On Mon, 2017-12-04 at 18:22 +0100, Juergen Schoenwaelder wrote:
> On Mon, Dec 04, 2017 at 06:05:58PM +0100, Ladislav Lhotka wrote:
> > On Mon, 2017-12-04 at 17:34 +0100, Martin Bjorklund wrote:
> > > Ladislav Lhotka <[email protected]> wrote:
> > > > Hi,
> > > >
> > > > if we have
> > > >
> > > > augment "/target/node" {
> > > > when "...";
> > > > ...
> > > > }
> > > >
> > > > is the "when" expression supposed to be evaluated separately in each
> > >
> > > datastore,
> > > > and the augment applied only in those datastores where the result is
> > > > true?
> > >
> > > Yes.
> >
> > But then it cannot be guaranteed that the schema for <operational> is a
> > superset
> > of the schema of configuration datastores - the when expression can evaluate
> > to
> > false in <operational> but true in <intended>.
> >
>
> For me, its still the same schema - a when expression does not change
> my notion of 'schema'.
Well, according to draft-ietf-netmod-revised-datastores-07:
o datastore schema: The combined set of schema nodes for all modules
supported by a particular datastore, taking into consideration any
deviations and enabled features for that datastore.
And "when" determines whether a given schema node is valid or not. So if a
schema node is invalid in the schema of <operational> but valid in the schema of
<intended>, then the former can hardly be a superset of the latter.
Lada
>
> /js
>
--
Ladislav Lhotka
Head, CZ.NIC Labs
PGP Key ID: 0xB8F92B08A9F76C67
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