org.springframework.scheduling.concurrent

## 类 ForkJoinPoolFactoryBean

- java.lang.Object
- - org.springframework.scheduling.concurrent.ForkJoinPoolFactoryBean

- 所有已实现的接口:
    org.springframework.beans.factory.DisposableBean, org.springframework.beans.factory.FactoryBean<ForkJoinPool>, org.springframework.beans.factory.InitializingBean

      public class ForkJoinPoolFactoryBean
      extends Object
      implements org.springframework.beans.factory.FactoryBean<ForkJoinPool>, org.springframework.beans.factory.InitializingBean, org.springframework.beans.factory.DisposableBean

  A Spring `FactoryBean` that builds and exposes a preconfigured `ForkJoinPool`.
  从以下版本开始:
    3.1
  作者:
    Juergen Hoeller

- - ### 构造器概要

    构造器
    构造器和说明
    `ForkJoinPoolFactoryBean()`

  - ### 方法概要

    所有方法 实例方法 具体方法
    限定符和类型 | 方法和说明
    --- | ---
    `void` | `afterPropertiesSet()`
    `void` | `destroy()`
    `ForkJoinPool` | `getObject()`
    `Class<?>` | `getObjectType()`
    `boolean` | `isSingleton()`
    `void` | `setAsyncMode(boolean asyncMode)` Specify whether to establish a local first-in-first-out scheduling mode for forked tasks that are never joined.
    `void` | `setAwaitTerminationSeconds(int awaitTerminationSeconds)` Set the maximum number of seconds that this ForkJoinPool is supposed to block on shutdown in order to wait for remaining tasks to complete their execution before the rest of the container continues to shut down.
    `void` | `setCommonPool(boolean commonPool)` Set whether to expose JDK 8's 'common' `ForkJoinPool`.
    `void` | `setParallelism(int parallelism)` Specify the parallelism level.
    `void` | `setThreadFactory(ForkJoinPool.ForkJoinWorkerThreadFactory threadFactory)` Set the factory for creating new ForkJoinWorkerThreads.
    `void` | `setUncaughtExceptionHandler(Thread.UncaughtExceptionHandler uncaughtExceptionHandler)` Set the handler for internal worker threads that terminate due to unrecoverable errors encountered while executing tasks.

    - ### 从类继承的方法 java.lang.Object

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

- - ### 构造器详细资料

    - #### ForkJoinPoolFactoryBean

          public ForkJoinPoolFactoryBean()

  - ### 方法详细资料

    - #### setCommonPool

          public void setCommonPool(boolean commonPool)

      Set whether to expose JDK 8's 'common' `ForkJoinPool`.

      Default is "false", creating a local `ForkJoinPool` instance based on the `"parallelism"`, `"threadFactory"`, `"uncaughtExceptionHandler"` and `"asyncMode"` properties on this FactoryBean.

      NOTE: Setting this flag to "true" effectively ignores all other properties on this FactoryBean, reusing the shared common JDK `ForkJoinPool` instead. This is a fine choice on JDK 8 but does remove the application's ability to customize ForkJoinPool behavior, in particular the use of custom threads.

      从以下版本开始:
        3.2
      另请参阅:
        `ForkJoinPool.commonPool()`

    - #### setParallelism

          public void setParallelism(int parallelism)

      Specify the parallelism level. Default is `Runtime.availableProcessors()`.

    - #### setThreadFactory

          public void setThreadFactory(ForkJoinPool.ForkJoinWorkerThreadFactory threadFactory)

      Set the factory for creating new ForkJoinWorkerThreads. Default is `ForkJoinPool.defaultForkJoinWorkerThreadFactory`.

    - #### setUncaughtExceptionHandler

          public void setUncaughtExceptionHandler(Thread.UncaughtExceptionHandler uncaughtExceptionHandler)

      Set the handler for internal worker threads that terminate due to unrecoverable errors encountered while executing tasks. Default is none.

    - #### setAsyncMode

          public void setAsyncMode(boolean asyncMode)

      Specify whether to establish a local first-in-first-out scheduling mode for forked tasks that are never joined. This mode (asyncMode = `true`) may be more appropriate than the default locally stack-based mode in applications in which worker threads only process event-style asynchronous tasks. Default is `false`.

    - #### setAwaitTerminationSeconds

          public void setAwaitTerminationSeconds(int awaitTerminationSeconds)

      Set the maximum number of seconds that this ForkJoinPool is supposed to block on shutdown in order to wait for remaining tasks to complete their execution before the rest of the container continues to shut down. This is particularly useful if your remaining tasks are likely to need access to other resources that are also managed by the container.

      By default, this ForkJoinPool won't wait for the termination of tasks at all. It will continue to fully execute all ongoing tasks as well as all remaining tasks in the queue, in parallel to the rest of the container shutting down. In contrast, if you specify an await-termination period using this property, this executor will wait for the given time (max) for the termination of tasks.

      Note that this feature works for the `"commonPool"` mode as well. The underlying ForkJoinPool won't actually terminate in that case but will wait for all tasks to terminate.

      另请参阅:
        `ForkJoinPool.shutdown()`, `ForkJoinPool.awaitTermination(long, java.util.concurrent.TimeUnit)`

    - #### afterPropertiesSet

          public void afterPropertiesSet()

      指定者:
        `afterPropertiesSet` 在接口中 `org.springframework.beans.factory.InitializingBean`

    - #### getObject

          @Nullable
          public ForkJoinPool getObject()

      指定者:
        `getObject` 在接口中 `org.springframework.beans.factory.FactoryBean<ForkJoinPool>`

    - #### getObjectType

          public Class<?> getObjectType()

      指定者:
        `getObjectType` 在接口中 `org.springframework.beans.factory.FactoryBean<ForkJoinPool>`

    - #### isSingleton

          public boolean isSingleton()

      指定者:
        `isSingleton` 在接口中 `org.springframework.beans.factory.FactoryBean<ForkJoinPool>`

    - #### destroy

          public void destroy()

      指定者:
        `destroy` 在接口中 `org.springframework.beans.factory.DisposableBean`