org.apache.flink.configuration

枚举 ExternalizedCheckpointRetention

java.lang.Object

java.lang.Enum<ExternalizedCheckpointRetention>

org.apache.flink.configuration.ExternalizedCheckpointRetention

所有已实现的接口:

Serializable, Comparable<ExternalizedCheckpointRetention>, DescribedEnum

@PublicEvolving
public enum ExternalizedCheckpointRetention
extends Enum<ExternalizedCheckpointRetention>
implements DescribedEnum

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.
NO_EXTERNALIZED_CHECKPOINTS Externalized checkpoints are disabled completely.
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.
InlineElement	getDescription() Returns the description for the enum constant.
static ExternalizedCheckpointRetention	valueOf(String name) 返回带有指定名称的该类型的枚举常量。
static ExternalizedCheckpointRetention[]	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 ExternalizedCheckpointRetention 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 ExternalizedCheckpointRetention 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.

NO_EXTERNALIZED_CHECKPOINTS

public static final ExternalizedCheckpointRetention NO_EXTERNALIZED_CHECKPOINTS

Externalized checkpoints are disabled completely.

方法详细资料

values

public static ExternalizedCheckpointRetention[] 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 (ExternalizedCheckpointRetention c : ExternalizedCheckpointRetention.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 ExternalizedCheckpointRetention 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.

getDescription

@Internal
public InlineElement getDescription()

从接口复制的说明: DescribedEnum

Returns the description for the enum constant.

If you want to include links or code blocks, use TextElement.wrap(InlineElement...) to wrap multiple inline elements into a single one.

指定者:

getDescription 在接口中 DescribedEnum