Package javax.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
    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