org.dmd.mvw.client.mvw

Class MvwEventBus

java.lang.Object

com.google.web.bindery.event.shared.EventBus

com.google.web.bindery.event.shared.SimpleEventBus

org.dmd.mvw.client.mvw.MvwEventBus

public class MvwEventBus
extends com.google.web.bindery.event.shared.SimpleEventBus

The MvwEventBus extends the usual SimpleEventBus to handle the incredibly annoying behaviour of throwing an UmbrellaException when something goes wrong when calling event handlers. The UmbrellaException concept is fine, since there could be multiple exceptions thrown when an event is handled by multiple components, but, in actual usage, you want to be able to easily see where an exception came from.

So, the MvwEventBus will catch the UmbrellaException and rethrow the first exception it contains, which will usually make it obvious where things screwed up, and it will dump a SEVERE log.

Constructor Summary

Constructors

Constructor and Description
MvwEventBus()

Method Summary

Modifier and Type	Method and Description
void	fireEvent(com.google.web.bindery.event.shared.Event<?> event)
void	fireEventFromSource(com.google.web.bindery.event.shared.Event<?> event, Object source)

Methods inherited from class com.google.web.bindery.event.shared.SimpleEventBus

addHandler, addHandlerToSource, doRemove, getHandler, getHandlerCount, isEventHandled

Methods inherited from class com.google.web.bindery.event.shared.EventBus

dispatchEvent, setSourceOfEvent

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MvwEventBus

public MvwEventBus()

Method Detail

fireEvent

public void fireEvent(com.google.web.bindery.event.shared.Event<?> event)

Overrides:

fireEvent in class com.google.web.bindery.event.shared.SimpleEventBus

fireEventFromSource

public void fireEventFromSource(com.google.web.bindery.event.shared.Event<?> event,
                                Object source)

Overrides:

fireEventFromSource in class com.google.web.bindery.event.shared.SimpleEventBus