- From: Andy Seaborne <andy@apache.org>
- Date: Sun, 9 Aug 2020 17:45:33 +0100
- To: thomas lörtsch <tl@rat.io>
- Cc: public-rdf-star@w3.org
On 08/08/2020 14:49, thomas lörtsch wrote:
>
>> 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
Great list - do these PG modes support the combined deletion? And RDF*
terms in both subject and object with term-nesting?
Credit to Stardog - they state clearly their coverage: subject position,
not nesting, and they do support cascading deletion.
AnzoGraph documentation suggests subject only ("Each edge can have up to
256 properties.")
Most systems only show subject position examples (Jena included!)
What we seem to have is two implementation approaches - systems
annotating the triple, and systems with independent RDF* terms.
(no judgement about which is best)
Andy
>
> 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 Sunday, 9 August 2020 16:45:48 UTC