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namespace ConsoleApplication2 { class Program { static void Main(string[] args) { } } /* Observer インスタンスの状態が変化した場合観察者に通知*/ public interface Observer { void Update(Subject subject); } public interface Subject { void AddObserver(); void NotifyObserver(); } public class ConcreateObserver: Observer { public void Update(Subject subject) { } } public class ConcreateSubject: Subject { System.Collections.Generic.List<Observer> ObserverList = new System.Collections.Generic.List<Observer>(); ConcreateObserver co = new ConcreateObserver(); public void AddObserver() { ObserverList.Add(co); } public void NotifyObserver() { co.Update(this); } } } |