int main()
{
ConcreteObserver* ob1 = new ConcreteObserver("ob1");
ConcreteObserver* ob2 = new ConcreteObserver("ob2");
ConcreteObserver* ob3 = new ConcreteObserver("ob3");
ConcreteSubject* subject = new ConcreteSubject();
subject->attach(ob1);
subject->attach(ob2);
subject->attach(ob3);
subject->set_state(3);
return 0;
}
int main()
{
ConcreteSubject* s = new ConcreteSubject(100);
s->attach(new ConcreteObserver("20160701",s));
s->attach(new ConcreteObserver("20160705",s));
s->setState(200);
s->notify();
return 0;
}
int main()
{
// Das Objekt h�lt alle Daten (=notfier = subject)
ConcreteSubject* subj = new ConcreteSubject();
ObserverInterface* obs1 = new ConcreteObserver(subj, "A");
ObserverInterface* obs2 = new ConcreteObserver(subj, "B");
// Observer(=views) an Subjekt anh�ngen (attachen)
subj->attach(obs1);
subj->attach(obs2);
// Daten �ndern und Observer informieren (notify)
subj->setData("TestData");
subj->notify();
return 0;
}