/**
* Register a new listener in this handler list
*
* @param listener listener to register
*/
public synchronized void register(RegisteredListener listener) {
if (handlerslots.get(listener.getPriority()).contains(listener)) {
throw new IllegalStateException(
"This listener is already registered to priority " + listener.getPriority().toString());
}
handlers = null;
if (listener.getPriority() == EventPriority.EXECUTOR && allowExecutor == false) {
throw new IllegalStateException("an executor is not allowed for this event");
}
if (listener.getPriority() == EventPriority.EXECUTOR
&& handlerslots.get(EventPriority.EXECUTOR).isEmpty() == false) {
throw new IllegalStateException("an executor is already registered for this event");
}
handlerslots.get(listener.getPriority()).add(listener);
}
/**
* Remove a listener from a specific order slot
*
* @param listener listener to remove
*/
public synchronized void unregister(RegisteredListener listener) {
if (handlerslots.get(listener.getPriority()).remove(listener)) {
handlers = null;
}
}