[ https://issues.jboss.org/browse/CDI-4?page=com.atlassian.jira.plugin.syst... ] Lincoln Baxter III edited comment on CDI-4 at 5/10/11 1:34 PM: --------------------------------------------------------------- If we add this API, I'd also like to see an SPI that can be used in tandem, so that Event firing may additionally be controlled using custom annotations and an Event firing controller. For instance: {code}@EventBinding public annotation Controlled { ... values ...}{code} {code}(a)Controlled(Type.DELTA) public class EventInstance {...}{code} Where the annotation is bound to the controller just like we do for Interceptors and Decorators (which also need an ordering solution if I am not mistaken.) {code}public class Bean { @Inject BeanManager manager; public void fireEvent() { manager.fire(new EventInstance()); } }{code} The controller is then passed control of the event firing: {code} @EventBinding @Controlled public class CustomController implements EventController { @Override public void performEvent(EventInstance<?> event, Controlled anno, Set<ObserverInstance> observers) { // this method can sort through the list of observers and fire the event for each observer in order as it sees fit. for( ObserverInstance o : observers ) { if(Type.DELTA.equals(anno.type())) o.fire(event.getEvent()) else o.fire(new EventInstance("foo")); } } } {code} This would effectively enable custom ordering and fire-control, without additional coupling or implementation specific details. However, I don't believe that @Before and @After could be implemented using this SPI; this would be an additional feature that could take advantage of the @Before or @After hints if desired. was (Author: lincolnthree): If we add this API, I'd also like to see an SPI that can be used in tandem, so that Event firing may additionally be controlled using custom annotations and an Event firing controller. For instance: {code}@EventBinding public annotation Controlled { ... values ...}{code} {code}(a)Controlled(Type.DELTA) public class EventInstance {...}{code} Where the annotation is bound to the controller just like we do for Interceptors and Decorators (which also need an ordering solution if I am not mistaken.) {code} @EventBinding @Controlled public class CustomController implements EventController { @Override public void performEvent(EventInstance<?> event, Controlled anno, Set<ObserverInstance> observers) { // this method can sort through the list of observers and fire the event for each observer in order as it sees fit. for( ObserverInstance o : observers ) { if(Type.DELTA.equals(anno.type())) o.fire(event.getEvent()) else o.fire(new EventInstance("foo")); } } } {code} This would effectively enable custom ordering and fire-control, without additional coupling or implementation specific details. However, I don't believe that @Before and @After could be implemented using this SPI; this would be an additional feature that could take advantage of the @Before or @After hints if desired. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira