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<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'>Hi<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'>I have tried to manage context with redland. Using
rdfproc (redland 1.2.0.1), I create parse a file to add triples in a context :<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'>$ rdfproc test-store parse-stream test-person.rdf
rdfxml ‘http://m3pe.org/test#’ ‘my_context’ –c<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'>This works correctly, but when I try to query the
database to retrieve context name :<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'>$ rdfproc test-store query sparql ‘http://m3pe.org/test#’
‘SELECT ?c WHERE { GRAPH ?c { ?s ?p ?o } }’ –c<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'>I have an empty result.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'>I have updated to redland 1.0.3, raptor 1.4.9,
rasqal-0.9.11 (on ubuntu breezy) and now, when I try to parse a file with :<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'>$ rdfproc test-store parse-stream test-person.rdf
rdfxml ‘http://m3pe.org/test#’ ‘my_context’ –c<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'>I have the error :<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>rdfproc: Error - Unknown
Raptor predicate identifier type 1<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>...<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>rdfproc: Error - Unknown
Raptor predicate identifier type 1<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'>*** glibc detected ***
double free or corruption (!prev): 0x0805f570 *** Abandon<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I use rdfproc to set up my data test set, and now I cannot
continue to load triples in a specific context. Do you have a solution ?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I try actually to manage redland context in ActiveRDF. I can
add and delete triple in a specific context but the only things which
doesn’t work for the moment is to query (with model.query_execute of the
ruby binding) a specific context. It seems to me that the only way is to use
the GRAPH matching of sparql. I have wrong ?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-IE style='font-size:
10.0pt;font-family:Arial'>I have just seen on <a
href="http://librdf.org/rasqal/TODO.html#sparql">http://librdf.org/rasqal/TODO.html#sparql</a>
that sparql doesn’t manage </span></font><a
href="http://www.w3.org/TR/2005/WD-rdf-sparql-query-20051123/#restrictByLabel">Restricting
by Graph IRI</a>. Do you have any other solution to get query results only for
a specific context, and no for the whole graph ?<font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>-- <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Renaud Delbru <o:p></o:p></span></font></p>
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