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From: Onno P. <onn...@gm...> - 2006-08-23 11:28:49
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Dear rdfapi-php team, The following examples are snippets from much larger OWL constructs. They have no meaning by themselves, just as illustration of the way the RAP netapi handles this. My question: does this example show an RAP bug? Onno Paap This piece of OWL code has no errors in Vowlidator: ============ <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:owl="http://www.w3.org/2002/07/owl#" xml:base="http://www.15926.org/2006/02/onnopaap1"> <owl:Class rdf:ID="AbstractObject"> <rdf:type rdf:resource="#ClassOfAbstractObject"/> </owl:Class> <owl:Class rdf:ID="ClassOfAbstractObject"/> </rdf:RDF> ============ Loaded in RAP gives 3 triples: ============ 1. Resource: http://www.15926.org/2006/02/onnopaap1#AbstractObject RDF Node: rdf:type RDF Node: owl:Class 2. Resource: http://www.15926.org/2006/02/onnopaap1#AbstractObject RDF Node: rdf:type Resource: http://www.15926.org/2006/02/onnopaap1#ClassOfAbstractObject 3. Resource: http://www.15926.org/2006/02/onnopaap1#ClassOfAbstractObject RDF Node: rdf:type RDF Node: owl:Class ============ The RAP netapi makes this out of it: ============ <?xml version="1.0" encoding="UTF-8" ?> <!-- Generated by RdfSerializer.php from RDF RAP. # http://www.wiwiss.fu-berlin.de/suhl/bizer/rdfapi/index.html ! --> <rdf:RDF xml:base="http://www.15926.org/2006/02/onnopaap1#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:ns1="http://www.15926.org/2006/02/onnopaap1#"> <owl:Class rdf:ID="AbstractObject" /> <ns1:ClassOfAbstractObject rdf:ID="AbstractObject" /> <owl:Class rdf:ID="ClassOfAbstractObject" /> </rdf:RDF> ============ Which gives errors in Vowlidator: ============ [1] WARNING - Parser Indication: http://www.15926.org/2006/02/onnopaap1#[15:53]: {W105} Redefinition of ID: AbstractObject [2] WARNING - Parser Indication: http://www.15926.org/2006/02/onnopaap1#[13:37]: {W105} Previous definition of 'AbstractObject'. ============ |
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From: Richard C. <ri...@cy...> - 2006-08-23 12:27:55
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Hi Onno, The RDF/XML as serialized by RAP is legal, and when parsed will produce exactly the same triples as the original snippet. Both serializations are equivalent. Vowlidator seems to dislike the fact that RAP uses rdf:ID twice with the same value. That's allowed by the specs, although admittedly you could argue that it's bad style. (And indeed it's just a warning in Vowlidator, not an error.) So it's not a RAP bug, but it's an indication that Vowlidator is a bit too picky :-) You can safely ignore the warning. Yours, Richard On 23 Aug 2006, at 13:28, Onno Paap wrote: > Dear rdfapi-php team, > The following examples are snippets from much larger OWL constructs. > They have no meaning by themselves, just as illustration of the way > the RAP netapi handles this. > My question: does this example show an RAP bug? > Onno Paap > > This piece of OWL code has no errors in Vowlidator: > ============ > <rdf:RDF > xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" > xmlns:owl="http://www.w3.org/2002/07/owl#" > xml:base="http://www.15926.org/2006/02/onnopaap1"> > <owl:Class rdf:ID="AbstractObject"> > <rdf:type rdf:resource="#ClassOfAbstractObject"/> > </owl:Class> > <owl:Class rdf:ID="ClassOfAbstractObject"/> > </rdf:RDF> > ============ > > Loaded in RAP gives 3 triples: > ============ > 1. > Resource: http://www.15926.org/2006/02/onnopaap1#AbstractObject > RDF Node: rdf:type > RDF Node: owl:Class > 2. > Resource: http://www.15926.org/2006/02/onnopaap1#AbstractObject > RDF Node: rdf:type > Resource: http://www.15926.org/2006/02/ > onnopaap1#ClassOfAbstractObject > 3. > Resource: http://www.15926.org/2006/02/ > onnopaap1#ClassOfAbstractObject > RDF Node: rdf:type > RDF Node: owl:Class > ============ > > The RAP netapi makes this out of it: > ============ > <?xml version="1.0" encoding="UTF-8" ?> > <!-- > Generated by RdfSerializer.php from RDF RAP. > # http://www.wiwiss.fu-berlin.de/suhl/bizer/rdfapi/index.html ! > --> > <rdf:RDF xml:base="http://www.15926.org/2006/02/onnopaap1#" > xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" > xmlns:owl="http://www.w3.org/2002/07/owl#" > xmlns:ns1="http://www.15926.org/2006/02/onnopaap1#"> > <owl:Class rdf:ID="AbstractObject" /> > <ns1:ClassOfAbstractObject rdf:ID="AbstractObject" /> > <owl:Class rdf:ID="ClassOfAbstractObject" /> > </rdf:RDF> > ============ > > Which gives errors in Vowlidator: > ============ > [1] WARNING - Parser Indication: http://www.15926.org/2006/02/ > onnopaap1#[15:53]: > {W105} Redefinition of ID: AbstractObject > > [2] WARNING - Parser Indication: http://www.15926.org/2006/02/ > onnopaap1#[13:37]: > {W105} Previous definition of 'AbstractObject'. > ============ > > ---------------------------------------------------------------------- > --- > Using Tomcat but need to do more? Need to support web services, > security? > Get stuff done quickly with pre-integrated technology to make your > job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache > Geronimo > http://sel.as-us.falkag.net/sel? > cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > Rdfapi-php-interest mailing list > Rdf...@li... > https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest > |
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From: Benjamin N. <bn...@ap...> - 2006-08-23 13:45:31
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On 23.08.2006 14:27:37, Richard Cyganiak wrote: >Vowlidator seems to dislike the fact that RAP uses rdf:ID twice with >the same value. That's allowed by the specs, although admittedly you >could argue that it's bad style. (And indeed it's just a warning in >Vowlidator, not an error.) AFAIK, redundant node rdf:IDs are not allowed in a shared scope/document. It's similar to the id attribute in html. It's a bug in both RAP and Vowlidator, the latter should issue an error, not a warning ;) hth, ben > >So it's not a RAP bug, but it's an indication that Vowlidator is a >bit too picky :-) > >You can safely ignore the warning. > >Yours, >Richard > > >On 23 Aug 2006, at 13:28, Onno Paap wrote: > >> Dear rdfapi-php team, >> The following examples are snippets from much larger OWL constructs. >> They have no meaning by themselves, just as illustration of the way >> the RAP netapi handles this. >> My question: does this example show an RAP bug? >> Onno Paap >> >> This piece of OWL code has no errors in Vowlidator: >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D >> <rdf:RDF >> xmlns:rdf=3D"http://www.w3.org/1999/02/22-rdf-syntax-ns#" >> xmlns:owl=3D"http://www.w3.org/2002/07/owl#" >> xml:base=3D"http://www.15926.org/2006/02/onnopaap1"> >> <owl:Class rdf:ID=3D"AbstractObject"> >> <rdf:type rdf:resource=3D"#ClassOfAbstractObject"/> >> </owl:Class> >> <owl:Class rdf:ID=3D"ClassOfAbstractObject"/> >> </rdf:RDF> >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D >> >> Loaded in RAP gives 3 triples: >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D >> 1. >> Resource: http://www.15926.org/2006/02/onnopaap1#AbstractObject >> RDF Node: rdf:type >> RDF Node: owl:Class >> 2. >> Resource: http://www.15926.org/2006/02/onnopaap1#AbstractObject >> RDF Node: rdf:type >> Resource: http://www.15926.org/2006/02/ >> onnopaap1#ClassOfAbstractObject >> 3. >> Resource: http://www.15926.org/2006/02/ >> onnopaap1#ClassOfAbstractObject >> RDF Node: rdf:type >> RDF Node: owl:Class >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D >> >> The RAP netapi makes this out of it: >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D >> <?xml version=3D"1.0" encoding=3D"UTF-8" ?> >> <!-- >> Generated by RdfSerializer.php from RDF RAP. >> # http://www.wiwiss.fu-berlin.de/suhl/bizer/rdfapi/index.html ! >> --> >> <rdf:RDF xml:base=3D"http://www.15926.org/2006/02/onnopaap1#" >> xmlns:rdf=3D"http://www.w3.org/1999/02/22-rdf-syntax-ns#" >> xmlns:owl=3D"http://www.w3.org/2002/07/owl#" >> xmlns:ns1=3D"http://www.15926.org/2006/02/onnopaap1#"> >> <owl:Class rdf:ID=3D"AbstractObject" /> >> <ns1:ClassOfAbstractObject rdf:ID=3D"AbstractObject" /> >> <owl:Class rdf:ID=3D"ClassOfAbstractObject" /> >> </rdf:RDF> >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D >> >> Which gives errors in Vowlidator: >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D >> [1] WARNING - Parser Indication: http://www.15926.org/2006/02/ >> onnopaap1#[15:53]: >> {W105} Redefinition of ID: AbstractObject >> >> [2] WARNING - Parser Indication: http://www.15926.org/2006/02/ >> onnopaap1#[13:37]: >> {W105} Previous definition of 'AbstractObject'. >> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D >> >> ---------------------------------------------------------------------- >> --- >> Using Tomcat but need to do more? Need to support web services, >> security? >> Get stuff done quickly with pre-integrated technology to make your >> job easier >> Download IBM WebSphere Application Server v.1.0.1 based on Apache >> Geronimo >> http://sel.as-us.falkag.net/sel? >> cmd=3Dlnk&kid=3D120709&bid=3D263057&dat=3D121642 >> _______________________________________________ >> Rdfapi-php-interest mailing list >> Rdf...@li... >> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest >> > > >------------------------------------------------------------------------- >Using Tomcat but need to do more? Need to support web services, security? >Get stuff done quickly with pre-integrated technology to make your job = easier >Download IBM WebSphere Application Server v.1.0.1 based on Apache = Geronimo >http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057&dat= =3D121642 >_______________________________________________ >Rdfapi-php-interest mailing list >Rdf...@li... >https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest > > |
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From: Richard C. <ri...@cy...> - 2006-08-23 15:03:01
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You are right Benjamin, and I was wrong. The spec says that the rdf:ID must indeed be unique. Apologies for spreading misinformation ... (The full rule is: The same combination of rdf:ID and xml:base must never occur twice in a document, taking into account that xml:base is inherited to XML child elements.) So it's indeed a RAP bug. Richard On 23 Aug 2006, at 15:46, Benjamin Nowack wrote: > On 23.08.2006 14:27:37, Richard Cyganiak wrote: >> Vowlidator seems to dislike the fact that RAP uses rdf:ID twice with >> the same value. That's allowed by the specs, although admittedly you >> could argue that it's bad style. (And indeed it's just a warning in >> Vowlidator, not an error.) > AFAIK, redundant node rdf:IDs are not allowed in a shared > scope/document. It's similar to the id attribute in html. > It's a bug in both RAP and Vowlidator, the latter should > issue an error, not a warning ;) > > hth, > ben > >> >> So it's not a RAP bug, but it's an indication that Vowlidator is a >> bit too picky :-) >> >> You can safely ignore the warning. >> >> Yours, >> Richard >> >> >> On 23 Aug 2006, at 13:28, Onno Paap wrote: >> >>> Dear rdfapi-php team, >>> The following examples are snippets from much larger OWL constructs. >>> They have no meaning by themselves, just as illustration of the way >>> the RAP netapi handles this. >>> My question: does this example show an RAP bug? >>> Onno Paap >>> >>> This piece of OWL code has no errors in Vowlidator: >>> ============ >>> <rdf:RDF >>> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" >>> xmlns:owl="http://www.w3.org/2002/07/owl#" >>> xml:base="http://www.15926.org/2006/02/onnopaap1"> >>> <owl:Class rdf:ID="AbstractObject"> >>> <rdf:type rdf:resource="#ClassOfAbstractObject"/> >>> </owl:Class> >>> <owl:Class rdf:ID="ClassOfAbstractObject"/> >>> </rdf:RDF> >>> ============ >>> >>> Loaded in RAP gives 3 triples: >>> ============ >>> 1. >>> Resource: http://www.15926.org/2006/02/onnopaap1#AbstractObject >>> RDF Node: rdf:type >>> RDF Node: owl:Class >>> 2. >>> Resource: http://www.15926.org/2006/02/onnopaap1#AbstractObject >>> RDF Node: rdf:type >>> Resource: http://www.15926.org/2006/02/ >>> onnopaap1#ClassOfAbstractObject >>> 3. >>> Resource: http://www.15926.org/2006/02/ >>> onnopaap1#ClassOfAbstractObject >>> RDF Node: rdf:type >>> RDF Node: owl:Class >>> ============ >>> >>> The RAP netapi makes this out of it: >>> ============ >>> <?xml version="1.0" encoding="UTF-8" ?> >>> <!-- >>> Generated by RdfSerializer.php from RDF RAP. >>> # http://www.wiwiss.fu-berlin.de/suhl/bizer/rdfapi/index.html ! >>> --> >>> <rdf:RDF xml:base="http://www.15926.org/2006/02/onnopaap1#" >>> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" >>> xmlns:owl="http://www.w3.org/2002/07/owl#" >>> xmlns:ns1="http://www.15926.org/2006/02/onnopaap1#"> >>> <owl:Class rdf:ID="AbstractObject" /> >>> <ns1:ClassOfAbstractObject rdf:ID="AbstractObject" /> >>> <owl:Class rdf:ID="ClassOfAbstractObject" /> >>> </rdf:RDF> >>> ============ >>> >>> Which gives errors in Vowlidator: >>> ============ >>> [1] WARNING - Parser Indication: http://www.15926.org/2006/02/ >>> onnopaap1#[15:53]: >>> {W105} Redefinition of ID: AbstractObject >>> >>> [2] WARNING - Parser Indication: http://www.15926.org/2006/02/ >>> onnopaap1#[13:37]: >>> {W105} Previous definition of 'AbstractObject'. >>> ============ >>> >>> -------------------------------------------------------------------- >>> -- >>> --- >>> Using Tomcat but need to do more? Need to support web services, >>> security? >>> Get stuff done quickly with pre-integrated technology to make your >>> job easier >>> Download IBM WebSphere Application Server v.1.0.1 based on Apache >>> Geronimo >>> http://sel.as-us.falkag.net/sel? >>> cmd=lnk&kid=120709&bid=263057&dat=121642 >>> _______________________________________________ >>> Rdfapi-php-interest mailing list >>> Rdf...@li... >>> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest >>> >> >> >> --------------------------------------------------------------------- >> ---- >> Using Tomcat but need to do more? Need to support web services, >> security? >> Get stuff done quickly with pre-integrated technology to make your >> job easier >> Download IBM WebSphere Application Server v.1.0.1 based on Apache >> Geronimo >> http://sel.as-us.falkag.net/sel? >> cmd=lnk&kid=120709&bid=263057&dat=121642 >> _______________________________________________ >> Rdfapi-php-interest mailing list >> Rdf...@li... >> https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest >> >> > > > ---------------------------------------------------------------------- > --- > Using Tomcat but need to do more? Need to support web services, > security? > Get stuff done quickly with pre-integrated technology to make your > job easier > Download IBM WebSphere Application Server v.1.0.1 based on Apache > Geronimo > http://sel.as-us.falkag.net/sel? > cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > Rdfapi-php-interest mailing list > Rdf...@li... > https://lists.sourceforge.net/lists/listinfo/rdfapi-php-interest > |
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