public void nextStage() {
if (s != null) {
s = s.nextStage(this);
if (s != null) {
s.apply(this);
}
}
}
public void turnOff() {
s = Stage.DYING1;
s.apply(this);
}
public void turnOn() {
s = Stage.SPAWNING;
s.apply(this);
}
@Override
public <R> XStream<R> pipe(final Stage<T, R> stage) {
return new XStreamImpl<>(stage.apply(stream));
}