org.eclipse.ocl.examples.eventmanager.framework

Class DeferringNotifier

java.lang.Object

org.eclipse.ocl.examples.eventmanager.framework.AdapterCapsule

org.eclipse.ocl.examples.eventmanager.framework.DeferringNotifier

public class DeferringNotifier
extends AdapterCapsule

The DeferringNotifier is responsible for queuing all events that are fired within a command. Is is assumed, that all events that are fired from a connection with an open command belong to that command.

Author:

Daniel Vocke (d044825)

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.HashSet<org.eclipse.emf.common.notify.Notification>	deferredEvents contains the queued events by each connection that has an open command.

Fields inherited from class org.eclipse.ocl.examples.eventmanager.framework.AdapterCapsule

_listener, _listenerType, _manager

Constructor Summary

Constructors

Constructor and Description
DeferringNotifier(java.lang.ref.WeakReference<? extends org.eclipse.emf.common.notify.Adapter> _listenerRef, ListenerTypeEnum _listenerType, EventManager _manager)

Method Summary

Methods

Modifier and Type	Method and Description
void	cancelDeferment() This method is defined here because of convenience reasons.
void	deferNotification() This method is defined here because of convenience reasons.
void	deliverDeferredEvents() This method is defined here because of convenience reasons.
void	fireEvent(org.eclipse.emf.common.notify.Notification event) notifies the encapsulated listener about the passed event

Methods inherited from class org.eclipse.ocl.examples.eventmanager.framework.AdapterCapsule

getListener, getListenerType, isResponsibleFor, toString

Methods inherited from class java.lang.Object

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

Field Detail

deferredEvents

protected java.util.HashSet<org.eclipse.emf.common.notify.Notification> deferredEvents

contains the queued events by each connection that has an open command. The queued events are stored in an EventChain in order to simplyfy the notification of multiple events and to improve performance.

Constructor Detail

DeferringNotifier

public DeferringNotifier(java.lang.ref.WeakReference<? extends org.eclipse.emf.common.notify.Adapter> _listenerRef,
                 ListenerTypeEnum _listenerType,
                 EventManager _manager)

Method Detail

deferNotification

public void deferNotification()

Description copied from class: AdapterCapsule

This method is defined here because of convenience reasons. The implementation can be found in subclasses.

Overrides:

deferNotification in class AdapterCapsule

deliverDeferredEvents

public void deliverDeferredEvents()

Description copied from class: AdapterCapsule

This method is defined here because of convenience reasons. The implementation can be found in subclasses.

Overrides:

deliverDeferredEvents in class AdapterCapsule

cancelDeferment

public void cancelDeferment()

Description copied from class: AdapterCapsule

This method is defined here because of convenience reasons. The implementation can be found in subclasses.

Overrides:

cancelDeferment in class AdapterCapsule

fireEvent

public void fireEvent(org.eclipse.emf.common.notify.Notification event)

Description copied from class: AdapterCapsule

notifies the encapsulated listener about the passed event

Overrides:

fireEvent in class AdapterCapsule

Parameters:

event - the event that will be sent to the listener