Package org.apache.hadoop.util.functional

Class CloseableTaskPoolSubmitter

java.lang.Object

org.apache.hadoop.util.functional.CloseableTaskPoolSubmitter

All Implemented Interfaces:

Closeable, AutoCloseable, TaskPool.Submitter

@Public
@Unstable
public class CloseableTaskPoolSubmitter
extends Object
implements TaskPool.Submitter, Closeable

A task submitter which is closeable, and whose close() call shuts down the pool. This can help manage thread pool lifecycles.

Constructor Summary

Constructors

Constructor	Description
CloseableTaskPoolSubmitter(ExecutorService pool)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	close()	Shut down the pool.
ExecutorService	getPool()	Get the pool.
Future<?>	submit(Runnable task)	Submit work.

Methods inherited from class java.lang.Object

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

Constructor Details

CloseableTaskPoolSubmitter

public CloseableTaskPoolSubmitter(ExecutorService pool)

Constructor.

Parameters:

pool - non-null executor.

Method Details

getPool

public ExecutorService getPool()

Get the pool.

Returns:

the pool.

close

public void close()

Shut down the pool.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

submit

public Future<?> submit(Runnable task)

Description copied from interface: TaskPool.Submitter

Submit work.

Specified by:

submit in interface TaskPool.Submitter

Parameters:

task - task to execute

Returns:

the future of the submitted task.