Package org.silverpeas.core.notification.system

Class CDIResourceEventListener<T extends ResourceEvent>

java.lang.Object

org.silverpeas.core.notification.system.CDIResourceEventListener<T>

All Implemented Interfaces:

ResourceEventListener<T>

Direct Known Subclasses:

AbstractProfiledResourceSubscriptionListener, AttachmentSharingListener, AttachmentWebdavListener, CalendarUserEventListener, ChatUserEventListener, CommentUserNotificationService, ContributionEventProcessor, MyLinksUserEventListener, NodeSharingListener, NotificationUserEventListener, PdcGroupEventListener, PdcNodeEventListener, PdcUserEventListener, PersonalizationSpaceEventListener, PublicationSharingListener, PublicationTemplateUserEventListener, RelationShipListener, SocialNetworkUserListener, SubscriptionGroupEventListener, SubscriptionUserEventListener, UserPreferenceEventListener, UserPreferenceReminderListener, UserReminderListener

public abstract class CDIResourceEventListener<T extends ResourceEvent>
extends Object
implements ResourceEventListener<T>

A synchronous event listener using the notification bus of CDI. This bus is based on the Observer pattern but by using the annotations in place of code lines to setup listeners and so on.

Synchronous events are carried within a specific CDI event and are collected by this abstract class. All concrete listeners have just to extend this abstract class and to implement some of the following methods to transparently receive the events on which they are interested:

• org.silverpeas.core.notification.system.ResourceEventListener#onCreation(ResourceEvent to receive events about the creation of a resource,
• org.silverpeas.core.notification.system.ResourceEventListener#onUpdate(ResourceEvent to receive events about the update of a resource,
• org.silverpeas.core.notification.system.ResourceEventListener#onRemoving(ResourceEvent to receive events about the removing of a resource,
• org.silverpeas.core.notification.system.ResourceEventListener#onDeletion(ResourceEvent to receive events about the deletion of a resource,

Author:

mmoquillon

Field Summary

Fields

Modifier and Type	Field	Description
protected SilverLogger	logger

Constructor Summary

Constructors

Constructor	Description
CDIResourceEventListener()

Method Summary

Modifier and Type	Method	Description
void	onEvent(T event)	Listens for events related to a resource managed in Silverpeas.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.silverpeas.core.notification.system.ResourceEventListener

dispatchEvent, isEnabled, onCreation, onDeletion, onMove, onRemoving, onUnlock, onUpdate

Field Detail

logger

protected final SilverLogger logger

Constructor Detail

CDIResourceEventListener

public CDIResourceEventListener()

Method Detail

onEvent

public void onEvent(@Observes
                    T event)
             throws Exception

Listens for events related to a resource managed in Silverpeas.

The event is decoded from the specified message and according to the type of the event, the adequate method is then invoked.

Parameters:

event - an event.

Throws:

Exception - if the processing of the event fails.

See Also:

ResourceEventListener.dispatchEvent(ResourceEvent)