http://slim3demo.appspot.com/ worked great for me.
It is one of the most amazing piece of software I've ever seen.

On Wed, Jan 5, 2011 at 2:55 AM, Max <[email protected]> wrote:

> I would suggest to play with low level API before you make decision
> between JDO/JPA/Objectify/twig
>
> That will help you better understand bigtable.
>
> On Jan 5, 1:29 pm, Didier Durand <[email protected]> wrote:
> > Hi,
> >
> > I am also a big fan of Objectify: simple to understand, efficient,
> > light-weight, open source. (+ very well documented!). I abandonned
> > JDO / JPA for it.
> >
> > Before starting with jdo / jpa, you should read this thread (posts by
> > Ikai Lan from Google especially): future of JDO / JPA on GAE doesn't
> > look so bright. Readhttp://
> groups.google.com/group/google-appengine-java/browse_thread/th...
> >
> > good luck
> > regards
> >
> > didier
> >
> > On Jan 4, 8:16 pm, John <[email protected]> wrote:
> >
> >
> >
> >
> >
> >
> >
> > > If your app is only for GAE (it will not need to run in a 'standard'
> Java
> > > Web App container) Objectify <
> http://code.google.com/p/objectify-appengine/>provides annotation-based
> persistence with a very thin layer over the GAE
> > > datastore. There are certainly limitations with JPA/JDO. My preference
> is
> > > JDO for portable code, as it is more consistent with a non-SQL
> database.
> > > Among the more annoying limitations in JDO is the prohibition of
> > > superclass-table inheritance.
>
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-- 
Guit: Elegant, beautiful, modular and *production ready* gwt applications.

http://code.google.com/p/guit/

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