[jboss-user] [JBoss Seam] - Events..

[tony.herstell@gmail.com]

I have an Entity and am trying to get it to throw an event when the number of riders changes  (this is mapped to the View naturally)...

I have tried with just two annotation (thrower and catcher) to no avail... now I have added EVERYTHING in and it still does not work; what am I missing?

Entity...

  | @SuppressWarnings("serial")
  | @Entity // Defines this as an Entity that is a class mapped to the Datastore.
  | @Name("bookingResourceArena") // Name used within SEAM for an instance of this class.
  | @DiscriminatorValue("WithArena")
  | public class BookingResourceWithRiders extends BookingResourceWithHoursRange implements Serializable {
  | 
  | ...
  | 
  |     @RaiseEvent("RiderNumbersChanged")
  |     public void setRiders(int number) {
  |         this.riders = number;
  |         Events.instance().raiseEvent("RiderNumbersChanged");
  |     }
  | 

Controller...

  | @SuppressWarnings("serial")
  | @Stateful
  | // A new component is created or re-initialised and re-used each time it is
  | // called.
  | @Name("bookingController")
  | // Name used within SEAM for an instance of this class.
  | @Conversational
  | // Scope that this class exists in.
  | public class BookingControllerImpl implements BookingController, Serializable {
  | 
  | ...
  | 
  | 	@TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED)
  | 	@Observer("RiderNumbersChanged")
  | 	public void changeRiderNumbers() {
  | 		log.info(">changeRiderNumbers");
  | 		log.info("<changeRiderNumbers");
  | 	}
  | 

components.xml

  | 	<event type="RiderNumbersChanged">
  | 		<action expression="#{bookingController.changeRiderNumbers}" />
  | 	</event>
  | 


Chunk off screen

  | <!-- Number of Riders (Arenas) -->
  | <rich:column colspan="3" breakBefore="true"
  | 	rendered="#{(bookingController.reason == 'ONE_HOUR_PRIVATE' || bookingController.reason == 'ONE_HOUR_OPEN') 
  | 		and (eachResource.resource.kind == 'INDOOR_ARENA' || eachResource.resource.kind == 'DRESSAGE_ARENA' || eachResource.resource.kind == 'SJ_ARENA')}">
  | 	<h:outputText value="#{messages.booking_number_of_riders}" />
  | 	<rich:inputNumberSpinner id="riderNumbers" immediate="true" enableManualInput="false"
  | 		minValue="1" maxValue="6" step="1" value="#{eachResource.riders}">
  | 		<a4j:support event="onchange" eventsQueue="eventsQueue" requestDelay="2000" />
  | 	</rich:inputNumberSpinner>
  | </rich:column>
  | 

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