Nhibernate(1)续

在前面的基础上加个工厂
接口层IDAL

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

namespace IDAL
{
    public interface AnimalsIDAL
    {
        bool Add(Model.Animals a);
    }
}

工厂层:Factory
缓存帮助类

using System;
using System.Collections.Generic;
using System.Text;
using System.Web.Caching;
using System.Web;
using System.Reflection;
using System.Configuration;

namespace Factory
{
    public class CachHelper
    {
        static string dal = ConfigurationManager.AppSettings["DAL"];

        static object GetCach(string key)
        {
            return HttpRuntime.Cache[key];
        }

        static void InsertCach(string key, object value)
        {
            Cache cach = HttpRuntime.Cache;
            cach.Insert(key, value);
        }

        public static object CareteInstance(string classname)
        {
            object obj = GetCach(classname);
            if (obj == null)
            {
                obj = Assembly.Load(dal).CreateInstance(dal + "." + classname);
                InsertCach(classname, obj);
            }
            return obj;
        }
    }
}

using System;
using System.Collections.Generic;
using System.Text;
using IDAL;
namespace Factory
{
   public  class DALFactory
    {

       public static IDAL.AnimalsIDAL  CareateAnimalIDAL()
       {
           return (AnimalsIDAL)CachHelper.CareteInstance("AnimalsDAL"); ;
       }
    }
}

BLL：

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

namespace BLL
{
    public  class AnimalsBLL
    {
        public bool Add(Model.Animals animal)
        {
            return Factory.DALFactory.CareateAnimalIDAL().Add(animal);
        }
    }
}