org.apache.flink.runtime.state.filesystem

类 FsCheckpointStateToolset

java.lang.Object

org.apache.flink.runtime.state.filesystem.FsCheckpointStateToolset

所有已实现的接口:

CheckpointStateToolset

public class FsCheckpointStateToolset
extends Object
implements CheckpointStateToolset

An implementation of CheckpointStateToolset that does file based duplicating with as DuplicatingFileSystem.

构造器概要

构造器

构造器和说明
FsCheckpointStateToolset(org.apache.flink.core.fs.Path basePath, org.apache.flink.core.fs.DuplicatingFileSystem fs)

方法概要

限定符和类型	方法和说明
boolean	canFastDuplicate(StreamStateHandle stateHandle) Tells if we can duplicate the given StreamStateHandle.
List<StreamStateHandle>	duplicate(List<StreamStateHandle> stateHandles) Duplicates StreamStateHandles into the path embedded inside of the class.

从类继承的方法 java.lang.Object

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

构造器详细资料

FsCheckpointStateToolset

public FsCheckpointStateToolset(org.apache.flink.core.fs.Path basePath,
                                org.apache.flink.core.fs.DuplicatingFileSystem fs)

方法详细资料

canFastDuplicate

public boolean canFastDuplicate(StreamStateHandle stateHandle)
                         throws IOException

从接口复制的说明: CheckpointStateToolset

Tells if we can duplicate the given StreamStateHandle.

This should be a rather cheap operation, preferably not involving any remote accesses.

指定者:

canFastDuplicate 在接口中 CheckpointStateToolset

参数:

stateHandle - The handle to duplicate

返回:

true, if we can perform the duplication

抛出:

IOException

duplicate

public List<StreamStateHandle> duplicate(List<StreamStateHandle> stateHandles)
                                  throws IOException

从接口复制的说明: CheckpointStateToolset

Duplicates StreamStateHandles into the path embedded inside of the class.

You should first check if you can duplicate with CheckpointStateToolset.canFastDuplicate(StreamStateHandle).

指定者:

duplicate 在接口中 CheckpointStateToolset

参数:

stateHandles - The handles to duplicate

返回:

The duplicated handles

抛出:

IOException