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RE: [grouper-dev] grouper attribute framework

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  • From: Chris Hyzer <>
  • To: Tom Barton <>, "" <>
  • Subject: RE: [grouper-dev] grouper attribute framework
  • Date: Thu, 11 Jun 2009 11:35:31 -0400
  • Accept-language: en-US
  • Acceptlanguage: en-US

> attribute creation rights are delegated. So I agree with TomZ that we
> should build this in up front, even if we don't intend initially to

Yes, we will definitely have and use namespaces... I learned the lesson from
the current implementation of global group types... its good for a few uses,
but hard to do widespread across many apps that use grouper.

> Of course, namespace management is one of grouper's primary
> capabilities, so we can leverage what we've already built.


> And we'll need to recognize that some attributes are delivered with the
> system and so reserve a namespace for those.
> I suppose we could root the namespace for attributes in the local
> grouper database under a new root stem, say attr:, or under the etc:
> root stem, as in etc:attr:. Then delegation is supported in the usual
> way.

I was thinking about this, and I would prefer it if the institution specified
a location for Grouper builtin attributes. For Penn it could be
penn:etc:grouperAttrs, then grouper will auto-create the structure in
there... maybe the default could be etc:attr, but the site could customize

> But we'll need a convention about which object type under this stem
> define attributes, probably constrained by the requirement (if we keep
> it) to enable attributes to be attached to attributes. Eg, will the
> group etc:attr:enabledate lend its name to the enabledate system
> attribute? And if Bob is delegated CREATE to etc:attr:bob:, then he can
> define attributes starting with bob:?

I think he will be able to create attributes starting with etc:attr:bob:,

I added a few more points to the wiki regarding this and other things... :)


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