ISpeciality CreateSpeciality()
        {
            string className = path + ".Speciality";
            return (StudentManager.IDAL.ISpeciality)Assembly.Load(path).CreateInstance(className);
        }
        #endregion

        #region 使用反射工廠創建班級實體
        public static StudentManager.IDAL.IClass CreateClass()
        {
            string className = path + ".StuClass";
            return (StudentManager.IDAL.IClass)Assembly.Load(path).CreateInstance(className);
        }
        #endregion

        #region 使用反射工廠創建課程實體
        public static StudentManager.IDAL.ICourse CreateCourse()
        {
            string className = path + ".Course";
            return (StudentManager.IDAL.ICourse)Assembly.Load(path).CreateInstance(className);
        }
        #endregion

    }
}