org.apache.flink.runtime.execution

Interface ExecutionObserver

All Known Implementing Classes:

Task

public interface ExecutionObserver

Method Summary

Methods

Modifier and Type	Method and Description
void	executionStateChanged(ExecutionState newExecutionState, String optionalMessage) Called when the execution state of the associated task has changed.
boolean	isCanceled() Returns whether the task has been canceled.
void	userThreadFinished(Thread userThread) Called when a thread spawn by a user task has finished.
void	userThreadStarted(Thread userThread) Called when the user task has started a new thread.

Method Detail

executionStateChanged

void executionStateChanged(ExecutionState newExecutionState,
                         String optionalMessage)

Called when the execution state of the associated task has changed.

Parameters:

newExecutionState - the execution state the task has just switched to

optionalMessage - an optional message providing further information on the state change

userThreadStarted

void userThreadStarted(Thread userThread)

Called when the user task has started a new thread.

Parameters:

userThread - the user thread which has been started

userThreadFinished

void userThreadFinished(Thread userThread)

Called when a thread spawn by a user task has finished.

Parameters:

userThread - the user thread which has finished

isCanceled

boolean isCanceled()

Returns whether the task has been canceled.

Returns:

true if the task has been canceled, false otherwise