com.vaadin.server
Interface SessionExpiredHandler

All Superinterfaces:

RequestHandler, java.io.Serializable

All Known Implementing Classes:

HeartbeatHandler, PushRequestHandler, UidlRequestHandler

public interface SessionExpiredHandler
extends RequestHandler

A specialized RequestHandler which is capable of sending session expiration messages to the user.

Since:

7.1

Author:

Vaadin Ltd

Method Summary

boolean

handleSessionExpired(VaadinRequest request, VaadinResponse response) Called when the a session expiration has occured and a notification needs to be sent to the user.

Methods inherited from interface com.vaadin.server.RequestHandler

handleRequest

Method Detail

handleSessionExpired

boolean handleSessionExpired(VaadinRequest request,
                             VaadinResponse response)
                             throws java.io.IOException

Called when the a session expiration has occured and a notification needs to be sent to the user. If a response is written, this method should return true to indicate that no more SessionExpiredHandler handlers should be invoked for the request.

Parameters:

request - The request to handle

response - The response object to which a response can be written.

Returns:

true if a response has been written and no further request handlers should be called, otherwise false

Throws:

java.io.IOException - If an IO error occurred

Since:

7.1