Use Vaadin with google app engine

Question

I'm just wondering if its possible to have a Vaadin project working under google app engine? If it is then please refer me to any kind of documentation or "how-to".

Answer 1

The Vaadin wiki contains a step-by-step process.

Answer 2

There is an ticket about supporting Vaadin by GAE: http://dev.vaadin.com/ticket/2835

I've tried it - and id works. First of all you need to enable sessions:

<sessions-enabled>true</sessions-enabled>

and use GAEApplicationServlet instead of default vaadin's.

Second: make sure that all you domain objects, are serializable (i bet it's no problem, btw)

And third: move all static files (theme css and images) from vaadin's jar to your webapp folder

Answer 3

Yes, it is possible .
To start with something easy, read the tutorial to create a simple address book and download the project for Google App Engine here .

Answer 4

The good news is that it works.
There are only a few things to consider, all described in http://vaadin.com/book/-/page/advanced.gae.html . When it comes to persistence, things get a bit more tricky. You might have a look at http://code.google.com/p/instant-webapp/ where most things have been adressed and more or less solved.

Answer 5

A step by step tutorial for deploying your vaadin application to GAE can be found by following this link .

Answer 6

Yes you can use Vaadin donot know of specific gae\vaadin doc but it's not different to running vaadin on your machine it's just GWT based rich ajax liberary