@Override
public Activity getActivity(Place place) {
if (place instanceof HelloPlace)
return new HelloActivity((HelloPlace) place, clientFactory);
else if (place instanceof GoodbyePlace)
return new GoodbyeActivity((GoodbyePlace) place, clientFactory);
// else if (place instanceof ReallyGoodbyePlace)
// return new ReallyGoodbyeActivity((ReallyGoodbyePlace) place,
// clientFactory);
return null;
}