org.apache.flink.runtime.checkpoint

枚举 DeactivatedCheckpointIDCounter

java.lang.Object

java.lang.Enum<DeactivatedCheckpointIDCounter>

org.apache.flink.runtime.checkpoint.DeactivatedCheckpointIDCounter

所有已实现的接口:

Serializable, Comparable<DeactivatedCheckpointIDCounter>, CheckpointIDCounter

public enum DeactivatedCheckpointIDCounter
extends Enum<DeactivatedCheckpointIDCounter>
implements CheckpointIDCounter

This class represents a CheckpointIDCounter if checkpointing is deactivated. Consequently, no component should use methods of this class other than start() and shutdown(org.apache.flink.api.common.JobStatus).

枚举常量概要

枚举常量

枚举常量和说明
INSTANCE

字段概要

从接口继承的字段 org.apache.flink.runtime.checkpoint.CheckpointIDCounter

INITIAL_CHECKPOINT_ID

方法概要

限定符和类型	方法和说明
long	get() Atomically gets the current checkpoint ID.
long	getAndIncrement() Atomically increments the current checkpoint ID.
void	setCount(long newId) Sets the current checkpoint ID.
CompletableFuture<Void>	shutdown(org.apache.flink.api.common.JobStatus jobStatus) Shuts the CheckpointIDCounter service.
void	start() Starts the CheckpointIDCounter service down.
static DeactivatedCheckpointIDCounter	valueOf(String name) 返回带有指定名称的该类型的枚举常量。
static DeactivatedCheckpointIDCounter[]	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

INSTANCE

public static final DeactivatedCheckpointIDCounter INSTANCE

方法详细资料

values

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

start

public void start()
           throws Exception

从接口复制的说明: CheckpointIDCounter

Starts the CheckpointIDCounter service down.

指定者:

start 在接口中 CheckpointIDCounter

抛出:

Exception

shutdown

public CompletableFuture<Void> shutdown(org.apache.flink.api.common.JobStatus jobStatus)

从接口复制的说明: CheckpointIDCounter

Shuts the CheckpointIDCounter service.

The job status is forwarded and used to decide whether state should actually be discarded or kept.

指定者:

shutdown 在接口中 CheckpointIDCounter

参数:

jobStatus - Job state on shut down

返回:

The CompletableFuture holding the result of the shutdown operation.

getAndIncrement

public long getAndIncrement()
                     throws Exception

从接口复制的说明: CheckpointIDCounter

Atomically increments the current checkpoint ID.

指定者:

getAndIncrement 在接口中 CheckpointIDCounter

返回:

The previous checkpoint ID

抛出:

Exception

get

public long get()

从接口复制的说明: CheckpointIDCounter

Atomically gets the current checkpoint ID.

指定者:

get 在接口中 CheckpointIDCounter

返回:

The current checkpoint ID

setCount

public void setCount(long newId)
              throws Exception

从接口复制的说明: CheckpointIDCounter

Sets the current checkpoint ID.

指定者:

setCount 在接口中 CheckpointIDCounter

参数:

newId - The new ID

抛出:

Exception