public void Add(IEventHandleObserver observer)
{
_observers.Add(observer);
}
private void InitializeSubject()
{
_eventHandleSubject.Remove(Constant.SnapshootSubscribeId);
_snapshootEventHandleObserver = new EventHandleObserver(Constant.SnapshootSubscribeId);
_eventHandleSubject.Add(_snapshootEventHandleObserver);
}
