private void notifyObservers(HistogramUpdate update) {
Iterator<IObserver> iter = observers.iterator();
while (iter.hasNext()) {
IObserver listener = iter.next();
listener.update(this, update);
}
}
private void notifyDataObservers(DataBean bean) {
Iterator<IObserver> iter = dataObservers.iterator();
while (iter.hasNext()) {
IObserver ob = iter.next();
ob.update(this, bean);
}
}