Re: shapes-ISSUE-130 (rdf dataset assumption): SHACL should not assume that the data graph is in an RDF dataset [SHACL Spec]

I think that Dimitris's implementation does work on endpoints.

The implementation that I am putting together will work on endpoints as well.


On 03/21/2016 04:12 AM, Dimitris Kontokostas wrote:
> Found it,
> the resolution does not say this but iirc the discussion (which is not 100%
> scribed) was talking about bnodes and how they can be identified with a remote
> call vs in-memory.
> ARQ and Sesame do something clever with bnodes which is not the case for all
> sparql engines but I am not trying to re-open the old issue, only trying to
> close this one using that resolution
> I propose we close this issue as: SHACL does not assume that the data graph is
> an RDF dataset as addressed by the current editor's draft
> This of course allows people to use datasets but SHACL doesn't take any
> special care in this case
> On Mon, Mar 21, 2016 at 12:59 AM, Holger Knublauch <
> <>> wrote:
>     On 18/03/2016 18:38, Dimitris Kontokostas wrote:
>>     On Fri, Mar 18, 2016 at 9:41 AM, Peter F. Patel-Schneider
>>     <<>
>>     <>> wrote:
>>         If it is always possible to construct the dataset, then I don't see
>>         a problem
>>         either.  However, is this always possible?  For example, a user who
>>         is just
>>         trying to validate a graph may not have permissions to create or
>>         modify a dataset.
>>     iirc there was a resolution on supporting only in-memory validation (not
>>     my favorite and cannot find it), e.g. full shacl may not run on remote
>>      datasets e.g. sparql endpoints. 
>>     With this in mind an implementation could just copy the shapes & data
>>     graph in memory and perform the validation there
>     The resolution that we made a while ago was to not require support for the
>     SPARQL endpoint protocol. Note that this is different from the question of
>     in-memory vs database. It means that implementations can still work
>     against databases, e.g. via an API such as ARQ or Sesame (for which all
>     major databases provide drivers for), while the SPARQL endpoint protocol
>     is too limiting for what SHACL needs to do.
>     Holger

Received on Monday, 21 March 2016 17:45:11 UTC