alluxio.master.journal

Interface JournalEntryStateMachine

All Superinterfaces:

JournalEntryIterable

All Known Subinterfaces:

BlockMaster, FileSystemMaster, KeyValueMaster, LineageMaster, Master, MetaMaster, MetricsMaster

All Known Implementing Classes:

AbstractMaster, DefaultBlockMaster, DefaultFileSystemMaster, DefaultKeyValueMaster, DefaultLineageMaster, DefaultMetaMaster, DefaultMetricsMaster, NoopMaster

public interface JournalEntryStateMachine
extends JournalEntryIterable

Interface for a state machine which operates on Journal.JournalEntrys.

Method Summary

Modifier and Type	Method and Description
String	getName()
void	processJournalEntry(Journal.JournalEntry entry) Applies a journal entry to the state machine.
void	resetState() Resets the journaled internal state of the state machine.

Methods inherited from interface alluxio.master.journal.JournalEntryIterable

getJournalEntryIterator

Method Detail

getName

String getName()

Returns:

the name of this journal entry state machine

processJournalEntry

void processJournalEntry(Journal.JournalEntry entry)
                  throws IOException

Applies a journal entry to the state machine.

Parameters:

entry - the entry to process to update the state of the state machine

Throws:

IOException

resetState

void resetState()

Resets the journaled internal state of the state machine.