org.apache.activemq.artemis.core.server.cluster.qourum

Interface Quorum

All Known Implementing Classes:

SharedNothingBackupQuorum

public interface Quorum

A quorum can be registered with the QuorumManager to receive notifications about the state of a cluster. It can then use the QuorumManager for the quorum within a cluster to vote on a specific outcome.

Method Summary

Modifier and Type	Method and Description
void	close() called if the quorum manager is stopping so we can clean up
String	getName() the name of the Quorum.
void	nodeDown(Topology topology, long eventUID, String nodeID) called by the quorum when a node in the quorum goes down
void	nodeUp(Topology topology) called by the quorum when a node in the quorum goes up
void	setQuorumManager(QuorumManager quorumManager) called by the quorum manager when a quorum is registered

Method Detail

getName

String getName()

the name of the Quorum. this should be unique and is used to locate the correct quorum to use for voting

setQuorumManager

void setQuorumManager(QuorumManager quorumManager)

called by the quorum manager when a quorum is registered

nodeDown

void nodeDown(Topology topology,
              long eventUID,
              String nodeID)

called by the quorum when a node in the quorum goes down

nodeUp

void nodeUp(Topology topology)

called by the quorum when a node in the quorum goes up

close

void close()

called if the quorum manager is stopping so we can clean up