[C# 디자인패턴] 제13강 커맨드패턴

예제코드

using System;
 
namespace CSharp_CommandPattern
{    
    abstract class Command
    {
        protected Receiver receiver;
 
        public Command(Receiver receiver)
        {
            this.receiver = receiver;
        }
 
        public abstract void Execute();
    }
 
    class ConcreteCommand : Command
    {
        public ConcreteCommand(Receiver receiver) : base(receiver)
        {
        }
 
        public override void Execute()
        {
            receiver.Action();
        }
    }
 
    class Receiver
    {
        public void Action()
        {
            Console.WriteLine("Called Receiver.Action()");
        }
    }
 
    class Invoker
    {
        private Command _command;
 
        public void SetCommand(Command command)
        {
            this._command = command;
        }
 
        public void ExecuteCommand()
        {
            _command.Execute();
        }
    }
 
    class Program
    {
        static void Main()
        {
            Receiver receiver = new Receiver();
            Command command = new ConcreteCommand(receiver);
            
            Invoker invoker = new Invoker();
            invoker.SetCommand(command);
            invoker.ExecuteCommand();
 
            Console.ReadKey();
        }
    }
}