* over-writes the previous one. Note that the wildcard "*" for messageType
* or triggerEvent means any type or event, respectively.
*/
public synchronized void registerApplication(String messageType,
String triggerEvent, Application handler) {
ReceivingApplication handlerWrapper = new AppWrapper(handler);
applicationRouter.bindApplication(new AppRoutingDataImpl(messageType, triggerEvent, "*", "*"), handlerWrapper);
}