org.modeshape.graph.observe
Class NetChangeObserver

java.lang.Object
  org.modeshape.graph.observe.ChangeObserver
      org.modeshape.graph.observe.NetChangeObserver

All Implemented Interfaces:

Observer

Direct Known Subclasses:

RepositoryService.ConfigurationChangeObserver, SequencingService.RepositoryObserver

@ThreadSafe
public abstract class NetChangeObserver
extends ChangeObserver

A specialized Observer that figures out the net changes made during a single set of changes. For example, if a property is updated and then updated again, the net change will be a single change. Or, if a node is created and then deleted, no net change will be observed.

Nested Class Summary

protected class	NetChangeObserver.ChangeContext Representation of the context in which a set of changes are being made.
static class	NetChangeObserver.ChangeType
static class	NetChangeObserver.NetChange A notification of changes to a node.
static class	NetChangeObserver.NetChanges A set of net changes that were made atomically.

Nested classes/interfaces inherited from class org.modeshape.graph.observe.ChangeObserver

ChangeObserver.ChangeSourceReference

Constructor Summary

protected

NetChangeObserver()

Method Summary

void	notify(Changes changes) Method that is called for each Changes from the Observable instance(s) with which this listener is registered.
protected abstract void	notify(NetChangeObserver.NetChanges netChanges) Method that is called for the set of net changes.

Methods inherited from class org.modeshape.graph.observe.ChangeObserver

doUnregister, isRegistered, unregister

Methods inherited from class java.lang.Object

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

Constructor Detail

NetChangeObserver

protected NetChangeObserver()

Method Detail

notify

public void notify(Changes changes)

Method that is called for each Changes from the Observable instance(s) with which this listener is registered.

Specified by:

notify in interface Observer

Specified by:

notify in class ChangeObserver

Parameters:

changes - the change set

See Also:

ChangeObserver.notify(org.modeshape.graph.observe.Changes)

notify

protected abstract void notify(NetChangeObserver.NetChanges netChanges)

Method that is called for the set of net changes.

Parameters:

netChanges - the net changes; never null