public interface AsyncWebRequestInterceptor extends WebRequestInterceptor
WebRequestInterceptor
with a callback method invoked during
asynchronous request handling.
When a handler starts asynchronous request handling, the DispatcherServlet
exits without invoking postHandle
and afterCompletion
, as it
normally does, since the results of request handling (e.g. ModelAndView) are
not available in the current thread and handling is not yet complete.
In such scenarios, the afterConcurrentHandlingStarted(WebRequest)
method is invoked instead allowing implementations to perform tasks such as
cleaning up thread bound attributes.
When asynchronous handling completes, the request is dispatched to the
container for further processing. At this stage the DispatcherServlet invokes
preHandle
, postHandle
and afterCompletion
as usual.
WebAsyncManager
Modifier and Type | Method and Description |
---|---|
void |
afterConcurrentHandlingStarted(WebRequest request)
Called instead of
postHandle and afterCompletion , when the
handler started handling the request concurrently. |
afterCompletion, postHandle, preHandle
void afterConcurrentHandlingStarted(WebRequest request)
postHandle
and afterCompletion
, when the
handler started handling the request concurrently.request
- the current request