alluxio.master.journal.raft

Class SnapshotIdJournaled

java.lang.Object

alluxio.master.journal.SingleEntryJournaled

alluxio.master.journal.raft.SnapshotIdJournaled

All Implemented Interfaces:

Checkpointed, Journaled, JournalEntryIterable

public class SnapshotIdJournaled
extends SingleEntryJournaled

Simple implementation to write and recover the snapshot ID when checkpointing. The snapshot ID is a long that represents the sequence number of the last entry that was processed by the journal. The snapshot ID will be inserted into and retrieved through the Journal.JournalEntry.Builder#setSequenceNumber(long) and Journal.JournalEntry.Builder#getSequenceNumber() methods, respectively.

Field Summary

Fields inherited from interface alluxio.master.journal.checkpoint.Checkpointed

LOG

Constructor Summary

Constructors

Constructor and Description
SnapshotIdJournaled()

Method Summary

Modifier and Type	Method and Description
CheckpointName	getCheckpointName()

Methods inherited from class alluxio.master.journal.SingleEntryJournaled

getEntry, getJournalEntryIterator, processJournalEntry, resetState

Methods inherited from class java.lang.Object

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

Methods inherited from interface alluxio.master.journal.Journaled

applyAndJournal, restoreFromCheckpoint, writeToCheckpoint

Methods inherited from interface alluxio.master.journal.checkpoint.Checkpointed

restoreFromCheckpoint, writeToCheckpoint

Constructor Detail

SnapshotIdJournaled

public SnapshotIdJournaled()

Method Detail

getCheckpointName

public CheckpointName getCheckpointName()

Returns:

a name for this checkpointed class