Re: [google-appengine] Multitenancy Application

[Rajkumar Radhakrishnan]

@lhwong :

I believe it is not possible to do a single query "across all tenants", if
that is what you were looking for.

If you do not already have the names of your customers' namespaces (in your
own meta-data tables), then you can use Ikai's link to get those names and
make a count query once for each namespace.

Also note that the meta-data queries can be a bit
costly.
So, if you are not already storing namespaces, you might want to start doing
that.

Regards,
R.Rajkumar

On Sat, Dec 11, 2010 at 4:47 AM, Ikai Lan (Google)

> wrote:

> It seems like what you want are metadata queries to get the names of
> namespaces:
>
> http://code.google.com/appengine/docs/java/datastore/metadataqueries.html
>
> --
> Ikai Lan
> Developer Programs Engineer, Google App Engine
> Blogger: http://googleappengine.blogspot.com
> Reddit: http://www.reddit.com/r/appengine
> Twitter: http://twitter.com/app_engine
>
>
>
> On Thu, Dec 9, 2010 at 9:08 PM, Nick  wrote:
>
>> Hi,
>>
>> I have a multitenancy application with tenants creating their own contents
>> and store them in datastore using different namespaces. I'd like to analyze
>> data across tenants, for example total number of contents created. Can this
>> be done? If yes, what is the namespace to be used to access the data across
>> all tenants?
>>
>> Thanks,
>> --Wong Liong Hung
>>
>> --
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>>
>
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Re: [google-appengine] Multitenancy Application

[Ikai Lan (Google)]

It seems like what you want are metadata queries to get the names of
namespaces:

http://code.google.com/appengine/docs/java/datastore/metadataqueries.html

--
Ikai Lan
Developer Programs Engineer, Google App Engine
Blogger: http://googleappengine.blogspot.com
Reddit: http://www.reddit.com/r/appengine
Twitter: http://twitter.com/app_engine



On Thu, Dec 9, 2010 at 9:08 PM, Nick  wrote:

> Hi,
>
> I have a multitenancy application with tenants creating their own contents
> and store them in datastore using different namespaces. I'd like to analyze
> data across tenants, for example total number of contents created. Can this
> be done? If yes, what is the namespace to be used to access the data across
> all tenants?
>
> Thanks,
> --Wong Liong Hung
>
> --
> You received this message because you are subscribed to the Google Groups
> "Google App Engine" group.
> To post to this group, send email to google-appeng...@googlegroups.com.
> To unsubscribe from this group, send email to
> google-appengine+unsubscr...@googlegroups.com
> .
> For more options, visit this group at
> http://groups.google.com/group/google-appengine?hl=en.
>

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[google-appengine] Multitenancy Application

[Nick]

Hi,

I have a multitenancy application with tenants creating their own
contents and store them in datastore using different namespaces. I'd
like to analyze data across tenants, for example total number of
contents created. Can this be done? If yes, what is the namespace to be
used to access the data across all tenants?

Thanks,
--Wong Liong Hung

-- 
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"Google App Engine" group.
To post to this group, send email to google-appeng...@googlegroups.com.
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