org.jboss.weld.executor

Class AbstractExecutorServices

java.lang.Object

org.jboss.weld.executor.AbstractExecutorServices

All Implemented Interfaces:

Service, ExecutorServices

Direct Known Subclasses:

FixedThreadPoolExecutorServices, SingleThreadExecutorServices, TimingOutFixedThreadPoolExecutorServices

public abstract class AbstractExecutorServices
extends Object
implements ExecutorServices

Common functionality for ExecutorServices.

Author:

Jozef Hartinger

Nested Class Summary

Nested classes/interfaces inherited from interface org.jboss.weld.manager.api.ExecutorServices

ExecutorServices.TaskFactory<T>

Constructor Summary

Constructors

Constructor and Description
AbstractExecutorServices()

Method Summary

Modifier and Type	Method and Description
void	cleanup() Called by Weld when it is shutting down, allowing the service to perform any cleanup needed.
protected abstract int	getThreadPoolSize() Indicates the maximum number of threads in this thread pool.
protected <T> List<Future<T>>	checkForExceptions(List<Future<T>> futures)
<T> List<Future<T>>	invokeAllAndCheckForExceptions(Collection<? extends Callable<T>> tasks) Executes the given tasks and blocks until they all finish.
<T> List<Future<T>>	invokeAllAndCheckForExceptions(ExecutorServices.TaskFactory<T> factory) Executes all the tasks returned from calling ExecutorServices.TaskFactory.createTasks(int) method.
protected void	shutdown()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jboss.weld.manager.api.ExecutorServices

getTaskExecutor

Constructor Detail

AbstractExecutorServices

public AbstractExecutorServices()

Method Detail

invokeAllAndCheckForExceptions

public <T> List<Future<T>> invokeAllAndCheckForExceptions(Collection<? extends Callable<T>> tasks)

Description copied from interface: ExecutorServices

Executes the given tasks and blocks until they all finish. If a task throws an exception, the exception is rethrown by this method. If multiple tasks throw exceptions, there is no guarantee about which of the exceptions is rethrown by this method.

Specified by:

invokeAllAndCheckForExceptions in interface ExecutorServices

Type Parameters:

T - the result type of tasks

Parameters:

tasks - the collection of tasks

Returns:

A list of Futures representing the tasks, in the same sequential order as produced by the iterator for the given task list, each of which has completed.

invokeAllAndCheckForExceptions

public <T> List<Future<T>> invokeAllAndCheckForExceptions(ExecutorServices.TaskFactory<T> factory)

Description copied from interface: ExecutorServices

Executes all the tasks returned from calling ExecutorServices.TaskFactory.createTasks(int) method. The method is called exactly once.If a task throws an exception, the exception is rethrown by this method. If multiple tasks throw exceptions, there is no guarantee about which of the exceptions is rethrown by this method.

Specified by:

invokeAllAndCheckForExceptions in interface ExecutorServices

Type Parameters:

T - the result type of tasks

Parameters:

factory - factory capable of creating tasks

Returns:

A list of Futures representing the tasks, in the same sequential order as produced by the iterator for the given task list, each of which has completed.

checkForExceptions

protected <T> List<Future<T>> checkForExceptions(List<Future<T>> futures)

cleanup

public void cleanup()

Description copied from interface: Service

Called by Weld when it is shutting down, allowing the service to perform any cleanup needed.

Specified by:

cleanup in interface Service

shutdown

protected void shutdown()

getThreadPoolSize

protected abstract int getThreadPoolSize()

Indicates the maximum number of threads in this thread pool. If the value is unknown or if the max number of threads is not bounded this method should return -1