Hey Jakob

Thanks for the feedback, some comments inline:


On 8/20/13 7:29 AM, "Jakob Frank" <ja...@apache.org> wrote:

>Hi Andy, all
>
>I had a quick look through the document - and overall I like the clean
>and simple approach of the proposed format.
>
>Here are my first comments:
>- HTTP PATCH targets a resource - IMHO it should be allowed that the
>server limits changes to this addressed resource. (the illustrative
>example in the doc modifies two resources)

It depends what the resource identifies, the HTTP resource could easily be
a SPARQL Graph store in which case modifying multiple different RDF
resources is perfectly fine IMO.

Possibly making this a MAY constraint in the specification would make
sense.

>
>- if you continue the resource-centered approach, you could allow to
>skip the subject in the patch file. (but then: how to distinguish
>between POC and SPO statements?)

Interesting thought, though I think we likely want to allow modifying many
resources per my above comment so having this mechanism doesn't
necessarily make sense.  If we did this to avoid the triple/quad
distinction we would need to properly put some up front definition

>
>- what about allowing wildcards for deletion? e.g.
>D <http://example/bob> foaf:name ?x .
>to delete all foaf:names for ex:bob

This makes the language more query like, the intention was very much to
just stream a set of specific changes not to be able to express more
update language style constructs.

>
>- is the ordering of the statements significant? i.e. what is the
>result of the following patch:
>D <http://example/s> <http://example/p> <http://example/o> .
>A <http://example/s> <http://example/p> <http://example/o> .
>is it different to the result of
>A <http://example/s> <http://example/p> <http://example/o> .
>D <http://example/s> <http://example/p> <http://example/o> .

Yes the ordering is significant, it is a streaming format by design so
changes MUST be processed in order.

Thanks,

Rob

ps. cc'd d...@jena.apache.org so people interested there can also see your
feedback

>
>
>Best,
>Jakob
>
>On 12 August 2013 11:23, Andy Seaborne <a...@apache.org> wrote:
>> On 11/08/13 18:07, Andy Seaborne wrote:
>>>
>>> Rob, all,
>>
>>
>> Wrong dev@ :-(
>>
>> But your welcome to comment and make suggestions :-)
>>
>> The doc is:
>>
>> http://afs.github.io/rdf-patch/
>>
>>         Andy
>>
>>
>>>
>>> I've made some changes : I've moved the discussion of features to an
>>> appendix and added some possibilities for some of these items.
>>>
>>> http://afs.github.io/rdf-patch/#notes
>>>
>>>      A.1 Line Mode
>>>      A.2 Metadata
>>>          A.2.1 Linking
>>>          A.2.2 Inline
>>>      A.3 Transaction Boundaries
>>>      A.4 Alternative Blank Node Syntax
>>>      A.5 Alignment Errors
>>>      A.6 Binary Format
>>>
>>> - - - - -
>>>
>>> Prompted by
>>> https://twitter.com/pdxleif/status/366267325818736640
>>>
>>> Where should we encourage discussion in going to a wider audience?
>>>
>>> One possibility is github, using the issues area of the git repo .  But
>>> you have to know where to look and the semweb world is still quite
>>> mailing-list driven.
>>>
>>> public-sparql-...@w3.org makes some sense (it's not a high volume
>>>list).
>>>   Other more general lists like semantic-...@w3.org have their pros and
>>> cons.
>>>
>>>      Andy
>>
>>

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