public synchronized boolean registerMessageListener(
String destinationName, MessageListener messageListener) {
Destination destination = _destinations.get(destinationName);
if (destination == null) {
throw new IllegalStateException("Destination " + destinationName + " is not configured");
}
boolean registered = destination.register(messageListener);
if (registered) {
fireMessageListenerRegisteredEvent(destination, messageListener);
}
return registered;
}
