com.sleepycat.db
Class ReplicationManagerAckPolicy

java.lang.Object
  com.sleepycat.db.ReplicationManagerAckPolicy

public final class ReplicationManagerAckPolicy
extends Object

A class that provides definitions for the types of network ack policy to use when transmitting messages between replication sites using the Replication Manager.

Set using the EnvironmentConfig.setReplicationManagerAckPolicy API.

Field Summary

static ReplicationManagerAckPolicy	ALL The master should wait until all replication clients have acknowledged each permanent replication message.
static ReplicationManagerAckPolicy	ALL_PEERS The master should wait until all electable peers have acknowledged each permanent replication message (where "electable peer" means a client capable of being subsequently elected master of the replication group).
static ReplicationManagerAckPolicy	NONE The master should not wait for any client replication message acknowledgments.
static ReplicationManagerAckPolicy	ONE The master should wait until at least one client site has acknowledged each permanent replication message.
static ReplicationManagerAckPolicy	ONE_PEER The master should wait until at least one electable peer has acknowledged each permanent replication message (where "electable peer" means a client capable of being subsequently elected master of the replication group).
static ReplicationManagerAckPolicy	QUORUM The master should wait until it has received acknowledgements from the minimum number of electable peers sufficient to ensure that the effect of the permanent record remains durable if an election is held (where "electable peer" means a client capable of being subsequently elected master of the replication group).

Method Summary

String

toString()

Methods inherited from class java.lang.Object

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

Field Detail

ALL

public static final ReplicationManagerAckPolicy ALL

The master should wait until all replication clients have acknowledged each permanent replication message.

ALL_PEERS

public static final ReplicationManagerAckPolicy ALL_PEERS

The master should wait until all electable peers have acknowledged each permanent replication message (where "electable peer" means a client capable of being subsequently elected master of the replication group).

NONE

public static final ReplicationManagerAckPolicy NONE

The master should not wait for any client replication message acknowledgments.

ONE

public static final ReplicationManagerAckPolicy ONE

The master should wait until at least one client site has acknowledged each permanent replication message.

ONE_PEER

public static final ReplicationManagerAckPolicy ONE_PEER

The master should wait until at least one electable peer has acknowledged each permanent replication message (where "electable peer" means a client capable of being subsequently elected master of the replication group).

QUORUM

public static final ReplicationManagerAckPolicy QUORUM

The master should wait until it has received acknowledgements from the minimum number of electable peers sufficient to ensure that the effect of the permanent record remains durable if an election is held (where "electable peer" means a client capable of being subsequently elected master of the replication group). This is the default acknowledgement policy.

Method Detail

toString

public String toString()

Overrides:

toString in class Object