com.sleepycat.je.rep.stream

Class SubscriberFeederSyncup

java.lang.Object

com.sleepycat.je.rep.stream.SubscriberFeederSyncup

public class SubscriberFeederSyncup
extends Object

Object to sync-up the Feeder and Subscriber to establish the VLSN from which subscriber should should start stream log entries from feeder.

Constructor Summary

Constructors

Constructor and Description
SubscriberFeederSyncup(NamedChannel namedChannel, Protocol protocol, FeederFilter filter, RepImpl repImpl, BaseProtocol.EntryRequestType type, String partGenDBName, Logger logger)

Method Summary

Modifier and Type	Method and Description
VLSN	execute(VLSN reqVLSN) Execute sync-up to the Feeder.
DatabaseId	getPartGenDBId() Returns Partition Generation DB Id

Methods inherited from class java.lang.Object

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

Constructor Detail

SubscriberFeederSyncup

public SubscriberFeederSyncup(NamedChannel namedChannel,
                              Protocol protocol,
                              FeederFilter filter,
                              RepImpl repImpl,
                              BaseProtocol.EntryRequestType type,
                              String partGenDBName,
                              Logger logger)

Method Detail

execute

public VLSN execute(VLSN reqVLSN)
             throws InternalException

Execute sync-up to the Feeder. Request Feeder to start a replication stream from a start VLSN, if it is available. Otherwise return NULL VLSN to subscriber.

Parameters:

reqVLSN - VLSN requested by subscriber to stream log entries

Returns:

start VLSN from subscribe can stream log entries

Throws:

InternalException - if fail to execute syncup

getPartGenDBId

public DatabaseId getPartGenDBId()

Returns Partition Generation DB Id

Returns:

partition generation db id, null if not initialized