Juergen Schoenwaelder <[email protected]> wrote:
> On Mon, Mar 05, 2018 at 02:54:18PM +0100, Martin Bjorklund wrote:
> > >
> > > So it seems the running code got it right. ;-)
> >
> > As the author of that code, I think that was purely by accident...
> >
> > But I'm not convinced it is the correct solution. We have one example
> > in the other thread where someone was confused by the "rw" flag and
> > thought that it implied that the node would be present in the data
> > tree.
> >
>
> So what does rw mean?
>
> (i) The schema node has a rw property.
> (ii) The schema node can be instantiated and the instantiated data node
> has a rw property.
>
> I think it is difficult to have both at the same time. If the tree is
> a representation of schema nodes, then (i) seems to make more
> sense. That said, the explanation in 2.6 is somewhat vague since it
> says 'data' and not 'nodes' (like everywhere else):
>
> OLD:
>
> <flags> is one of:
> rw for configuration data
> ro for non-configuration data, output parameters to rpcs
> and actions, and notification parameters
>
> NEW:
>
> <flags> is one of:
> rw for configuration data nodes
> ro for non-configuration data nodes, output parameters to rpcs
> and actions, and notification parameters
I think this is ok. But that means that we also have to add:
-- for a choice or case node
But in order to be consistent, we should probably have:
-- for a choice, case, input or output node
This means that the correct tree syntax for choice and case will be:
+-- (subnet)?
+-- :(prefix-length)
| +--rw prefix-length? uint8
+-- :(netmask)
+--rw netmask? yang:dotted-quad
/martin
> The document (as far as I searched for it) does not clearly say that
> 'node' means 'schema node'. In hindsight, it might have been useful to
> explicitely import terminology from RFC 7950 and to use it carefully
> (RFC 7950 has 'schema node' and 'data node' but here we largely talk
> about 'nodes' - and my assumption is that this means 'schema nodes'.)
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