public class SimpleEventBus extends EventBus
EventBus.| Constructor and Description |
|---|
SimpleEventBus() |
| Modifier and Type | Method and Description |
|---|---|
<H> HandlerRegistration |
addHandler(Event.Type<H> type,
H handler)
Adds an unfiltered handler to receive events of this type from all sources.
|
<H> HandlerRegistration |
addHandlerToSource(Event.Type<H> type,
Object source,
H handler)
Adds a handler to receive events of this type from the given source.
|
void |
fireEvent(Event<?> event)
Fires the event from no source.
|
void |
fireEventFromSource(Event<?> event,
Object source)
Fires the given event to the handlers listening to the event's type.
|
dispatchEvent, setSourceOfEventpublic <H> HandlerRegistration addHandler(Event.Type<H> type, H handler)
EventBusIt is rare to call this method directly. More typically an Event subclass will
provide a static register method, or a widget will accept handlers directly.
addHandler in class EventBusH - The type of handlertype - the event type associated with this handlerhandler - the handlerpublic <H> HandlerRegistration addHandlerToSource(Event.Type<H> type, Object source, H handler)
EventBusIt is rare to call this method directly. More typically a Event subclass will
provide a static register method, or a widget will accept handlers directly.
addHandlerToSource in class EventBusH - The type of handlertype - the event type associated with this handlersource - the source associated with this handlerhandler - the handlerpublic void fireEvent(Event<?> event)
EventBusAny exceptions thrown by handlers will be bundled into a UmbrellaException and then
re-thrown after all handlers have completed. An exception thrown by a handler will not prevent
other handlers from executing.
fireEvent in interface HasHandlersfireEvent in class EventBusevent - the event to firepublic void fireEventFromSource(Event<?> event, Object source)
EventBusAny exceptions thrown by handlers will be bundled into a UmbrellaException and then
re-thrown after all handlers have completed. An exception thrown by a handler will not prevent
other handlers from executing.
fireEventFromSource in class EventBusevent - the event to fireCopyright © 2020. All rights reserved.