/**
* Notifies all currently registered {@link CapsVerListener}s that the version hash has changed.
*/
private void fireCapsVerChanged() {
List<CapsVerListener> listenersCopy = null;
synchronized (capsVerListeners) {
listenersCopy = new ArrayList<CapsVerListener>(capsVerListeners);
}
for (CapsVerListener listener : listenersCopy) listener.capsVerUpdated(currentCapsVersion);
}
/**
* Adds <tt>listener</tt> to the list of {@link CapsVerListener}s that we notify when new features
* occur and the version hash needs to be regenerated. The method would also notify
* <tt>listener</tt> if our current caps version has been generated and is different than
* <tt>null</tt>.
*
* @param listener the {@link CapsVerListener} we'd like to register.
*/
public void addCapsVerListener(CapsVerListener listener) {
synchronized (capsVerListeners) {
if (capsVerListeners.contains(listener)) return;
capsVerListeners.add(listener);
if (currentCapsVersion != null) listener.capsVerUpdated(currentCapsVersion);
}
}