JCR UUID syntax

[Andreas Hartmann <an...@apache.org>]

Hi Jackrabbit community,

I'm sorry if this question is answered in the spec, I didn't find anything
in the sections covering referencable nodes.

Is the syntax for UUID strings (as returned by Node.getUUID) part of the spec,
or implementation specific?

A mail by Tim Reilly and the Jackrabbit javadocs contain a reference to

http://www.ietf.org/internet-drafts/draft-mealling-uuid-urn-05.txt
or -01.txt, respectively. Unfortunately both of them return a 404
(the IETF search page is down ATM).

Thanks for any hints!

Regards,
-- Andreas

Re: JCR UUID syntax

[Jukka Zitting <ju...@zitting.name>]

Hi,

Andreas Hartmann kirjoitti:
> Is the syntax for UUID strings (as returned by Node.getUUID) 
> part of the spec, or implementation specific?

I'm actually not sure. I believe the intention is for implementations to 
use the standard UUID format, but some legacy content repositories could 
also use custom identifiers (the global identifiers in Notes would be a 
good example).

> A mail by Tim Reilly and the Jackrabbit javadocs contain a reference to
> http://www.ietf.org/internet-drafts/draft-mealling-uuid-urn-05.txt
> or -01.txt, respectively. Unfortunately both of them return a 404
> (the IETF search page is down ATM).

The UUID class in the Jackrabbit source tree is based on an earlier 
version of the UUID class from the commons-id package. The 
mealling-uuid-urn draft was promoted to RFC 4122 during the summer 
without any changes to the UUID format. The pointer was changed in the 
commons-id sources (see bug 35820 in the Apache Bugzilla), but the 
change never propagated to Jackrabbit as we perhaps should consider 
making commons-id a normal dependency once it moves out of the commons 
sandbox.

BR,

Jukka Zitting

Re: JCR UUID syntax

[Alexandru Popescu <th...@gmail.com>]

#: Stefan Guggisberg changed the world a bit at a time by saying on  12/2/2005 12:15 PM :#
> On 12/2/05, Alexandru Popescu <th...@gmail.com> wrote:
> 
>> ... Jackrabbit is using the jug library ...
> 
> ?? not that i would know...
> 
> cheers
> stefan
> 

Yeah. My mistake. I have rechecked and indeed it is not. However the format is the one I have 
described :-).

./alex
--
.w( the_mindstorm )p.

Re: JCR UUID syntax

[Stefan Guggisberg <st...@gmail.com>]

On 12/2/05, Alexandru Popescu <th...@gmail.com> wrote:

> ... Jackrabbit is using the jug library ...

?? not that i would know...

cheers
stefan

Re: JCR UUID syntax

[Alexandru Popescu <th...@gmail.com>]

#: Andreas Hartmann changed the world a bit at a time by saying on  12/2/2005 11:35 AM :#
> Hi Jackrabbit community,
> 
> I'm sorry if this question is answered in the spec, I didn't find anything
> in the sections covering referencable nodes.
> 
> Is the syntax for UUID strings (as returned by Node.getUUID) part of the spec,
> or implementation specific?
> 
> A mail by Tim Reilly and the Jackrabbit javadocs contain a reference to
> 
> http://www.ietf.org/internet-drafts/draft-mealling-uuid-urn-05.txt
> or -01.txt, respectively. Unfortunately both of them return a 404
> (the IETF search page is down ATM).
> 
> Thanks for any hints!
> 
> Regards,
> -- Andreas
> 

afaik the UUID is described on some IETF. Also if IIRC there are 2 general formats. Jackrabbit is 
using the jug library to generate the UUID and this returns UUID in the format:

HEX_CHAR = [abcdefABCDEF0123456789]
UUID_PATTERN= HEX_CHAR{8}-HEX_CHAR{4}-HEX_CHAR{4}-HEX_CHAR{4}-HEX_CHAR{12}

./alex
--
.w( the_mindstorm )p.