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Re: RDF* implementations and PG/SA modes [was: Re: Apache Jena support for RDF*]

From: thomas lörtsch <tl@rat.io>
Date: Tue, 11 Aug 2020 09:44:29 +0200
Cc: Andy Seaborne <andy@apache.org>, public-rdf-star@w3.org
Message-Id: <BC39EB37-6C97-4B91-951D-7EFC6E7281DF@rat.io>
To: Ghislain Atemezing <ghislain.atemezing@icloud.com>
Hi Gishlain,

thank you for the pointers. However I can’t figure out which mode is supported. I lack familiarity with the code to really make sense of the discussion on GitHub [3] whereas the other pages you provided links to are very sparse on detail.

I did notice a discussion about supporting quads in RDF* in [3] which I find very interesting.

Thomas


> On 10. Aug 2020, at 12:04, Ghislain Atemezing <ghislain.atemezing@icloud.com> wrote:
> 
> Hi Thomas,
> Regarding rdfjs/N3.js, see the announcement here by Ruben [1], Github link [2] and the data model spec [3]
> 
> HTH
> 
> Best,
> 
> [1]  https://twitter.com/RubenVerborgh/status/1288217897421201409
> [2] https://github.com/rdfjs/N3.js/tree/v1.6.0#compatibility
> [3] https://github.com/rdfjs/data-model-spec/pull/165
> 
>> Le 8 août 2020 à 15:49, thomas lörtsch <tl@rat.io> a écrit :
>> 
>> 
>>> On 8. Aug 2020, at 12:18, thomas lörtsch <tl@rat.io> wrote:
>>> Do you or anybody here happen to keep track of which implementations out there support which mode - SA, PG, both?
>> 
>> If that sounded a little lazy, then maybe it was… So here’s my homework:
>> 
>>    SA  PG  Implementation  Documentation
>> 
>>        x   AnzoGraph       https://docs.cambridgesemantics.com/anzograph/v2.2/userdoc/lpgs.htm?Highlight=rdf
>>    x       BlazeGraph      https://github.com/blazegraph/tinkerpop3
>>    x       GraphDB         http://graphdb.ontotext.com/documentation/9.2/free/devhub/rdf-sparql-star.html
>>    x       Jena            https://jena.apache.org/documentation/rdfstar/
>>    x   x   N3              shaky evidence: I seem to remember a mail on this list saying they can support both
>>    x       rdf4j           https://rdf4j.org/documentation/programming/rdfstar/
>>        x   Stardog         https://www.stardog.com/docs/#_edge_properties
>> 
>> Nobody seems to support mode switching. Stardog uses a modified RDF* syntax that unambiguously asserts the triple it annotates. 
>> 
>> Absolutely no guarantee that the list is correct, much less complete. 
>> Additions and corrections obviously very welcome!
>> 
>> 
>> Thomas
> 
Received on Tuesday, 11 August 2020 07:44:46 UTC

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