Package com.google.gwt.event.shared

Class ResettableEventBus

  • All Implemented Interfaces:
    HasHandlers
    public class ResettableEventBus
extends EventBus
    Wraps {com.google.web.bindery.event.shared.ResettableEventBus} for legacy compatibility.

    • Constructor Detail

      • ResettableEventBus

        public ResettableEventBus​(EventBus wrappedBus)

    • Method Detail

      • addHandler

        public <H> HandlerRegistration addHandler​(Event.Type<H> type,
                                          H handler)
        Description copied from class: EventBus
        Adds an unfiltered handler to receive events of this type from all sources.

        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.

        Overrides:
        addHandler in class EventBus
        Type Parameters:
        H - The type of handler
        Parameters:
        type - the event type associated with this handler
        handler - the handler
        Returns:
        the handler registration, can be stored in order to remove the handler later

      • addHandlerToSource

        public <H> HandlerRegistration addHandlerToSource​(Event.Type<H> type,
                                                  java.lang.Object source,
                                                  H handler)
        Description copied from class: EventBus
        Adds a handler to receive events of this type from the given source.

        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.

        Overrides:
        addHandlerToSource in class EventBus
        Type Parameters:
        H - The type of handler
        Parameters:
        type - the event type associated with this handler
        source - the source associated with this handler
        handler - the handler
        Returns:
        the handler registration, can be stored in order to remove the handler later

      • fireEvent

        public void fireEvent​(Event<?> event)
        Description copied from class: EventBus
        Fires the event from no source. Only unfiltered handlers will receive it.

        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.

        Overrides:
        fireEvent in class EventBus
        Parameters:
        event - the event to fire

      • fireEvent

        public void fireEvent​(GwtEvent<?> event)
        Description copied from interface: HasHandlers
        Fires the given event to the handlers listening to the event's type.

        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.

        Specified by:
        fireEvent in interface HasHandlers
        Specified by:
        fireEvent in class EventBus
        Parameters:
        event - the event

      • fireEventFromSource

        public void fireEventFromSource​(Event<?> event,
                                java.lang.Object source)
        Description copied from class: EventBus
        Fires the given event to the handlers listening to the event's type.

        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.

        Overrides:
        fireEventFromSource in class EventBus
        Parameters:
        event - the event to fire

      • removeHandlers

        public void removeHandlers()

      • getRegistrationSize

        int getRegistrationSize()
        Visible for testing.