[Pgi-wg] Sec: Agreement on WS-Naming (ref by strawman)

[Duane Merrill]

First off, they may not be logically different (and therefore are
interchangable).  Also, WS-Addressing *requires* that the client consider
that reference parameters as opaque.  If your client is making decisions
based upon reference parameters, then it may fall victim to a fragile
dependence on the syntax/semantics of something it is not meant to
understand.

If a client needs to know they are different (because the address fields are
the same), WS-Naming is there to save the day by telling you that they are
different via the EPI.

-Duane

On Fri, Mar 20, 2009 at 10:42 AM, <m.riedel at fz-juelich.de> wrote:

> ok,
>
>  consider two EPRs with exactly the same wsa:to elements and only the
> referenceparameter is different indicating the different resources behind
> the service interface.
>
> How do you visualize/deal with the different EPRs if they are opaque!?
>
> Take care,
> Morris
>
>
>
>
> --------------------------------------------------------------------------------
> Morris Riedel
> SW - Engineer
> Distributed Systems and Grid Computing Division
> Central Institute of Applied Mathematics
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>
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> ----- Original Message -----
> From: Duane Merrill <dgm4d at virginia.edu>
> Date: Friday, March 20, 2009 3:39 pm
> Subject: Re: [Pgi-wg] Sec: Agreement on WS-Naming (ref by strawman)
>
> > On Fri, Mar 20, 2009 at 10:30 AM, <m.riedel at fz-juelich.de> wrote:
> >
> > >
> > >  but if I have an EPR obtained from UNICORE-BES (wsa:To +
> > > referenceproperties) that a client of ARC can't handle it
> > rightly would
> > > break our desired interop by maybe just using wsa:To URIs...
> > >
> >
> > The beauty of WS-Addressing is that reference parameters are
> > opaque.  As a
> > client, *you don't need to know* how to handle them.  And as a
> > service, you
> > don't need to know how to handle any other service's reference
> > parameterseither.  Only your own (and only then if you decide to
> > have them.)
> >
> > -Duane
> >
>
>
>
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