Constructor and Description |
---|
CountingEventBus() |
CountingEventBus(EventBus wrapped) |
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.
|
int |
getCount(Event.Type<?> type)
Deprecated.
Please use
getHandlerCount . |
int |
getFiredCount(Event.Type<?> type)
How many events have fired for the given
type . |
int |
getFiredCountFromSource(Event.Type<?> type,
java.lang.Object source)
How many events have fired for the given pairing of
type and source . |
int |
getHandlerCount(Event.Type<?> type)
How many handlers are registered for the given
type . |
dispatchEvent, setSourceOfEvent
public CountingEventBus()
public CountingEventBus(EventBus wrapped)
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 EventBus
H
- 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 EventBus
H
- 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 EventBus
event
- the event to fire@Deprecated public int getCount(Event.Type<?> type)
getHandlerCount
.type
.public int getFiredCount(Event.Type<?> type)
type
. These events may not have been
passed to any handlers.public int getFiredCountFromSource(Event.Type<?> type, java.lang.Object source)
type
and source
. These
events may not have been passed to any handlers.public int getHandlerCount(Event.Type<?> type)
type
.