Re: [lyo-dev] [EXTERNAL] [oslc-op] [ANN] Apache Jena 3.16.0

["Nicholas Crossley" <nick_crossley@xxxxxxxxxx>]

RDF* is OK, but I
really wish they had generalized it to allow a shorthand for including
a set of triples, not just a single one. As mentioned in at least one of
Olaf
Hartig's
notes on RDF*, one way of implementing annotation other than the obvious
reification is to use a graph URI as a subject:

// Example from TriG spec
:G1 { :Monica a ex:Person ;
         
    ex:name "Monica Murphy" ;
         
    ex:homepage <http://www.monicamurphy.org>
;
         
    ex:email <mailto:monica@xxxxxxxxxxxxxxxx>
;
         
    ex:hasSkill ex:Management ,
         
                ex:Programming
. }
// Example from Olaf Hartig
:G1 :significance 0.8 .

The extensions
in SPARQL* do not necessarily extend to this data, but might happen to
work in some implementations if the RDF* was parsed into single-statement
named graphs and SPARQL* queries were also translated into queries on named
graphs. Why not make this correspondence cleaner and allow annotation of
multiple statements in a convenient manner? I can't see people using constructs
like this without further automation or syntactic sugar:

<<:Monica a ex:Person>>
                     
          :significance 0.8 .
<<:Monica ex:name "Monica
Murphy">>                
    :significance 0.8 .
<<:Monica ex:homepage <http://www.monicamurphy.org>
>>  :significance 0.8 .
<<:Monica ex:email <mailto:monica@xxxxxxxxxxxxxxxx>
>>  :significance 0.8 .
<<:Monica ex:hasSkill ex:Management>>
                  :significance
0.8 .
<<:Monica ex:hasSkill ex:Programming>>
                 :significance
0.8 .

Yes, as shown
in the Jena docs, you can write SPARQL Update clauses to automate the insertion
of such annotations to a quad store that already includes such graphs,
but that somewhat misses the point; you have no easy way to express this
kind of batch annotation in the original data source.

Nick.



From:
       "Andrii
Berezovskyi" <andriib@xxxxxx>
To:
       "oslc-op@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
<oslc-op@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx>, "lyo-dev@xxxxxxxxxxx"
<lyo-dev@xxxxxxxxxxx>
Date:
       08/26/2020
08:15 AM
Subject:
       [EXTERNAL]
[oslc-op] [ANN] Apache Jena 3.16.0
Sent
by:        oslc-op@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx

---

Hello,

This is great news for us, we will make sure to upgrade to 3.16 in Lyo
4 so that all apps can take advantage of RDF*

--
Andrew

On W29 13 July 2020 at 16:54:45, Andy Seaborne (andy@xxxxxxxxxx) wrote:
> The Apache Jena development community is pleased to
> announce the release of Apache Jena 3.16.0.
> 
> In this release:
> 
> Completed support for RDF* with implementation for TDB1 and TDB2.
> https://urldefense.proofpoint.com/v2/url?u=https-3A__jena.apache.org_documentation_rdfstar_&d=DwIGaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=GjwCRqtPs7eIJIYQ2Ts1FtMhYFjprGd8jgbGBRR0LKQ&m=3Ey_4diW7NKbQY75WKb8etMVGin2QjB7kTQZHKn8zQo&s=VVvJiZTFoUsTFrjlNrFEDNWIIRKqPFUJublgk4ENVis&e=
> 
> SHACL Compact Syntax reader
> https://urldefense.proofpoint.com/v2/url?u=https-3A__jena.apache.org_documentation_shacl_&d=DwIGaQ&c=jf_iaSHvJObTbx-siA1ZOg&r=GjwCRqtPs7eIJIYQ2Ts1FtMhYFjprGd8jgbGBRR0LKQ&m=3Ey_4diW7NKbQY75WKb8etMVGin2QjB7kTQZHKn8zQo&s=aXHrabxCO_bG--JmZQMh8SdCHHOzilPqyz1fwq2eKhc&e=
> 
> This release is soon after 3.15.0 to fix the problem with
> the standalone Fuseki server.

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