As I mentioned in my previous message, these operators are not native to the
GAE datastore, but are implemented by doing multiple queries and aggregating
the results. So it's not a simple matter to add support for these operators
to OpenBD. However, if you're really interested in tackling this work I'll
be happy to point you to the code.

Vince

On Sat, Dec 12, 2009 at 3:41 AM, Rainer <[email protected]> wrote:

> Yesterday, I posted a couple of questions about the datastore in the
> thread
> http://groups.google.com/group/openbd/browse_thread/thread/8dfde1d9daee2f5e
> ,
> where I point at the manual of GAE (http://code.google.com/appengine/
> docs/java/datastore/queriesandindexes.html).
>
> In that manual, the functionalities  != (not equal to), contains(),
> and || (logical or), are explained as working functionalities in GAE
> datastore. So, IMHO, it's only a matter of implementing those into
> OpenBD. Later on today, I will try to implement those functionalities
> in OpenBD/GAE, maybe someone can point me out where (which jars) I can
> add those functionalities??
>
>

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