Package com.day.cq.commons.jcr

Class ObservationUtil

java.lang.Object

com.day.cq.commons.jcr.ObservationUtil

public class ObservationUtil
extends Object

Utility for common JCR Observations

Constructor Summary

Constructors

Constructor	Description
ObservationUtil()

Method Summary

Modifier and Type	Method	Description
static boolean	isExternal(Event event)	On a JCR implementation which supports cluster-aware event processing, checks if the event has originally happened locally (internal) or remotely (external).

Methods inherited from class java.lang.Object

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

Constructor Details

ObservationUtil

public ObservationUtil()

Method Details

isExternal

public static boolean isExternal(Event event)

On a JCR implementation which supports cluster-aware event processing, checks if the event has originally happened locally (internal) or remotely (external).

If the result of this method call is used to filter out external events, the recommended approach is to use one of the following dedicated APIs:

1. Register observation listeners with a

   org.apache.jackrabbit.api.observation.JackrabbitEventFilter

   and specify

   setNoExternal(true)

2. Implement the

   org.apache.jackrabbit.oak.plugins.observation.ExcludeExternal

   marker interface ( Oak-only )

This ensures that external events are not delivered within the cluster only to be filtered away by the receiving listener.

Parameters:

event - The event to be checked.

Returns:

true if the JCR implementation is cluster aware and the event is external.