org.apache.flink.runtime.checkpoint

Interface CheckpointIDCounter

All Known Implementing Classes:

StandaloneCheckpointIDCounter, ZooKeeperCheckpointIDCounter

public interface CheckpointIDCounter

A checkpoint ID counter.

Method Summary

Modifier and Type	Method and Description
long	getAndIncrement() Atomically increments the current checkpoint ID.
void	setCount(long newId) Sets the current checkpoint ID.
void	start() Starts the CheckpointIDCounter service.
void	stop() Stops the CheckpointIDCounter service.

Method Detail

start

void start()
    throws Exception

Starts the CheckpointIDCounter service.

Throws:

Exception

stop

void stop()
   throws Exception

Stops the CheckpointIDCounter service.

Throws:

Exception

getAndIncrement

long getAndIncrement()
              throws Exception

Atomically increments the current checkpoint ID.

Returns:

The previous checkpoint ID

Throws:

Exception

setCount

void setCount(long newId)
       throws Exception

Sets the current checkpoint ID.

Parameters:

newId - The new ID

Throws:

Exception