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Re: [grouper-users] Attributes

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  • From: Earl Lewis <>
  • To: Shilen Patel <>, "<>" <>
  • Subject: Re: [grouper-users] Attributes
  • Date: Fri, 31 May 2013 19:21:35 +0000
  • Accept-language: en-US
  • Authentication-results:; dkim=neutral (message not signed) header.i=none


Thanks for your response and the pointers to the videos. I was a little careless with my previous email when I asked about external attributes. I guess I made up that term as a way of contrasting internal attributes from the rest. I've been messing around with sort/search for a couple days now and not getting the results I'm expecting so I'm just trying to get some clarity around all the different pieces of sources.xml and search/sort.

I'll look at it all again after I go through the videos more thoroughly and let you know if I have any better luck or not. Thanks again. 

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801-554-3596 (mobile)

On 5/31/13 5:59 AM, "Shilen Patel" <> wrote:

Hi Earl,

You can mark attributes as "internal" to prevent them from being retrieved when making subject api calls (e.g. subject.getAttributes() ), unless you explicitly ask for them.  This prevents those attributes from being visible in the Grouper UI for instance.  Virtual attributes are usually based on other attributes and you can use _expression_ language to dynamically create them.

This entire video is based on virtual attributes and internal attributes:  

Also, part 4 in that series talks about member sorting and searching, which is a use case for using both of these.

I'm trying to figure out the context in which you're using "external attribute."  If you're thinking of external users, then these would be attributes of external subjects.   This doc goes into detail on that (and there's also a video):


-- Shilen

From: Earl Lewis <>
Date: Thursday, May 30, 2013 10:12 AM
To: "<>" <>
Subject: [grouper-users] Attributes

Can someone define for me the difference between an "internal attribute", an "external attribute" and a "virtual attribute"?

801-581-3635 (office)
801-554-3596 (mobile)

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