public ObserverTest()
{
_subject = new ConcreteSubject();
_observerA = new ConcreteObserverA(_subject);
_observerB = new ConcreteObserverB(_subject);
_subject.Attach(_observerA);
_subject.Attach(_observerB);
}
private void Start()
{
ConcreteSubjectA subjectA = new ConcreteSubjectA();
IObserver observerA = new ConcreteObserverA(subjectA);
IObserver observerB = new ConcreteObserverB(subjectA);
subjectA.AddObserber(observerA);
subjectA.AddObserber(observerB);
//改变subjectA的状态
subjectA.State = "状态A";
}
public void RunTest()
{
var o1 = new ConcreteObserverA();
var o2 = new ConcreteObserverB();
var subject = new Subject();
subject.RegisterObserver(o1);
subject.RegisterObserver(o2);
subject.NotifyListeners();
Console.WriteLine("Listeners notified!");
Assert.Pass();
}
static void Main(string[] args)
{
var subject = new Subject();
var concreteObserverA = new ConcreteObserverA();
var concreteObserverB = new ConcreteObserverB();
subject.Notify += concreteObserverA.Update;
subject.Notify += concreteObserverB.Update;
subject.StateDelegate += concreteObserverA.Update;
subject.StateDelegate += concreteObserverB.Update;
subject.SomeBusinessLogic();
}
static void Main(string[] args)
{
//Observer Pattern
var subject = new Subject();
var observerA = new ConcreteObserverA();
subject.Attach(observerA);
var observerB = new ConcreteObserverB();
subject.Attach(observerB);
subject.SomeBusinessLogic();
subject.SomeBusinessLogic();
subject.Detach(observerB);
subject.SomeBusinessLogic();
}
private static void DemonstrateObserver()
{
var subject = new Subject();
var observerA = new ConcreteObserverA();
var observerB = new ConcreteObserverB();
observerA.Subscribe(subject);
observerB.Subscribe(subject);
subject.AddItem(2);
subject.AddItem(3);
observerA.Unsubscribe();
subject.AddItem(5);
observerB.Unsubscribe();
}
public static void RunPubSub()
{
var subject = new Subject();
var observerA = new ConcreteObserverA();
subject.Attach(observerA);
var observerB = new ConcreteObserverB();
subject.Attach(observerB);
subject.SomeBusinessLogic();
subject.SomeBusinessLogic();
subject.Detach(observerB);
subject.SomeBusinessLogic();
}
public static void ClientCode()
{
var subj = new Subject();
var o1 = new ConcreteObserverA();
subj.attach(o1);
var o2 = new ConcreteObserverB();
subj.attach(o2);
subj.someBusinessLogic();
subj.someBusinessLogic();
subj.detach(o2);
subj.someBusinessLogic();
}
public void ObserverTest()
{
// The client code.
var subject = new Subject();
var observerA = new ConcreteObserverA();
subject.Attach(observerA);
var observerB = new ConcreteObserverB();
subject.Attach(observerB);
subject.SomeBusinessLogic().Should().BeInRange(0, 10);
subject.SomeBusinessLogic().Should().BeInRange(0, 10);
subject.Detach(observerB);
subject.SomeBusinessLogic().Should().BeInRange(0, 10);
}
public void Get()
{
// The client code.
var subject = new Subject();
var observerA = new ConcreteObserverA();
subject.Attach(observerA);
var observerB = new ConcreteObserverB();
subject.Attach(observerB);
subject.SomeBusinessLogic();
subject.SomeBusinessLogic();
subject.Detach(observerB);
subject.SomeBusinessLogic();
}
static void MainABC(string[] args)
{
// The client code.
var subject = new ConcreteSubject();
var observerA = new ConcreteObserverA();
subject.Attach(observerA);
var observerB = new ConcreteObserverB();
subject.Attach(observerB);
subject.SomeBusinessLogic();
subject.SomeBusinessLogic();
subject.Detach(observerB);
subject.SomeBusinessLogic();
}
static void Main(string[] args)
{
// The client code.
var subject = new Subject();
var observerA = new ConcreteObserverA();
subject.AddOberver(observerA);
var observerB = new ConcreteObserverB();
subject.AddOberver(observerB);
subject.SomeBusinessLogic();
subject.SomeBusinessLogic();
subject.DeleteOberver(observerB);
subject.SomeBusinessLogic();
}
private void RunObserverTest()
{
ConcreteObservable someProcess = new ConcreteObservable();
for (int i = 0; i < 10; i++)
{
if (i % 2 == 0)
{
var tempObject = new ConcreteObserverA(String.Format("ObserverA{0}", i), someProcess);
}
else
{
var tempObject = new ConcreteObserverB(String.Format("ObserverB{0}", i), someProcess);
}
}
for (int i = 0; i < 10; i++)
{
someProcess.ReinitInnerState();
}
}
