net.sf.mmm.util.event.base

Class AbstractEventBus.EventDispatcher<E>

java.lang.Object

net.sf.mmm.util.event.base.AbstractEventBus.EventDispatcher<E>

Type Parameters:

E - is the generic event type.

Enclosing class:

AbstractEventBus

protected static class AbstractEventBus.EventDispatcher<E>
extends Object

A dispatcher for all EventListeners of a particular event type.

Field Summary

Fields

Modifier and Type	Field and Description
private Collection<AbstractEventBus.EventListenerContainer<E>>	containerList
private AbstractEventBus.EventDispatcher<? super E>	parentDispatcher

Constructor Summary

Constructors

Constructor and Description
EventDispatcher(AbstractEventBus.EventDispatcher<? super E> parent, CollectionFactory<?> collectionFactory) The constructor.

Method Summary

Modifier and Type	Method and Description
boolean	handleEvent(E event, Collection<Throwable> errors)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

parentDispatcher

private final AbstractEventBus.EventDispatcher<? super E> parentDispatcher

See Also:

handleEvent(Object, Collection)

containerList

private final Collection<AbstractEventBus.EventListenerContainer<E>> containerList

See Also:

handleEvent(Object, Collection)

Constructor Detail

EventDispatcher

public EventDispatcher(AbstractEventBus.EventDispatcher<? super E> parent,
                       CollectionFactory<?> collectionFactory)

The constructor.

Parameters:

parent - is the AbstractEventBus.EventDispatcher responsible for the super-class or null if this is the root AbstractEventBus.EventDispatcher responsible for Object.

collectionFactory - is the CollectionFactory used to create Collections e.g. for the AbstractEventBus.EventListenerContainers.

Method Detail

handleEvent

public boolean handleEvent(E event,
                           Collection<Throwable> errors)

Parameters:

event - is the Event to dispatch.

errors - is a Collection where potential exceptions thrown by event handlers will be added.

Returns:

true if the event has actually been dispatched, false otherwise.

See Also:

EventListener.handleEvent(Object)