Package de.xima.fc.cluster.observer

Class ClusterTopologyObserver

java.lang.Object

de.xima.fc.cluster.observer.ClusterTopologyObserver

All Implemented Interfaces:

IClusterTopologyObserver, Serializable

public class ClusterTopologyObserver
extends Object
implements IClusterTopologyObserver

Default implementation of IClusterTopologyObserver that delegates to the registered IClusterTopologyListener.

Since:

3.1.0

Author:

XIMA MEDIA GmbH

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ClusterTopologyObserver()

Method Summary

Modifier and Type	Method	Description
void	addListener(IClusterTopologyListener listener)	Adds a listener that will be invoked when an event related to a change in the cluster topology occurs.
void	onNodeJoined(NodeJoinEvent event)	Method that should be called when a node was added to the cluster.
void	onNodeLeft(NodeLeftEvent event)	Method that should be called when a node was removed from the cluster.
void	removeListener(IClusterTopologyListener listener)	Removes a listener previously added via IClusterTopologyObserver.addListener(IClusterTopologyListener).

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.xima.fc.cluster.interfaces.observer.IClusterTopologyObserver

onNodeCrashSuspect

Constructor Details

ClusterTopologyObserver

public ClusterTopologyObserver()

Method Details

onNodeJoined

public void onNodeJoined(NodeJoinEvent event)

Description copied from interface: IClusterTopologyObserver

Method that should be called when a node was added to the cluster. This method should invoke the appropriate listeners added via IClusterTopologyObserver.addListener(IClusterTopologyListener).

Specified by:

onNodeJoined in interface IClusterTopologyObserver

Parameters:

event - Details about the node that joined the cluster.

onNodeLeft

public void onNodeLeft(NodeLeftEvent event)

Description copied from interface: IClusterTopologyObserver

Method that should be called when a node was removed from the cluster. This method should invoke the appropriate listeners added via IClusterTopologyObserver.addListener(IClusterTopologyListener).

Specified by:

onNodeLeft in interface IClusterTopologyObserver

Parameters:

event - Details about the node that left the cluster.

addListener

public void addListener(IClusterTopologyListener listener)

Description copied from interface: IClusterTopologyObserver

Adds a listener that will be invoked when an event related to a change in the cluster topology occurs.

Specified by:

addListener in interface IClusterTopologyObserver

Parameters:

listener - Listener to add that will be invoked when an event occurs.

removeListener

public void removeListener(IClusterTopologyListener listener)

Description copied from interface: IClusterTopologyObserver

Removes a listener previously added via IClusterTopologyObserver.addListener(IClusterTopologyListener).

Specified by:

removeListener in interface IClusterTopologyObserver

Parameters:

listener - Listener that should not be invoked anymore.