org.jboss.weld.executor

Class IterativeWorkerTaskFactory<T>

java.lang.Object

org.jboss.weld.executor.IterativeWorkerTaskFactory<T>

All Implemented Interfaces:

ExecutorServices.TaskFactory<Void>

public abstract class IterativeWorkerTaskFactory<T>
extends Object
implements ExecutorServices.TaskFactory<Void>

Used for decomposition of loops in which independent tasks are processed sequentially. Based on the size of a thread pool, the factory creates an equal number of workers. Each worker iterates on a shared concurrent queue. The queue is created from the source items (iterable).

Author:

Jozef Hartinger

Constructor Summary

Constructors

Constructor and Description
IterativeWorkerTaskFactory(Iterable<? extends T> iterable)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	cleanup() Called after the computation finishes.
List<Callable<Void>>	createTasks(int threadPoolSize) Creates a list of tasks to be executed in a thread pool.
protected abstract void	doWork(T item)
Queue<T>	getQueue()
protected void	init() Called before the compulation begins.

Methods inherited from class java.lang.Object

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

Constructor Detail

IterativeWorkerTaskFactory

public IterativeWorkerTaskFactory(Iterable<? extends T> iterable)

Method Detail

createTasks

public List<Callable<Void>> createTasks(int threadPoolSize)

Description copied from interface: ExecutorServices.TaskFactory

Creates a list of tasks to be executed in a thread pool.

Specified by:

createTasks in interface ExecutorServices.TaskFactory<Void>

Parameters:

threadPoolSize - the size of the underlying thread pool

Returns:

a list of tasks to be executed in a thread pool

init

protected void init()

Called before the compulation begins.

cleanup

protected void cleanup()

Called after the computation finishes.

doWork

protected abstract void doWork(T item)

getQueue

public Queue<T> getQueue()