org.apache.flink.runtime.checkpoint

接口 CheckpointIDCounter

所有已知实现类:

DeactivatedCheckpointIDCounter, StandaloneCheckpointIDCounter, ZooKeeperCheckpointIDCounter

public interface CheckpointIDCounter

A checkpoint ID counter.

字段概要

字段

限定符和类型	字段和说明
static int	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.
void	shutdown(org.apache.flink.api.common.JobStatus jobStatus) Shuts the CheckpointIDCounter service.
void	start() Starts the CheckpointIDCounter service down.

字段详细资料

INITIAL_CHECKPOINT_ID

static final int INITIAL_CHECKPOINT_ID

另请参阅:

常量字段值

方法详细资料

start

void start()
    throws Exception

Starts the CheckpointIDCounter service down.

抛出:

Exception

shutdown

void shutdown(org.apache.flink.api.common.JobStatus jobStatus)
       throws Exception

Shuts the CheckpointIDCounter service.

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

参数:

jobStatus - Job state on shut down

抛出:

Exception

getAndIncrement

long getAndIncrement()
              throws Exception

Atomically increments the current checkpoint ID.

返回:

The previous checkpoint ID

抛出:

Exception

get

long get()

Atomically gets the current checkpoint ID.

返回:

The current checkpoint ID

setCount

void setCount(long newId)
       throws Exception

Sets the current checkpoint ID.

参数:

newId - The new ID

抛出:

Exception