org.neo4j.kernel.ha.cluster
Class HighAvailabilityModeSwitcher

java.lang.Object
  org.neo4j.kernel.ha.cluster.HighAvailabilityModeSwitcher

All Implemented Interfaces:

HighAvailabilityMemberListener, org.neo4j.kernel.lifecycle.Lifecycle

public class HighAvailabilityModeSwitcher
extends Object
implements HighAvailabilityMemberListener, org.neo4j.kernel.lifecycle.Lifecycle

Performs the internal switches from pending to slave/master, by listening for ClusterMemberChangeEvents. When finished it will invoke ClusterMemberAvailability.memberIsAvailable(String, URI) to announce to the cluster it's new status.

Nested Class Summary

Nested classes/interfaces inherited from interface org.neo4j.kernel.ha.cluster.HighAvailabilityMemberListener

HighAvailabilityMemberListener.Adapter

Field Summary

static String	MASTER
static String	SLAVE

Constructor Summary

HighAvailabilityModeSwitcher(DelegateInvocationHandler delegateHandler, org.neo4j.cluster.member.ClusterMemberAvailability clusterMemberAvailability, HighAvailabilityMemberStateMachine stateHandler, org.neo4j.kernel.GraphDatabaseAPI graphDb, HaIdGeneratorFactory idGeneratorFactory, org.neo4j.kernel.configuration.Config config, org.neo4j.kernel.logging.Logging logging, org.neo4j.kernel.impl.api.UpdateableSchemaState updateableSchemaState)

Method Summary

static int	getServerId(URI haUri)
void	init()
void	instanceStops(HighAvailabilityMemberChangeEvent event)
void	masterIsAvailable(HighAvailabilityMemberChangeEvent event)
void	masterIsElected(HighAvailabilityMemberChangeEvent event)
void	shutdown()
void	slaveIsAvailable(HighAvailabilityMemberChangeEvent event)
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Field Detail

MASTER

public static final String MASTER

See Also:

Constant Field Values

SLAVE

public static final String SLAVE

See Also:

Constant Field Values

Constructor Detail

HighAvailabilityModeSwitcher

public HighAvailabilityModeSwitcher(DelegateInvocationHandler delegateHandler,
                                    org.neo4j.cluster.member.ClusterMemberAvailability clusterMemberAvailability,
                                    HighAvailabilityMemberStateMachine stateHandler,
                                    org.neo4j.kernel.GraphDatabaseAPI graphDb,
                                    HaIdGeneratorFactory idGeneratorFactory,
                                    org.neo4j.kernel.configuration.Config config,
                                    org.neo4j.kernel.logging.Logging logging,
                                    org.neo4j.kernel.impl.api.UpdateableSchemaState updateableSchemaState)

Method Detail

getServerId

public static int getServerId(URI haUri)

init

public void init()
          throws Throwable

Specified by:

init in interface org.neo4j.kernel.lifecycle.Lifecycle

Throws:

Throwable

start

public void start()
           throws Throwable

Specified by:

start in interface org.neo4j.kernel.lifecycle.Lifecycle

Throws:

Throwable

stop

public void stop()
          throws Throwable

Specified by:

stop in interface org.neo4j.kernel.lifecycle.Lifecycle

Throws:

Throwable

shutdown

public void shutdown()
              throws Throwable

Specified by:

shutdown in interface org.neo4j.kernel.lifecycle.Lifecycle

Throws:

Throwable

masterIsElected

public void masterIsElected(HighAvailabilityMemberChangeEvent event)

Specified by:

masterIsElected in interface HighAvailabilityMemberListener

masterIsAvailable

public void masterIsAvailable(HighAvailabilityMemberChangeEvent event)

Specified by:

masterIsAvailable in interface HighAvailabilityMemberListener

slaveIsAvailable

public void slaveIsAvailable(HighAvailabilityMemberChangeEvent event)

Specified by:

slaveIsAvailable in interface HighAvailabilityMemberListener

instanceStops

public void instanceStops(HighAvailabilityMemberChangeEvent event)

Specified by:

instanceStops in interface HighAvailabilityMemberListener