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

Interface IClusterChannelStateObserver

All Superinterfaces:

Serializable

All Known Implementing Classes:

ClusterChannelStateObserver

public interface IClusterChannelStateObserver
extends Serializable

An observer that can be used to listen for changes to the channel state, such as when the connection a node was established or cut.

Since:

3.1.0

Author:

XIMA MEDIA GmbH

Method Summary

Modifier and Type	Method	Description
void	addListener(IClusterChannelStateListener listener)	Adds a listener that will be invoked when an event related to a change in a channel occurs.
void	closed(ChannelCommunicationData channelData)	Method that should be called when the channel was closed.
void	connected(ChannelCommunicationData channelData)	Method that should be called when the connection to a node was established.
void	disconnected(ChannelCommunicationData channelData)	Method that should be called when the connection to a node was cut.
void	removeListener(IClusterChannelStateListener listener)	Removes a listener previously added via addListener(IClusterChannelStateListener).

Method Detail

connected

void connected(ChannelCommunicationData channelData)

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

Parameters:

channelData - Details about the current state of the channel for the node.

disconnected

void disconnected(ChannelCommunicationData channelData)

Method that should be called when the connection to a node was cut. As long as the channel is not closed, the connection could be established later again. This method should invoke the appropriate listeners added via addListener(IClusterChannelStateListener).

Parameters:

channelData - Details about the current state of the channel for the node.

closed

void closed(ChannelCommunicationData channelData)

Method that should be called when the channel was closed. Once the channel is closed, no more connections can be established anymore. This method should invoke the appropriate listeners added via addListener(IClusterChannelStateListener).

Parameters:

channelData - Details about the current state of the channel for the node.

addListener

void addListener(IClusterChannelStateListener listener)

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

Parameters:

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

removeListener

void removeListener(IClusterChannelStateListener listener)

Removes a listener previously added via addListener(IClusterChannelStateListener).

Parameters:

listener - Listener that should not be invoked anymore.