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Re: Jena and DAML question

From: <tarod@softhome.net>
Date: Thu, 07 Feb 2002 11:52:38 GMT
Message-ID: <20020207115238.8951.qmail@softhome.net>
To: www-rdf-comments@w3.org

tarod@softhome.net writes:

> 
> 
>   I have a question about Jena and DAML
> 
>   I have the following xmlschema
> 
> --- c:\users\mcarrion\javaprogs\damltest\rdf\ownTypes.xsd  
> ---------------------
> <xsd:schema xmlns:xsd="http://www.w3.org/2001/10/XMLSchema">
> <xsd:simpleType name="joven">
> 	<xsd:restriction
> base="http://www.w3.org/2001/10/XMLSchema#positiveInteger">
> 		<xsd:maxInclusive value="14"/> 
> 	</xsd:restriction>
> </xsd:simpleType>
> </xsd:schema>
> --- eof -------------------------------------
> 
> ok?
>   I also have this daml model
> 
> --- c:\users\mcarrion\javaprogs\damltest\rdf\daml.rdf 
> --------------------------
> 
> <rdf:RDF
> 	xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
> 	xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
> 	xmlns:daml="http://www.daml.org/2001/03/daml+oil#"
> 	xmlns:xsd="http://www.w3.org/2001/10/XMLSchema#"
> 	xmlns:xsdOwn="file:///users/mcarrion/javaprogs/damltest/rdf/ownTypes#"
> 	xmlns:own="file:///users/mcarrion/javaprogs/damltest/rdf/ownTypes#"
> 	xmlns="file:///users/mcarrion/javaprogs/damltest/rdf/daml#"
> 	>
> 
> <daml:Ontology rdf:about="">
> 	<rdfs:comment>Example</rdfs:comment>
> 	<daml:imports rdf:resource="http://www.daml.org/2001/03/daml+oil"/>
> </daml:Ontology>
> 
> <daml:Class rdf:ID="Persona"/>
> 
> <Persona rdf:ID="p1">
> 	<name>Jose Manuel</name>
> 	<age>20</age>
> </Persona>
> 
> <Persona rdf:ID="p2">
> 	<name>Marc</name>
> 	<age>10</age>
> </Persona>
> 
> <daml:DatatypeProperty rdf:ID="age">
> 	<rdfs:domain rdf:resource="#Persona"/>
> 	<rdfs:range
> rdf:resource="http://www.w3.org/2001/10/XMLSchema#positiveInteger"/>
> </daml:DatatypeProperty>
> 
> <daml:DatatypeProperty rdf:ID="name">
> 	<rdfs:domain rdf:resource="#Persona"/>
> 	<rdfs:range rdf:resource="http://www.w3.org/2001/10/XMLSchema#String"/>
> </daml:DatatypeProperty>
> 
> <daml:Class rdf:about="#Joven">
> 	<daml:intersectionOf rdf:parseType="daml:collection">
> 		<rdfs:Class rdf:about="#Persona"/>
> 		<daml:Restriction>
> 				<daml:onProperty rdf:resource="#age"/>
> 				<daml:hasClass
> rdf:resource="file:///users/mcarrion/javaprogs/damltest/rdf/ownTypes#joven"/>
> 		</daml:Restriction>
> 	</daml:intersectionOf>
> </daml:Class>
> 
> </rdf:RDF>
> 
> --- eof -----------------------------------------------
> 
> 
>   Here I have the Person class and I want to define the Joven class (Young
> in spanish) this is the way I found in the examples.
>   
>   When running jena I have the DAMLClass Joven (j)
>   if I do j.getInstances() the iterator that I get is empty, why? should
> this call returns me the instance p2 or not? Am I doing something wrong? or
> maybe I thought that the call should return somenthing that it shouldn't...
> I don't know
>   
>   Thanks everybody for you help,
>                                 Marc

  I also found this...
  If I create the DAMLClass Persona and the DAMLClass Contrato and then I
do
<daml:Class rdf:ID="PersonasContratos">
	<daml:subClassOf>
		<daml:unionOf rdf:parseType="daml:collection">
			<daml:Class rdf:about="#Persona"/>
			<daml:Class rdf:about="#Contrato"/>
		</daml:unionOf>
	</daml:subClassOf>
</daml:Class>
  
  if I ask for personas I get all the instances, if I ask for contratos I
get all the contratos but if I ask for PersonasContratos I get nothing.

  any clue what I'm doing wrong?

  Thanks,
         Marc
Received on Thursday, 7 February 2002 06:50:25 GMT

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