简单工厂模式的实践

package inital
//redis
type Cache interface {
   Set (key string,value string)
   Get(key string) string
}
type Redis struct{
   RedisValue map[string]string
}
func(this *Redis)Set(key string,value string){
   this.RedisValue=make(map[string]string)
   this.RedisValue[key]=value
}
func (this *Redis)Get(key string)string{
   return this.RedisValue[key]
}
//todo 不过这里面如果是interface 要该怎么做呢
//memCache
type MemCache struct{
   RedisValue map[string]string
}
func(this *MemCache)Set(key string,value string){
   this.RedisValue=make(map[string]string)
   this.RedisValue[key]=value
}
func (this *MemCache)Get(key string)string{
   return this.RedisValue[key]
}
type DoSimpleFactoryImplement struct{
}
func (this *DoSimpleFactoryImplement)DoSimpleFactoryImplement(input string)Cache {
   switch input {
   case "memCache":
      return &MemCache{}
   case "redis":
      return &Redis{}
   }
   return nil
}

测试代码：

func TestFactoryImplement(t *testing.T){
   factory:=inital.DoSimpleFactoryImplement{}
   redis:=factory.DoSimpleFactoryImplement("redis")
   redis.Set("cart:1001","10")
   fmt.Println(redis.Get("cart:1001"))

   //______——————————————————————————————————————————————
   memCache:=factory.DoSimpleFactoryImplement("memCache")
   memCache.Set("cart:1001","1010")
   fmt.Println(memCache.Get("cart:1001"))
}