Hi,

My understaning of Datastore based on Google BigTables is that you
can't share objects in 2 different apps (i.e using different id)
because the app id is part of the key of the entity. BigTable,
Datastore and GAD enforce a strong sandboxing based on this id.

The app id in the key is described here:
http://code.google.com/appengine/articles/storage_breakdown.html#anc-tables

So, to share unique copy of same data, you have develop some inter-app
communication via servlets called by 1 application into the other

regards

didier

On Jan 1, 1:55 pm, dreamer <[email protected]> wrote:
> Hi,
>
> Not sure if possible to share datastore objects across application,
> single reporting application for several customer applications,
> assuming reporting app know complete keys.

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