public interface AsyncHandlerMethodReturnValueHandler extends HandlerMethodReturnValueHandler
Note: implementing this contract is not required but it
should be implemented when the handler needs to be prioritized ahead of others.
For example custom (async) handlers, by default ordered after built-in
handlers, should take precedence over
@ModelAttribute handling, which should occur once the async value is
|Modifier and Type||Method and Description|
Whether the given return value represents asynchronous computation.