Grouper Developers Forum

["GW Brown, Information Systems and Computing" <>]

--On 08 March 2008 22:26 -0500 Chris Hyzer 
<>
 wrote:

> > [AI] (Tom) will consult with Blair about duplicate columns of IDs/UUIDs
>
> I was intrigued at how this would work, so I took the liberty of finding
> and implementing a good and working solution for this.  Let me know any
> feedback.  If you don't want me to commit soon, I will probably commit to
> a branch so I can keep these changes handy for when we need them.
>
> https://wiki.internet2.edu/confluence/display/GrouperWG/Hibernate+ID%27s+
> and+versioning
I think it would be best to leave these changes to the beginning of the 
next cycle as they may have knock on effects it is hard to track down just 
now. e.g. if we remove the uuid column, we presumably get rid of getUuid 
and findByUuid methods in favour of getId and findById. I'd rather not have 
to make those kinds of changes now.

I'd definitely be interested in scripts which manipulated an existing 
schema and retained data to complete an upgrade. Given the time it can take 
to export and import data schema changes can otherwise be a barrier to 
adoption of new versions.

Gary



----------------------
GW Brown, Information Systems and Computing