Package org.alfresco.event.sdk.handling.handler

Interface EventHandler

All Known Subinterfaces:

ChildAssocEventHandler, NodeEventHandler, OnChildAssocCreatedEventHandler, OnChildAssocDeletedEventHandler, OnNodeCreatedEventHandler, OnNodeDeletedEventHandler, OnNodeUpdatedEventHandler, OnPeerAssocCreatedEventHandler, OnPeerAssocDeletedEventHandler, OnPermissionUpdatedEventHandler, PeerAssocEventHandler, PermissionEventHandler

public interface EventHandler

Interface that declares the operations of a repo event handler.

An event handler will be triggered (the method handleEvent will be executed) when:

• The event type matches with the one of the returned by the method getHandledEventTypes
• The event fulfills the conditions specified by the EventFilter returned by the method getEventFilter

This class provides a default implementation for the method getEventFilter that provides an always-true filter. This means that, by default, all events that match the event type will be handled by an event handler.

Method Summary

Modifier and Type	Method	Description
default EventFilter	getEventFilter()	Obtain the EventFilter that any event must fulfill to be handled by this handler.
Set<EventType>	getHandledEventTypes()	Obtain the set of EventType's that this handler will handle.
void	handleEvent(RepoEvent<DataAttributes<Resource>> event)	Handle a RepoEvent that must be treated by this handler.

Method Detail

getHandledEventTypes

Set<EventType> getHandledEventTypes()

Obtain the set of EventType's that this handler will handle.

Returns:

the set of EventType's handled by this handler. Ths value must not be null

getEventFilter

default EventFilter getEventFilter()

Obtain the EventFilter that any event must fulfill to be handled by this handler.

Returns:

the EventFilter to be fulfilled. This value must nor be null

handleEvent

void handleEvent(RepoEvent<DataAttributes<Resource>> event)

Handle a RepoEvent that must be treated by this handler.

Parameters:

event - the corresponding RepoEvent to be handled