类 SimpleApplicationEventMulticaster

构造器详细资料

• SimpleApplicationEventMulticaster

  public SimpleApplicationEventMulticaster()

  Create a new SimpleApplicationEventMulticaster.

• SimpleApplicationEventMulticaster

  public SimpleApplicationEventMulticaster​(BeanFactory beanFactory)

  Create a new SimpleApplicationEventMulticaster for the given BeanFactory.

方法详细资料

• setTaskExecutor

  public void setTaskExecutor​(Executor taskExecutor)

  Set a custom executor (typically a TaskExecutor) to invoke each listener with.

  Default is equivalent to SyncTaskExecutor, executing all listeners synchronously in the calling thread.

  Consider specifying an asynchronous task executor here to not block the caller until all listeners have been executed. However, note that asynchronous execution will not participate in the caller's thread context (class loader, transaction association) unless the TaskExecutor explicitly supports this.

  另请参阅:

  SyncTaskExecutor, SimpleAsyncTaskExecutor

• getTaskExecutor

  protected Executor getTaskExecutor()

  Return the current task executor for this multicaster.

• setErrorHandler

  public void setErrorHandler​(ErrorHandler errorHandler)

  Set the ErrorHandler to invoke in case an exception is thrown from a listener.

  Default is none, with a listener exception stopping the current multicast and getting propagated to the publisher of the current event. If a task executor is specified, each individual listener exception will get propagated to the executor but won't necessarily stop execution of other listeners.

  Consider setting an ErrorHandler implementation that catches and logs exceptions (a la TaskUtils.LOG_AND_SUPPRESS_ERROR_HANDLER) or an implementation that logs exceptions while nevertheless propagating them (e.g. TaskUtils.LOG_AND_PROPAGATE_ERROR_HANDLER).

  从以下版本开始:

  4.1

• getErrorHandler

  protected ErrorHandler getErrorHandler()

  Return the current error handler for this multicaster.

  从以下版本开始:

  4.1

• multicastEvent

  public void multicastEvent​(ApplicationEvent event)

  从接口复制的说明: ApplicationEventMulticaster
  Multicast the given application event to appropriate listeners.

  Consider using ApplicationEventMulticaster.multicastEvent(ApplicationEvent, ResolvableType) if possible as it provides a better support for generics-based events.

  参数:

  event - the event to multicast

• multicastEvent

  public void multicastEvent​(ApplicationEvent event,
                             ResolvableType eventType)

  从接口复制的说明: ApplicationEventMulticaster
  Multicast the given application event to appropriate listeners.

  If the eventType is null, a default type is built based on the event instance.

  参数:

  event - the event to multicast

  eventType - the type of event (can be null)

• invokeListener

  protected void invokeListener​(ApplicationListener<?> listener,
                                ApplicationEvent event)

  Invoke the given listener with the given event.

  参数:

  listener - the ApplicationListener to invoke

  event - the current event to propagate

  从以下版本开始:

  4.1