org.cometd.oort

Class OortList.DeltaListener<E>

java.lang.Object

org.cometd.oort.OortList.DeltaListener<E>

Type Parameters:

E - the element type

All Implemented Interfaces:

EventListener, OortObject.Listener<List<E>>

Enclosing class:

OortList<E>

public static class OortList.DeltaListener<E>
extends Object
implements OortObject.Listener<List<E>>

An implementation of Listener that converts whole list events into OortList.ElementListener events.

For example, if an entity list:

 [A, B]
 

is replaced by a list:

 [A, C, D]
 

then this listener generates two "add" events for C and D and one "remove" event for B.

Constructor Summary

Constructors

Constructor and Description
DeltaListener(OortList<E> oortList)

Method Summary

Modifier and Type	Method and Description
void	onRemoved(OortObject.Info<List<E>> info) Callback method invoked when the object value is removed, for example because the correspondent node has been shut down or crashed.
void	onUpdated(OortObject.Info<List<E>> oldInfo, OortObject.Info<List<E>> newInfo) Callback method invoked when the object value is updated.

Methods inherited from class java.lang.Object

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

Constructor Detail

DeltaListener

public DeltaListener(OortList<E> oortList)

Method Detail

onUpdated

public void onUpdated(OortObject.Info<List<E>> oldInfo,
                      OortObject.Info<List<E>> newInfo)

Description copied from interface: OortObject.Listener

Callback method invoked when the object value is updated.

Specified by:

onUpdated in interface OortObject.Listener<List<E>>

Parameters:

oldInfo - the OortObject.Info before the change, may be null

newInfo - the OortObject.Info after the change

onRemoved

public void onRemoved(OortObject.Info<List<E>> info)

Description copied from interface: OortObject.Listener

Callback method invoked when the object value is removed, for example because the correspondent node has been shut down or crashed.

Specified by:

onRemoved in interface OortObject.Listener<List<E>>

Parameters:

info - the OortObject.Info before the removal