org.apache.flink.runtime.jobmaster.event

Class JobEventManager

java.lang.Object

org.apache.flink.runtime.jobmaster.event.JobEventManager

public class JobEventManager
extends Object

The manager for recording and replaying JobEvent.

Constructor Summary

Constructors

Constructor and Description
JobEventManager(JobEventStore store)

Method Summary

Modifier and Type	Method and Description
boolean	hasJobEvents() Returns whether the store is empty.
boolean	replay(JobEventReplayHandler replayHandler) Replay all job events that have been record.
void	start() Start the job event manager.
void	stop(boolean clear) Stop the job event manager.
void	writeEvent(JobEvent event, boolean cutBlock) Write a job event asynchronously.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JobEventManager

public JobEventManager(JobEventStore store)

Method Detail

start

public void start()
           throws Exception

Start the job event manager.

Throws:

Exception

stop

public void stop(boolean clear)

Stop the job event manager.

NOTE: This method maybe invoked multiply times.

writeEvent

public void writeEvent(JobEvent event,
                       boolean cutBlock)

Write a job event asynchronously.

Parameters:

event - The job event that will be recorded.

cutBlock - whether start a new event block after write this event.

replay

public boolean replay(JobEventReplayHandler replayHandler)

Replay all job events that have been record.

Parameters:

replayHandler - handler which will process the job event.

Returns:

true if replay successfully, false otherwise.

hasJobEvents

public boolean hasJobEvents()
                     throws Exception

Returns whether the store is empty.

Returns:

false if the store contains any job events, true otherwise.

Throws:

Exception