[C# 디자인패턴] 제11강 퍼사드 패턴

예제코드

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
 
namespace CSharp_FacedePattern
{
    class SubSystemOne {
        public void MethodOne() {
            Console.WriteLine(" SubSystemOne Method");
        }
    }
 
    class SubSystemTwo {
        public void MethodTwo() {
            Console.WriteLine(" SubSystemTwo Method");
        }
    }
 
    class SubSystemThree {
        public void MethodThree() {
            Console.WriteLine(" SubSystemThree Method");
        }
    }
 
    class SubSystemFour {
        public void MethodFour() {
            Console.WriteLine(" SubSystemFour Method");
        }
    }
 
    class Facade {
        private SubSystemOne _one;
        private SubSystemTwo _two;
        private SubSystemThree _three;
        private SubSystemFour _four;
 
        public Facade() {
            _one = new SubSystemOne();
            _two = new SubSystemTwo();
            _three = new SubSystemThree();
            _four = new SubSystemFour();
        }
 
        public void MethodA() {
            Console.WriteLine("\nMethodA() ---- ");
            _one.MethodOne();
            _two.MethodTwo();
            _four.MethodFour();
        }
 
        public void MethodB() {
            Console.WriteLine("\nMethodB() ---- ");
            _two.MethodTwo();
            _three.MethodThree();
        }
    }
 
    class Program
    {
        static void Main(string[] args)
        {
            Facade facade = new Facade();
            facade.MethodA();
            facade.MethodB();
    
            Console.ReadKey();
        }
    }
}