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Subject: RE: [xri] versioning of authirity section
Even though XRIs don't always need to resolve, I tend to think of the modal case as being URIs that do resolve. If versioning can be applied to name authorities, I definitely agree that we need to pay close attention to the details of what that means and how resolution is specified/handled. Would you go so far as to version parts of the name authority? For example: host[;2002-04-01T20:10:23Z].foo.biz/this/resource My sense is that using versioning on parts of a DNS name might complicate things more that it would be worth. Such a feature might be easier to implement with name authorties that don't use DNS names (since we are creating a new resolution mechanism for those anyway). Thoughts? Mike > -----Original Message----- > From: Peter C Davis [mailto:peter.davis@neustar.biz] > Sent: Monday, April 21, 2003 1:09 PM > To: Lindelsee, Mike > Cc: OASIS XRI > Subject: Re: [xri] versioning of authirity section > Not sure it is required. I do not recall seeing a requirement that > XRI:URI's MUST resolve (forever). While i do agree that resolution > processing language needs special attention in these cases. All the > resolver can do is locate the "current" resource at the noted > location, > not the version instance. However, using RegEx (but requiring > the input > string being the complete URI), one could rewrite the "versioned > authority" to a "versioned resource" during dereferencing using DDDS. > > I think this could be particularly powerfull when the authority > host.foo.biz[;2002-04-01T20:10:23Z]/this/resource is declared > equivelent > (aka Cross-Referenced) to some other XRI (say > urn:foo:(+resource)[;2003-04-12T00:00:00Z] > > --- peterd > > >>line 159: > >>[ISSUE: It would be nice if naming authority parts were NOT > >>versioned to > >>make resolution simpler. Then, only the local part segments have > >>versioning info in them, and interpretation of this versioning > >>information would be local to the client and ultimate leaf > >>directory. ] > >> > >><snip/> > >> > >>xri://some.domain.int[;2001-03-04T20:15:40Z]/foo/bar > >> > >>esp. since URIs are re-assignable. This allows for "This was the > >>authority at time T". > >> > >>--- peterd > >> > >> > >> > >> >
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