Package javax.servlet

Interface WriteListener

All Superinterfaces:
EventListener
public interface WriteListener extends EventListener
Callback notification mechanism that signals to the developer it's possible to write content without blocking.
Since:
Servlet 3.1

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    onError(Throwable t)
    Invoked when an error occurs writing data using the non-blocking APIs.
    void
    onWritePossible()
    When an instance of the WriteListener is registered with a ServletOutputStream, this method will be invoked by the container the first time when it is possible to write data.

  • Method Details

    • onWritePossible

      void onWritePossible() throws IOException
      When an instance of the WriteListener is registered with a ServletOutputStream, this method will be invoked by the container the first time when it is possible to write data. Subsequently the container will invoke this method if and only if ServletOutputStream.isReady() method has been called and has returned false.
      Throws:
      IOException - if an I/O related error has occurred during processing

    • onError

      void onError(Throwable t)
      Invoked when an error occurs writing data using the non-blocking APIs.