public class ResettableEventBus extends EventBus
| Constructor and Description |
|---|
ResettableEventBus(EventBus wrappedBus) |
| 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,
java.lang.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,
java.lang.Object source)
Fires the given event to the handlers listening to the event's type.
|
protected int |
getRegistrationSize()
Visible for testing.
|
void |
removeHandlers()
Remove all handlers that have been added through this wrapper.
|
dispatchEvent, setSourceOfEventpublic ResettableEventBus(EventBus wrappedBus)
public <H> HandlerRegistration addHandler(Event.Type<H> type, H handler)
EventBus
It 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, java.lang.Object source, H handler)
EventBus
It 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)
EventBus
Any 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.
public void fireEventFromSource(Event<?> event, java.lang.Object source)
EventBus
Any 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 firepublic void removeHandlers()
protected int getRegistrationSize()