Package org.jivesoftware.util

Class ScheduledExecutorCompletionService<V>

java.lang.Object

org.jivesoftware.util.ScheduledExecutorCompletionService<V>

All Implemented Interfaces:

CompletionService<V>

public class ScheduledExecutorCompletionService<V>
extends Object
implements CompletionService<V>

A CompletionService that allows solvers to be scheduled. This implementation borrows a lot from ExecutorCompletionService, which sadly is not designed to be extensible.

Author:

Guus der Kinderen, guus@goodbytes.nl

Constructor Summary

Constructors

Constructor	Description
ScheduledExecutorCompletionService(ScheduledThreadPoolExecutor executor)	Creates an ExecutorCompletionService using the supplied executor for base task execution and a LinkedBlockingQueue as a completion queue.
ScheduledExecutorCompletionService(ScheduledThreadPoolExecutor executor, BlockingQueue<Future<V>> completionQueue)	Creates an ExecutorCompletionService using the supplied executor for base task execution and the supplied queue as its completion queue.

Method Summary

Modifier and Type	Method	Description
Future<V>	poll()
Future<V>	poll(long timeout, TimeUnit unit)
Future<V>	schedule(Callable<V> task, long delay, TimeUnit unit)
Future<V>	schedule(Callable<V> task, Duration delay)
Future<V>	submit(Runnable task, V result)
Future<V>	submit(Callable<V> task)
Future<V>	take()

Methods inherited from class java.lang.Object

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

Constructor Details

ScheduledExecutorCompletionService

public ScheduledExecutorCompletionService(ScheduledThreadPoolExecutor executor)

Creates an ExecutorCompletionService using the supplied executor for base task execution and a LinkedBlockingQueue as a completion queue.

Parameters:

executor - the executor to use

Throws:

NullPointerException - if executor is null

ScheduledExecutorCompletionService

public ScheduledExecutorCompletionService(ScheduledThreadPoolExecutor executor,
 BlockingQueue<Future<V>> completionQueue)

Creates an ExecutorCompletionService using the supplied executor for base task execution and the supplied queue as its completion queue.

Parameters:

executor - the executor to use

completionQueue - the queue to use as the completion queue normally one dedicated for use by this service. This queue is treated as unbounded -- failed attempted Queue.add operations for completed tasks cause them not to be retrievable.

Throws:

NullPointerException - if executor or completionQueue are null

Method Details

submit

@Nonnull
public Future<V> submit(@Nonnull
 Callable<V> task)

Specified by:

submit in interface CompletionService<V>

Throws:

RejectedExecutionException

NullPointerException

submit

@Nonnull
public Future<V> submit(@Nonnull
 Runnable task,
 V result)

Specified by:

submit in interface CompletionService<V>

Throws:

RejectedExecutionException

NullPointerException

schedule

public Future<V> schedule(Callable<V> task,
 Duration delay)

schedule

public Future<V> schedule(Callable<V> task,
 long delay,
 TimeUnit unit)

take

public Future<V> take()
               throws InterruptedException

Specified by:

take in interface CompletionService<V>

Throws:

InterruptedException

poll

public Future<V> poll()

Specified by:

poll in interface CompletionService<V>

poll

public Future<V> poll(long timeout,
 @Nonnull
 TimeUnit unit)
               throws InterruptedException

Specified by:

poll in interface CompletionService<V>

Throws:

InterruptedException