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; }