Package org.elasticsearch.discovery.single

Class SingleNodeDiscovery

java.lang.Object

org.elasticsearch.common.component.AbstractLifecycleComponent

org.elasticsearch.discovery.single.SingleNodeDiscovery

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, LifecycleComponent, Releasable, Discovery

public class SingleNodeDiscovery
extends AbstractLifecycleComponent
implements Discovery

A discovery implementation where the only member of the cluster is the local node.

Nested Class Summary

Nested classes/interfaces inherited from interface org.elasticsearch.discovery.Discovery

Discovery.AckListener, Discovery.FailedToCommitClusterStateException

Field Summary

Fields

Modifier and Type	Field	Description
protected TransportService	transportService

Fields inherited from class org.elasticsearch.common.component.AbstractLifecycleComponent

lifecycle

Constructor Summary

Constructors

Constructor	Description
SingleNodeDiscovery(Settings settings, TransportService transportService, MasterService masterService, ClusterApplier clusterApplier)

Method Summary

Modifier and Type	Method	Description
protected ClusterState	createInitialState(DiscoveryNode localNode)
protected void	doClose()
protected void	doStart()
protected void	doStop()
void	publish(ClusterChangedEvent event, Discovery.AckListener ackListener)	Publish all the changes to the cluster from the master (can be called just by the master).
void	startInitialJoin()	Triggers the first join cycle
DiscoveryStats	stats()

Methods inherited from class org.elasticsearch.common.component.AbstractLifecycleComponent

addLifecycleListener, close, lifecycleState, removeLifecycleListener, start, stop

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.elasticsearch.common.component.LifecycleComponent

addLifecycleListener, lifecycleState, removeLifecycleListener, start, stop

Methods inherited from interface org.elasticsearch.common.lease.Releasable

close

Field Detail

transportService

protected final TransportService transportService

Constructor Detail

SingleNodeDiscovery

public SingleNodeDiscovery(Settings settings,
                           TransportService transportService,
                           MasterService masterService,
                           ClusterApplier clusterApplier)

Method Detail

publish

public void publish(ClusterChangedEvent event,
                    Discovery.AckListener ackListener)

Description copied from interface: Discovery

Publish all the changes to the cluster from the master (can be called just by the master). The publish process should apply this state to the master as well! The Discovery.AckListener allows to keep track of the ack received from nodes, and verify whether they updated their own cluster state or not. The method is guaranteed to throw a Discovery.FailedToCommitClusterStateException if the change is not committed and should be rejected. Any other exception signals the something wrong happened but the change is committed.

Specified by:

publish in interface Discovery

stats

public DiscoveryStats stats()

Specified by:

stats in interface Discovery

Returns:

stats about the discovery

startInitialJoin

public void startInitialJoin()

Description copied from interface: Discovery

Triggers the first join cycle

Specified by:

startInitialJoin in interface Discovery

doStart

protected void doStart()

Specified by:

doStart in class AbstractLifecycleComponent

createInitialState

protected ClusterState createInitialState(DiscoveryNode localNode)

doStop

protected void doStop()

Specified by:

doStop in class AbstractLifecycleComponent

doClose

protected void doClose()
                throws java.io.IOException

Specified by:

doClose in class AbstractLifecycleComponent

Throws:

java.io.IOException