RE: [xri] Bracketing Refs [Authority Resolution]

["Wachob, Gabe" <gwachob@visa.com>]

Before you respond to my other email, could you spell out exactly what
the motivation for this proposal is? Specifically what gap in CD-01 are
you addressing?

	-Gabe 

> -----Original Message-----
> From: Steven Churchill [mailto:steven.churchill@xdi.org] 
> Sent: Thursday, January 12, 2006 11:44 PM
> To: xri@lists.oasis-open.org
> Subject: [xri] Bracketing Refs [Authority Resolution]
> 
> 
> 
> This proposes a bracketing scheme for outputting Refs during 
> the authority
> resolution phase. This provides a human and machine readable way to
> negotiate a nested Ref resolution hierarchy.
> 
> <XRDS>
>     
>     <XRD-A /> 
>     <RefRes>
>         <XRD-E />
> 	  <RefRes>
>             <XRD-H />
>     	  </RefRes>
>         <XRD-F />
>         <XRD-G />
>     </RefRes>
>     <XRD-B />    
>     <XRD-C />
>     <RefRes>
>         <XRD-I />
>     </RefRes>
>     <XRD-D />
> 
> </XRDS>
> 
> 
> The <RefRes> element is used to bracket the XRDs necessary to 
> resolve a Ref.
> The <RefRes> element MUST appear between two <XRD> elements. 
> (It would never
> fall at the beginning or end, and two <RefRes> elements would 
> never appear
> together.)
> 
> The final <XRD> in the <RefRes> is that used for the 
> subsegment resolution
> of the <XRD> that follows the <RefRes>. Therefore, in the 
> example above, the
> subsegment resolution XRD chain is:
> 
>     G, B, I, D
> 
> Note that, since the <RefRes> "replaces" the preceding <XRD> from a
> subsegment resolution standpoint, the number of (top-level) 
> XRDs in the
> <XRDS> is always equal to the number of authority subsegments.
> 
> ~ Steve
> 
> 
> 
> 
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