org.wso2.broker.coordination.rdbms

Class RdbmsMembershipEventingEngine

java.lang.Object

org.wso2.broker.coordination.rdbms.RdbmsMembershipEventingEngine

public class RdbmsMembershipEventingEngine
extends Object

Class to detect membership changes and write them to the database.

Constructor Summary

Constructors

Constructor and Description
RdbmsMembershipEventingEngine(RdbmsCoordinationDaoImpl coordinationDao) Default constructor.

Method Summary

Modifier and Type	Method and Description
void	addEventListener(RdbmsMembershipListener membershipListener) Method to add a listener to be notified of the cluster membership events.
void	notifyMembershipEvent(List<String> nodes, MembershipEventType membershipEventType, String nodeID) Method to store membership events destined to be read by each node.
void	removeEventListener(RdbmsMembershipListener membershipListener) Method to remove a previously added listener.
void	start(String nodeId, int eventPollingInterval) Method to start the membership listener task.
void	stop() Method to stop the membership listener task.

Methods inherited from class java.lang.Object

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

Constructor Detail

RdbmsMembershipEventingEngine

public RdbmsMembershipEventingEngine(RdbmsCoordinationDaoImpl coordinationDao)

Default constructor.

Method Detail

start

public void start(String nodeId,
                  int eventPollingInterval)

Method to start the membership listener task.

stop

public void stop()

Method to stop the membership listener task.

notifyMembershipEvent

public void notifyMembershipEvent(List<String> nodes,
                                  MembershipEventType membershipEventType,
                                  String nodeID)
                           throws CoordinationException

Method to store membership events destined to be read by each node.

Parameters:

membershipEventType - the type of the membership event as an int

nodeID - the node id which triggered the event

Throws:

CoordinationException - if an error occurs while storing the membership event

addEventListener

public void addEventListener(RdbmsMembershipListener membershipListener)

Method to add a listener to be notified of the cluster membership events.

Parameters:

membershipListener - membership listener object

removeEventListener

public void removeEventListener(RdbmsMembershipListener membershipListener)

Method to remove a previously added listener.

Parameters:

membershipListener - membership listener object