org.apache.ratis.statemachine.impl

类 SimpleStateMachineStorage

java.lang.Object

org.apache.ratis.statemachine.impl.SimpleStateMachineStorage

所有已实现的接口:

StateMachineStorage

public class SimpleStateMachineStorage
extends Object
implements StateMachineStorage

A StateMachineStorage that stores the snapshot in a single file.

字段概要

字段

限定符和类型	字段和说明
static Pattern	SNAPSHOT_MD5_REGEX
static Pattern	SNAPSHOT_REGEX snapshot.term_index

构造器概要

构造器

构造器和说明
SimpleStateMachineStorage()

方法概要

限定符和类型	方法和说明
void	cleanupOldSnapshots(SnapshotRetentionPolicy snapshotRetentionPolicy)
void	format()
protected File	getCorruptSnapshotFile(long term, long endIndex)
protected static String	getCorruptSnapshotFileName(long term, long endIndex)
SingleFileSnapshotInfo	getLatestSnapshot()
File	getSnapshotFile(long term, long endIndex)
static String	getSnapshotFileName(long term, long endIndex)
static TermIndex	getTermIndexFromSnapshotFile(File file)
protected File	getTmpSnapshotFile(long term, long endIndex)
protected static String	getTmpSnapshotFileName(long term, long endIndex)
void	init(RaftStorage storage)
SingleFileSnapshotInfo	loadLatestSnapshot()
SingleFileSnapshotInfo	updateLatestSnapshot(SingleFileSnapshotInfo info)

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.ratis.statemachine.StateMachineStorage

getSnapshotDir, getTmpDir

字段详细资料

SNAPSHOT_REGEX

public static final Pattern SNAPSHOT_REGEX

snapshot.term_index

SNAPSHOT_MD5_REGEX

public static final Pattern SNAPSHOT_MD5_REGEX

构造器详细资料

SimpleStateMachineStorage

public SimpleStateMachineStorage()

方法详细资料

init

public void init(RaftStorage storage)
          throws IOException

指定者:

init 在接口中 StateMachineStorage

抛出:

IOException

format

public void format()
            throws IOException

指定者:

format 在接口中 StateMachineStorage

抛出:

IOException

cleanupOldSnapshots

public void cleanupOldSnapshots(SnapshotRetentionPolicy snapshotRetentionPolicy)
                         throws IOException

指定者:

cleanupOldSnapshots 在接口中 StateMachineStorage

抛出:

IOException

getTermIndexFromSnapshotFile

public static TermIndex getTermIndexFromSnapshotFile(File file)

getTmpSnapshotFileName

protected static String getTmpSnapshotFileName(long term,
                                               long endIndex)

getCorruptSnapshotFileName

protected static String getCorruptSnapshotFileName(long term,
                                                   long endIndex)

getSnapshotFile

public File getSnapshotFile(long term,
                            long endIndex)

getTmpSnapshotFile

protected File getTmpSnapshotFile(long term,
                                  long endIndex)

getCorruptSnapshotFile

protected File getCorruptSnapshotFile(long term,
                                      long endIndex)

updateLatestSnapshot

public SingleFileSnapshotInfo updateLatestSnapshot(SingleFileSnapshotInfo info)

getSnapshotFileName

public static String getSnapshotFileName(long term,
                                         long endIndex)

getLatestSnapshot

public SingleFileSnapshotInfo getLatestSnapshot()

指定者:

getLatestSnapshot 在接口中 StateMachineStorage

loadLatestSnapshot

public SingleFileSnapshotInfo loadLatestSnapshot()