org.apache.flink.runtime.state

类 NotDuplicatingCheckpointStateToolset

java.lang.Object

org.apache.flink.runtime.state.NotDuplicatingCheckpointStateToolset

所有已实现的接口:

CheckpointStateToolset

public final class NotDuplicatingCheckpointStateToolset
extends Object
implements CheckpointStateToolset

An empty implementation of CheckpointStateToolset.

构造器概要

构造器

构造器和说明
NotDuplicatingCheckpointStateToolset()

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> stateHandle) 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

NotDuplicatingCheckpointStateToolset

public NotDuplicatingCheckpointStateToolset()

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> stateHandle)
                                  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:

stateHandle - The handles to duplicate

返回:

The duplicated handles

抛出:

IOException