/**
* 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);
}
}
/**
* Removes <tt>listener</tt> from the list of currently registered {@link CapsVerListener}s.
*
* @param listener the {@link CapsVerListener} we'd like to unregister.
*/
public void removeCapsVerListener(CapsVerListener listener) {
synchronized (capsVerListeners) {
capsVerListeners.remove(listener);
}
}