[C# 디자인패턴] 제12강 프록시 패턴

예제코드

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace CSharp_DesignPattern
{
    abstract class Subject {
        public abstract void Request();
    }
 
    class RealSubject : Subject
    {
        public override void Request()
        {
            Console.WriteLine("Cakked RealSubject.Request");
        }
    }
 
    class Proxy : Subject
    {
        private RealSubject _realSubject;
 
        public override void Request()
        {
            if (_realSubject == null)
            {
                _realSubject = new RealSubject();
            }
 
            _realSubject.Request();
        }
    }
 
    class Program
    {
        static void Main(string[] args)
        {
            Proxy proxy = new Proxy();
            proxy.Request();
 
            Console.ReadKey();
        }
    }
}