@bucabay: Yeah, I know.

Appjet has closed shop!

http://www.bucabay.com/2009/web-development/appjet-service-ends/

@naum: I think the jar is a self executable server. I think it works like Webrick in Rails. You run it, passing your application code as an argument and it does it’s thing.

And yeah, I think you actually are tied to it – can’t put your app on like Apache + MySQL. So I wouldn’t use it in a production environment, but it is a nice thing to have. It means that if AppJet closes shop you can still take your pet app and run it from somewhere.

Oh, if you look at the code – it is actually written in Javascript (using Rhino). Javascript from the ground up, in and out. Awesome!

limits are 1 source file and 50 MB of data.

storage is through appjet API and think object store (and JS is perfectly capable of intricate object graphs, though i am not certain if recursive
structures are permitted).

with the 1 source file, you still are able to branch for various URL path possibilities (as well as GET/POST code distinction)

not much of a java junkie so i do not know how their DL .jar works on cheap hosting or if that is only a option for your own server. not even sure if my mac which runs apache and RoR and PHP and used to test even has the proper java

obviously with everything server side, easy to spoof http transactions (would be interesting to see hashing + server side persistence implemented)

The AppJet storage library is scalable enough, but is a bit awkward to work with. Something better is in the works for the new version, I understand.

You may also like my app, Utility Mill it lets you make hosted web utilities in Python. It’s designed for much simpler apps than app jet but often that’s all you need.

Does this have a Scaleable Data Model or Database?

If not, well its really missing a fair chunk of functionality if you want to compare it to Google App Engine.

great, another distraction for me…