org.neo4j.kernel.ha.cluster

Class SwitchToSlave

java.lang.Object

org.neo4j.kernel.ha.cluster.SwitchToSlave

Direct Known Subclasses:

SwitchToSlaveBranchThenCopy, SwitchToSlaveCopyThenBranch

public abstract class SwitchToSlave
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	SwitchToSlave.Monitor Monitors events in SwitchToSlave

Method Summary

Modifier and Type	Method and Description
URI	switchToSlave(org.neo4j.kernel.lifecycle.LifeSupport haCommunicationLife, URI me, URI masterUri, org.neo4j.helpers.CancellationRequest cancellationRequest) Performs a switch to the slave state.

Methods inherited from class java.lang.Object

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

Method Detail

switchToSlave

public URI switchToSlave(org.neo4j.kernel.lifecycle.LifeSupport haCommunicationLife,
                         URI me,
                         URI masterUri,
                         org.neo4j.helpers.CancellationRequest cancellationRequest)
                  throws Throwable

Performs a switch to the slave state. Starts the communication endpoints, switches components to the slave state and ensures that the current database is appropriate for this cluster. It also broadcasts the appropriate Slave Is Available event

Parameters:

haCommunicationLife - The LifeSupport instance to register the network facilities required for communication with the rest of the cluster

me - The URI this instance must bind to

masterUri - The URI of the master for which this instance must become slave to

cancellationRequest - A handle for gracefully aborting the switch

Returns:

The URI that was broadcasted as the slave endpoint or null if the task was cancelled

Throws:

Throwable