HttpUpgradeHandler (Servlet 4.0 API Documentation - Apache Tomcat 9.0.37)

javax.servlet.http

## Interface HttpUpgradeHandler

-     public interface HttpUpgradeHandler

  Interface between the HTTP upgrade process and the new protocol.
  Since:
    Servlet 3.1

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `destroy()` This method is called after the upgraded connection has been closed.
    `void` | `init(WebConnection connection)` This method is called once the request/response pair where `HttpServletRequest.upgrade(Class)` is called has completed processing and is the point where control of the connection passes from the container to the `HttpUpgradeHandler`.

- - ### Method Detail

    - #### init

          void init(WebConnection connection)

      This method is called once the request/response pair where `HttpServletRequest.upgrade(Class)` is called has completed processing and is the point where control of the connection passes from the container to the `HttpUpgradeHandler`.
      Parameters:
        `connection` - The connection that has been upgraded
      Since:
        Servlet 3.1

    - #### destroy

          void destroy()

      This method is called after the upgraded connection has been closed.

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