Package jakarta.servlet

Interface WriteListener

All Superinterfaces:

EventListener

public interface WriteListener
extends EventListener

Receives notification of write events when using non-blocking IO.

Since:

Servlet 3.1

Method Summary

Modifier and Type	Method	Description
void	onError(Throwable throwable)	Invoked if an error occurs while writing the response.
void	onWritePossible()	Invoked when it it possible to write data without blocking.

Method Details

onWritePossible

void onWritePossible()
              throws IOException

Invoked when it it possible to write data without blocking. The container will invoke this method the first time for a request as soon as data can be written. Subsequent invocations will only occur if a call to ServletOutputStream.isReady() has returned false and it has since become possible to write data.

Throws:

IOException - if an I/O error occurs while processing this event

onError

void onError(Throwable throwable)

Invoked if an error occurs while writing the response.

Parameters:

throwable - The throwable that represents the error that occurred