static void Main(string[] args)
{
ILampSwitchCentral lampSwitchCentral = new LampSwitchCentral();
//example
ILampSwitchSupplier observerSwitch1 = ConcreteSwitchFactory.CreateProductFromFactory("C1", lampSwitchCentral); // type C1
ILampSwitchSupplier observerSwitch2 = ConcreteSwitchFactory.CreateProductFromFactory("C2", lampSwitchCentral); // type C2
ILampSwitchSupplier observerSwitch3 = ConcreteSwitchFactory.CreateProductFromFactory("C1", lampSwitchCentral);
lampSwitchCentral.Attach(observerSwitch1);
lampSwitchCentral.Attach(observerSwitch2);
lampSwitchCentral.Attach(observerSwitch3);
ILightState lightState = new LightState();
lightState.CurrentState = false; // off
lampSwitchCentral.SetState(lightState);
lampSwitchCentral.Notify();
lightState.CurrentState = true; // on
lampSwitchCentral.SetState(lightState);
lampSwitchCentral.Notify();
// remove two lampswitches
lampSwitchCentral.Detach(observerSwitch1);
lampSwitchCentral.Detach(observerSwitch2);
// lights off! only one observer left, lets update it!
lightState.CurrentState = false; // off
lampSwitchCentral.Notify();
}
public LampSwitchCentral()
{
_observers = new List <ILampSwitchSupplier>();
_lightState = new LightState();
}
public void SetState(ILightState s)
{
_lightState = s as LightState;
}
