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java.lang.Objectcom.google.web.bindery.event.shared.EventBus
com.google.web.bindery.event.shared.SimpleEventBus
public class SimpleEventBus
Basic implementation of EventBus.
| Constructor Summary | |
|---|---|
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SimpleEventBus()
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protected |
SimpleEventBus(boolean fireInReverseOrder)
Deprecated. This is a legacy feature, required by GWT's old HandlerManager. Reverse order is not honored for handlers tied to a specific event source (via addHandlerToSource(com.google.web.bindery.event.shared.Event.Type. |
| Method Summary | ||
|---|---|---|
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addHandler(Event.Type<H> type,
H handler)
Adds an unfiltered handler to receive events of this type from all sources. |
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addHandlerToSource(Event.Type<H> type,
java.lang.Object source,
H handler)
Adds a handler to receive events of this type from the given source. |
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protected
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doRemove(Event.Type<H> type,
java.lang.Object source,
H handler)
Deprecated. required by legacy features in GWT's old HandlerManager |
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void |
fireEvent(Event<?> event)
Fires the event from no source. |
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void |
fireEventFromSource(Event<?> event,
java.lang.Object source)
Fires the given event to the handlers listening to the event's type. |
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protected
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getHandler(Event.Type<H> type,
int index)
Deprecated. required by legacy features in GWT's old HandlerManager |
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protected int |
getHandlerCount(Event.Type<?> eventKey)
Deprecated. required by legacy features in GWT's old HandlerManager |
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protected boolean |
isEventHandled(Event.Type<?> eventKey)
Deprecated. required by legacy features in GWT's old HandlerManager |
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| Methods inherited from class com.google.web.bindery.event.shared.EventBus |
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dispatchEvent, setSourceOfEvent |
| Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public SimpleEventBus()
@Deprecated protected SimpleEventBus(boolean fireInReverseOrder)
addHandlerToSource(com.google.web.bindery.event.shared.Event.Type, java.lang.Object, H) .
| Method Detail |
|---|
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 handler
public <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 handler
public 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.
fireEvent in class EventBusevent - the event to fire
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 fire
@Deprecated
protected <H> void doRemove(Event.Type<H> type,
java.lang.Object source,
H handler)
@Deprecated
protected <H> H getHandler(Event.Type<H> type,
int index)
@Deprecated protected int getHandlerCount(Event.Type<?> eventKey)
@Deprecated protected boolean isEventHandled(Event.Type<?> eventKey)
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