Re: [netmod] choice/case in tree diagrams
Martin Bjorklund <mbj@tail-f.com> Mon, 05 March 2018 14:26 UTC
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Date: Mon, 05 Mar 2018 15:26:02 +0100
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To: j.schoenwaelder@jacobs-university.de
Cc: vladimir@transpacket.com, netmod@ietf.org
From: Martin Bjorklund <mbj@tail-f.com>
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Subject: Re: [netmod] choice/case in tree diagrams
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Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de> 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'.)
- [netmod] choice/case in tree diagrams Martin Bjorklund
- Re: [netmod] choice/case in tree diagrams Juergen Schoenwaelder
- Re: [netmod] choice/case in tree diagrams Vladimir Vassilev
- Re: [netmod] choice/case in tree diagrams Juergen Schoenwaelder
- Re: [netmod] choice/case in tree diagrams Martin Bjorklund
- Re: [netmod] choice/case in tree diagrams Juergen Schoenwaelder
- Re: [netmod] choice/case in tree diagrams Vladimir Vassilev
- Re: [netmod] choice/case in tree diagrams Martin Bjorklund
- Re: [netmod] choice/case in tree diagrams Martin Bjorklund
- Re: [netmod] choice/case in tree diagrams Ladislav Lhotka
- Re: [netmod] choice/case in tree diagrams Per Hedeland
- Re: [netmod] choice/case in tree diagrams Ladislav Lhotka
- Re: [netmod] choice/case in tree diagrams Per Hedeland
- Re: [netmod] choice/case in tree diagrams Mahesh Jethanandani
- Re: [netmod] choice/case in tree diagrams Vladimir Vassilev
- Re: [netmod] choice/case in tree diagrams Martin Bjorklund
- Re: [netmod] choice/case in tree diagrams Martin Bjorklund
- Re: [netmod] choice/case in tree diagrams Robert Wilton
- Re: [netmod] choice/case in tree diagrams Lou Berger
- Re: [netmod] choice/case in tree diagrams Martin Bjorklund
- Re: [netmod] choice/case in tree diagrams Lou Berger
- Re: [netmod] choice/case in tree diagrams Juergen Schoenwaelder
- Re: [netmod] choice/case in tree diagrams Benoit Claise
- Re: [netmod] choice/case in tree diagrams Martin Bjorklund
- Re: [netmod] choice/case in tree diagrams Juergen Schoenwaelder
- Re: [netmod] choice/case in tree diagrams Martin Bjorklund
- Re: [netmod] choice/case in tree diagrams Juergen Schoenwaelder
- Re: [netmod] choice/case in tree diagrams Ladislav Lhotka
- Re: [netmod] choice/case in tree diagrams joel jaeggli
- [netmod] Closing this issue: choice/case in tree … Benoit Claise
- Re: [netmod] Closing this issue: choice/case in t… Benoit Claise