Re: [netmod] Comment on draft-clacla-netmod-yang-model-update-02

On Wed, 2017-11-15 at 08:00 +0100, Martin Bjorklund wrote:
> Balazs Lengyel <balazs.lengyel@ericsson.com> wrote:
> > See bellow!
> > 
> > 
> > On 2017-11-15 05:22, Juergen Schoenwaelder wrote:
> > > In XML land, this is mostly a change of the namespace (not of the
> > > prefix) if one keeps the same structure, no? In JSON land, the change
> > > of the module name more directly becomes visible in instance data; but
> > > this is all encoding details.
> > 
> > BALAZS: Even in XMLland we store the prefix as part of any leaf with
> > type instance-identifier or identityref and potentially CLI scripts.
> 
> This would be a broken implementation.  Since the prefix might change
> you cannot store them as is.  You have to translate the prefix to
> namespace/module name, and store that.

I agree. In XML land, there was a lot of software that relied on specific
prefixes, and it turned out to be a big problem.

> 
> That said, this encoding rule is really unfortunate.  We fixed it in
> the JSON encoding, and I wish we had the same in XML...

Prefixes still give you some flexibility, for example the ability to import two
different revisions of the same module.

Lada

> 
> 
> /martin
> 
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Ladislav Lhotka
Head, CZ.NIC Labs
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