org.apache.flink.streaming.api.environment

枚举 CheckpointConfig.ExternalizedCheckpointCleanup

java.lang.Object

java.lang.Enum<CheckpointConfig.ExternalizedCheckpointCleanup>

org.apache.flink.streaming.api.environment.CheckpointConfig.ExternalizedCheckpointCleanup

所有已实现的接口:

Serializable, Comparable<CheckpointConfig.ExternalizedCheckpointCleanup>

封闭类:

CheckpointConfig

@PublicEvolving
public static enum CheckpointConfig.ExternalizedCheckpointCleanup
extends Enum<CheckpointConfig.ExternalizedCheckpointCleanup>

Cleanup behaviour for externalized checkpoints when the job is cancelled.

枚举常量概要

枚举常量

枚举常量和说明
DELETE_ON_CANCELLATION Delete externalized checkpoints on job cancellation.
RETAIN_ON_CANCELLATION Retain externalized checkpoints on job cancellation.

方法概要

限定符和类型	方法和说明
boolean	deleteOnCancellation() Returns whether persistent checkpoints shall be discarded on cancellation of the job.
static CheckpointConfig.ExternalizedCheckpointCleanup	valueOf(String name) 返回带有指定名称的该类型的枚举常量。
static CheckpointConfig.ExternalizedCheckpointCleanup[]	values() 按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。

从类继承的方法 java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

从类继承的方法 java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

枚举常量详细资料

DELETE_ON_CANCELLATION

public static final CheckpointConfig.ExternalizedCheckpointCleanup DELETE_ON_CANCELLATION

Delete externalized checkpoints on job cancellation.

All checkpoint state will be deleted when you cancel the owning job, both the meta data and actual program state. Therefore, you cannot resume from externalized checkpoints after the job has been cancelled.

Note that checkpoint state is always kept if the job terminates with state JobStatus.FAILED.

RETAIN_ON_CANCELLATION

public static final CheckpointConfig.ExternalizedCheckpointCleanup RETAIN_ON_CANCELLATION

Retain externalized checkpoints on job cancellation.

All checkpoint state is kept when you cancel the owning job. You have to manually delete both the checkpoint meta data and actual program state after cancelling the job.

Note that checkpoint state is always kept if the job terminates with state JobStatus.FAILED.

方法详细资料

values

public static CheckpointConfig.ExternalizedCheckpointCleanup[] values()

按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。该方法可用于迭代 常量, 如下所示:

for (CheckpointConfig.ExternalizedCheckpointCleanup c : CheckpointConfig.ExternalizedCheckpointCleanup.values())
    System.out.println(c);

返回:

按照声明该枚举类型的常量的顺序返回的包含这些常量的数组

valueOf

public static CheckpointConfig.ExternalizedCheckpointCleanup valueOf(String name)

返回带有指定名称的该类型的枚举常量。 字符串必须与用于声明该类型的枚举常量的 标识符完全匹配。(不允许有多余 的空格字符。)

参数:

name - 要返回的枚举常量的名称。

返回:

返回带有指定名称的枚举常量

抛出:

IllegalArgumentException - 如果该枚举类型没有带有指定名称的常量

NullPointerException - 如果参数为空值

deleteOnCancellation

public boolean deleteOnCancellation()

Returns whether persistent checkpoints shall be discarded on cancellation of the job.

返回:

true if persistent checkpoints shall be discarded on cancellation of the job.