Package javax.servlet

Interface WriteListener

  • All Superinterfaces:

    public interface WriteListener
    extends EventListener
    Receives notification of write events when using non-blocking IO.
    Servlet 3.1
    • Method Detail

      • 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.
        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.
        throwable - The throwable that represents the error that occurred