public void Notify()
{
AlienObserver pNode = this.head;
while (pNode != null)
{
// Fire off listener
pNode.Notify();
pNode = (AlienObserver)pNode.pNext;
}
}
public void Attach(AlienObserver observer)
{
// protection
Debug.Assert(observer != null);
observer.pSubject = this;
// add to front
if (head == null)
{
head = observer;
observer.pNext = null;
observer.pPrev = null;
}
else
{
observer.pNext = head;
observer.pPrev = null;
head.pPrev = observer;
head = observer;
}
}
public void Attach(AlienObserver observer)
{
this.poSubject.Attach(observer);
}
