org.neo4j.causalclustering.core.replication

Class RaftReplicator

java.lang.Object

org.neo4j.kernel.lifecycle.LifecycleAdapter

org.neo4j.causalclustering.core.replication.RaftReplicator

All Implemented Interfaces:

Replicator, org.neo4j.kernel.impl.util.Listener<MemberId>, org.neo4j.kernel.lifecycle.Lifecycle

public class RaftReplicator
extends org.neo4j.kernel.lifecycle.LifecycleAdapter
implements Replicator, org.neo4j.kernel.impl.util.Listener<MemberId>

A replicator implementation suitable in a RAFT context. Will handle resending due to timeouts and leader switches.

Nested Class Summary

Nested classes/interfaces inherited from interface org.neo4j.kernel.lifecycle.Lifecycle

org.neo4j.kernel.lifecycle.Lifecycle.Delegate

Constructor Summary

Constructors

Constructor and Description
RaftReplicator(LeaderLocator leaderLocator, MemberId me, Outbound<MemberId,RaftMessages.RaftMessage> outbound, LocalSessionPool sessionPool, ProgressTracker progressTracker, RetryStrategy retryStrategy)

Method Summary

Modifier and Type	Method and Description
void	receive(MemberId leader)
Future<Object>	replicate(ReplicatedContent command, boolean trackResult) Submit content for replication.
void	shutdown()

Methods inherited from class org.neo4j.kernel.lifecycle.LifecycleAdapter

init, start, stop

Methods inherited from class java.lang.Object

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

Constructor Detail

RaftReplicator

public RaftReplicator(LeaderLocator leaderLocator,
                      MemberId me,
                      Outbound<MemberId,RaftMessages.RaftMessage> outbound,
                      LocalSessionPool sessionPool,
                      ProgressTracker progressTracker,
                      RetryStrategy retryStrategy)

Method Detail

replicate

public Future<Object> replicate(ReplicatedContent command,
                                boolean trackResult)
                         throws InterruptedException

Description copied from interface: Replicator

Submit content for replication. This method does not guarantee that the content actually gets replicated, it merely makes an attempt at replication. Other mechanisms must be used to achieve required delivery semantics.

Specified by:

replicate in interface Replicator

Parameters:

command - The content to replicated.

trackResult - Whether to track the result for this operation.

Returns:

A future that will receive the result when available. Only valid if trackResult is set.

Throws:

InterruptedException

receive

public void receive(MemberId leader)

Specified by:

receive in interface org.neo4j.kernel.impl.util.Listener<MemberId>

shutdown

public void shutdown()

Specified by:

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

Overrides:

shutdown in class org.neo4j.kernel.lifecycle.LifecycleAdapter