程序包 cn.taketoday.web.context.async

类 WebAsyncTask<V>

java.lang.Object

cn.taketoday.web.context.async.WebAsyncTask<V>

类型参数:

V - the value type

所有已实现的接口:

cn.taketoday.beans.factory.Aware, cn.taketoday.beans.factory.BeanFactoryAware

public class WebAsyncTask<V>
extends Object
implements cn.taketoday.beans.factory.BeanFactoryAware

Holder for a Callable, a timeout value, and a task executor.

从以下版本开始:

4.0

作者:

Rossen Stoyanchev, Juergen Hoeller

字段概要

字段

修饰符和类型	字段	说明
private cn.taketoday.beans.factory.BeanFactory	beanFactory
private final Callable<V>	callable
private Runnable	completionCallback
private Callable<V>	errorCallback
private cn.taketoday.core.task.AsyncTaskExecutor	executor
private String	executorName
private Long	timeout
private Callable<V>	timeoutCallback

构造器概要

构造器

构造器	说明
WebAsyncTask(Long timeout, cn.taketoday.core.task.AsyncTaskExecutor executor, Callable<V> callable)	Create a WebAsyncTask with a timeout value, an executor instance, and a Callable.
WebAsyncTask(Long timeout, String executorName, Callable<V> callable)	Create a WebAsyncTask with a timeout value, an executor name, and a Callable.
WebAsyncTask(Long timeout, Callable<V> callable)	Create a WebAsyncTask with a timeout value and a Callable.
WebAsyncTask(Callable<V> callable)	Create a WebAsyncTask wrapping the given Callable.

方法概要

修饰符和类型	方法	说明
Callable<?>	getCallable()	Return the Callable to use for concurrent handling (never null).
cn.taketoday.core.task.AsyncTaskExecutor	getExecutor()	Return the AsyncTaskExecutor to use for concurrent handling, or null if none specified.
(专用程序包) CallableProcessingInterceptor	getInterceptor()
Long	getTimeout()	Return the timeout value in milliseconds, or null if no timeout is set.
void	onCompletion(Runnable callback)	Register code to invoke when the async request completes.
void	onError(Callable<V> callback)	Register code to invoke for an error during async request processing.
void	onTimeout(Callable<V> callback)	Register code to invoke when the async request times out.
void	setBeanFactory(cn.taketoday.beans.factory.BeanFactory beanFactory)	A BeanFactory to use for resolving an executor name.

从类继承的方法 java.lang.Object

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

字段详细资料

callable

private final Callable<V> callable

timeout

private Long timeout

executor

private cn.taketoday.core.task.AsyncTaskExecutor executor

executorName

private String executorName

beanFactory

private cn.taketoday.beans.factory.BeanFactory beanFactory

timeoutCallback

private Callable<V> timeoutCallback

errorCallback

private Callable<V> errorCallback

completionCallback

private Runnable completionCallback

构造器详细资料

WebAsyncTask

public WebAsyncTask(Callable<V> callable)

Create a WebAsyncTask wrapping the given Callable.

参数:

callable - the callable for concurrent handling

WebAsyncTask

public WebAsyncTask(@Nullable
 Long timeout,
 Callable<V> callable)

Create a WebAsyncTask with a timeout value and a Callable.

参数:

timeout - a timeout value in milliseconds

callable - the callable for concurrent handling

WebAsyncTask

public WebAsyncTask(@Nullable
 Long timeout,
 String executorName,
 Callable<V> callable)

Create a WebAsyncTask with a timeout value, an executor name, and a Callable.

参数:

timeout - the timeout value in milliseconds; ignored if null

executorName - the name of an executor bean to use

callable - the callable for concurrent handling

WebAsyncTask

public WebAsyncTask(@Nullable
 Long timeout,
 cn.taketoday.core.task.AsyncTaskExecutor executor,
 Callable<V> callable)

Create a WebAsyncTask with a timeout value, an executor instance, and a Callable.

参数:

timeout - the timeout value in milliseconds; ignored if null

executor - the executor to use

callable - the callable for concurrent handling

方法详细资料

getCallable

public Callable<?> getCallable()

Return the Callable to use for concurrent handling (never null).

getTimeout

@Nullable
public Long getTimeout()

Return the timeout value in milliseconds, or null if no timeout is set.

setBeanFactory

public void setBeanFactory(cn.taketoday.beans.factory.BeanFactory beanFactory)

A BeanFactory to use for resolving an executor name.

This factory reference will automatically be set when WebAsyncTask is used within a Web MVC controller.

指定者:

setBeanFactory 在接口中 cn.taketoday.beans.factory.BeanFactoryAware

getExecutor

@Nullable
public cn.taketoday.core.task.AsyncTaskExecutor getExecutor()

Return the AsyncTaskExecutor to use for concurrent handling, or null if none specified.

onTimeout

public void onTimeout(Callable<V> callback)

Register code to invoke when the async request times out.

This method is called from a container thread when an async request times out before the Callable has completed. The callback is executed in the same thread and therefore should return without blocking. It may return an alternative value to use, including an Exception or return RESULT_NONE.

onError

public void onError(Callable<V> callback)

Register code to invoke for an error during async request processing.

This method is called from a container thread when an error occurred while processing an async request before the Callable has completed. The callback is executed in the same thread and therefore should return without blocking. It may return an alternative value to use, including an Exception or return RESULT_NONE.

onCompletion

public void onCompletion(Runnable callback)

Register code to invoke when the async request completes.

This method is called from a container thread when an async request completed for any reason, including timeout and network error.

getInterceptor

CallableProcessingInterceptor getInterceptor()