org.springframework.scheduling.quartz

Class SimpleThreadPoolTaskExecutor

java.lang.Object

org.quartz.simpl.SimpleThreadPool

org.springframework.scheduling.quartz.SimpleThreadPoolTaskExecutor

All Implemented Interfaces:

java.util.concurrent.Executor, ThreadPool, DisposableBean, InitializingBean, AsyncListenableTaskExecutor, AsyncTaskExecutor, TaskExecutor, SchedulingTaskExecutor

public class SimpleThreadPoolTaskExecutor
extends SimpleThreadPool
implements AsyncListenableTaskExecutor, SchedulingTaskExecutor, InitializingBean, DisposableBean

Subclass of Quartz's SimpleThreadPool that implements Spring's TaskExecutor interface and listens to Spring lifecycle callbacks.

Can be shared between a Quartz Scheduler (specified as "taskExecutor") and other TaskExecutor users, or even used completely independent of a Quartz Scheduler (as plain TaskExecutor backend).

Since:

2.0

Author:

Juergen Hoeller

See Also:

SimpleThreadPool, TaskExecutor, SchedulerFactoryBean.setTaskExecutor(java.util.concurrent.Executor)

Field Summary

Fields inherited from interface org.springframework.core.task.AsyncTaskExecutor

TIMEOUT_IMMEDIATE, TIMEOUT_INDEFINITE

Constructor Summary

Constructors

Constructor and Description
SimpleThreadPoolTaskExecutor()

Method Summary

Modifier and Type	Method and Description
void	afterPropertiesSet() Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).
void	destroy() Invoked by a BeanFactory on destruction of a singleton.
void	execute(java.lang.Runnable task) Execute the given task.
void	execute(java.lang.Runnable task, long startTimeout) Execute the given task.
boolean	prefersShortLivedTasks() This task executor prefers short-lived work units.
void	setWaitForJobsToCompleteOnShutdown(boolean waitForJobsToCompleteOnShutdown) Set whether to wait for running jobs to complete on shutdown.
<T> java.util.concurrent.Future<T>	submit(java.util.concurrent.Callable<T> task) Submit a Callable task for execution, receiving a Future representing that task.
java.util.concurrent.Future<?>	submit(java.lang.Runnable task) Submit a Runnable task for execution, receiving a Future representing that task.
<T> ListenableFuture<T>	submitListenable(java.util.concurrent.Callable<T> task) Submit a Callable task for execution, receiving a ListenableFuture representing that task.
ListenableFuture<?>	submitListenable(java.lang.Runnable task) Submit a Runnable task for execution, receiving a ListenableFuture representing that task.

Methods inherited from class org.quartz.simpl.SimpleThreadPool

blockForAvailableThreads, clearFromBusyWorkersList, createWorkerThreads, getLog, getPoolSize, getThreadCount, getThreadNamePrefix, getThreadPriority, initialize, isMakeThreadsDaemons, isThreadsInheritContextClassLoaderOfInitializingThread, isThreadsInheritGroupOfInitializingThread, makeAvailable, runInThread, setInstanceId, setInstanceName, setMakeThreadsDaemons, setThreadCount, setThreadNamePrefix, setThreadPriority, setThreadsInheritContextClassLoaderOfInitializingThread, setThreadsInheritGroupOfInitializingThread, shutdown, shutdown

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleThreadPoolTaskExecutor

public SimpleThreadPoolTaskExecutor()

Method Detail

setWaitForJobsToCompleteOnShutdown

public void setWaitForJobsToCompleteOnShutdown(boolean waitForJobsToCompleteOnShutdown)

Set whether to wait for running jobs to complete on shutdown. Default is "false".

See Also:

SimpleThreadPool.shutdown(boolean)

afterPropertiesSet

public void afterPropertiesSet()
                        throws SchedulerConfigException

Description copied from interface: InitializingBean

Invoked by a BeanFactory after it has set all bean properties supplied (and satisfied BeanFactoryAware and ApplicationContextAware).

This method allows the bean instance to perform initialization only possible when all bean properties have been set and to throw an exception in the event of misconfiguration.

Specified by:

afterPropertiesSet in interface InitializingBean

Throws:

SchedulerConfigException

execute

public void execute(java.lang.Runnable task)

Description copied from interface: TaskExecutor

Execute the given task.

The call might return immediately if the implementation uses an asynchronous execution strategy, or might block in the case of synchronous execution.

Specified by:

execute in interface java.util.concurrent.Executor

Specified by:

execute in interface TaskExecutor

Parameters:

task - the Runnable to execute (never null)

execute

public void execute(java.lang.Runnable task,
                    long startTimeout)

Description copied from interface: AsyncTaskExecutor

Execute the given task.

Specified by:

execute in interface AsyncTaskExecutor

Parameters:

task - the Runnable to execute (never null)

startTimeout - the time duration (milliseconds) within which the task is supposed to start. This is intended as a hint to the executor, allowing for preferred handling of immediate tasks. Typical values are AsyncTaskExecutor.TIMEOUT_IMMEDIATE or AsyncTaskExecutor.TIMEOUT_INDEFINITE (the default as used by TaskExecutor.execute(Runnable)).

submit

public java.util.concurrent.Future<?> submit(java.lang.Runnable task)

Description copied from interface: AsyncTaskExecutor

Submit a Runnable task for execution, receiving a Future representing that task. The Future will return a null result upon completion.

Specified by:

submit in interface AsyncTaskExecutor

Parameters:

task - the Runnable to execute (never null)

Returns:

a Future representing pending completion of the task

submit

public <T> java.util.concurrent.Future<T> submit(java.util.concurrent.Callable<T> task)

Description copied from interface: AsyncTaskExecutor

Submit a Callable task for execution, receiving a Future representing that task. The Future will return the Callable's result upon completion.

Specified by:

submit in interface AsyncTaskExecutor

Parameters:

task - the Callable to execute (never null)

Returns:

a Future representing pending completion of the task

submitListenable

public ListenableFuture<?> submitListenable(java.lang.Runnable task)

Description copied from interface: AsyncListenableTaskExecutor

Submit a Runnable task for execution, receiving a ListenableFuture representing that task. The Future will return a null result upon completion.

Specified by:

submitListenable in interface AsyncListenableTaskExecutor

Parameters:

task - the Runnable to execute (never null)

Returns:

a ListenableFuture representing pending completion of the task

submitListenable

public <T> ListenableFuture<T> submitListenable(java.util.concurrent.Callable<T> task)

Description copied from interface: AsyncListenableTaskExecutor

Submit a Callable task for execution, receiving a ListenableFuture representing that task. The Future will return the Callable's result upon completion.

Specified by:

submitListenable in interface AsyncListenableTaskExecutor

Parameters:

task - the Callable to execute (never null)

Returns:

a ListenableFuture representing pending completion of the task

prefersShortLivedTasks

public boolean prefersShortLivedTasks()

This task executor prefers short-lived work units.

Specified by:

prefersShortLivedTasks in interface SchedulingTaskExecutor

Returns:

true if this TaskExecutor prefers short-lived tasks

destroy

public void destroy()

Description copied from interface: DisposableBean

Invoked by a BeanFactory on destruction of a singleton.

Specified by:

destroy in interface DisposableBean