Cross Namespace Queries?

[objectuser]

I'm looking into using the namespace API in my application.  I usually like leveraging platform support for things like this to remove a category of defects from my application.

But after doing some searching, it appears that the namespace support is currently rather limited.  There is only primitive support for querying across namespaces (basically, "find all namespaces").  This implies to me that any sort of cross namespace work is much more complicated and inefficient.

Am I understanding this correctly?  Does anyone have advice for working with namespaces?

Thanks.

[objectuser]

I guess not. :)

I'm hoping that if I want to move to it in the future, I'm not hosed.  I think it might be an expensive move but a possible one.

[JH]

as far as I know you cannot query across namespaces. this is not the
intended use for namespaces.

[objectuser]

Well, I realize that almost all the time, you want your query to be within a namespace.  That's the intent: prevent data leakage across namespaces.  Good stuff there.

But sometimes, you want to query across them, like for administration, analysis, whatever.

Thanks.

[andreas schmid]

i agree.

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[JH]

well there are metadata queries to get all namespaces, then you could
query each of them... not the best solution but the namespace api is
really cool for it's intended use.

On Sep 14, 2:30 pm, andreas schmid <a.schmi...@gmail.com> wrote:
> i agree.
>
> On Sep 14, 2011, at 7:35 PM, objectuser wrote:
>
>
>
>
>
>
>
> > Well, I realize that almost all the time, you want your query to be within a namespace.  That's the intent: prevent data leakage across namespaces.  Good stuff there.
>
> > But sometimes, you want to query across them, like for administration, analysis, whatever.
>
> > Thanks.
>
> > --
> > You received this message because you are subscribed to the Google Groups "Google App Engine" group.

> > To view this discussion on the web visithttps://groups.google.com/d/msg/google-appengine/-/VoVIZb3X-REJ.