Package de.xima.fc.cluster.interfaces.observer

Interface IClusterTopologyObserver

All Superinterfaces:

Serializable

All Known Implementing Classes:

ClusterTopologyObserver

public interface IClusterTopologyObserver
extends Serializable

An observer that can be used to listen for changes to the cluster topology (e.g. when a node is added or removed from the cluster).

Since:

3.1.0

Author:

XIMA MEDIA GmbH

Method Summary

Modifier and Type	Method	Description
void	addListener(IClusterTopologyListener listener)	Deprecated, for removal: This API element is subject to removal in a future version. listen to ClusterNodeJoinedEvent or ClusterNodeLeftEvent instead
default void	onNodeCrashSuspect(NodeCrashSuspectedEvent event)	Deprecated. This event is not supported anymore.
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)	Deprecated, for removal: This API element is subject to removal in a future version. listen to ClusterNodeJoinedEvent or ClusterNodeLeftEvent instead

Method Detail

onNodeJoined

void onNodeJoined(NodeJoinEvent event)

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

Parameters:

event - Details about the node that joined the cluster.

onNodeLeft

void onNodeLeft(NodeLeftEvent event)

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

Parameters:

event - Details about the node that left the cluster.

onNodeCrashSuspect

@Deprecated
default void onNodeCrashSuspect(NodeCrashSuspectedEvent event)

Deprecated.

This event is not supported anymore. There is no replacement.

Method that should be called when the connection to a node may have been lost. This method should invoke the appropriate listeners added via addListener(IClusterTopologyListener).

Parameters:

event - Details about the node that is suspected to have lost the connection to the cluster.

addListener

@Deprecated(since="8.5.0",
            forRemoval=true)
void addListener(IClusterTopologyListener listener)

Deprecated, for removal: This API element is subject to removal in a future version.

listen to ClusterNodeJoinedEvent or ClusterNodeLeftEvent instead

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

Parameters:

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

removeListener

@Deprecated(since="8.5.0",
            forRemoval=true)
void removeListener(IClusterTopologyListener listener)

Deprecated, for removal: This API element is subject to removal in a future version.

listen to ClusterNodeJoinedEvent or ClusterNodeLeftEvent instead

Removes a listener previously added via addListener(IClusterTopologyListener).

Parameters:

listener - Listener that should not be invoked anymore.