GRValidator Implemented E10

Error 10

E10: Check that both validThrough and hasValidFrom exist in offerings.

Note: This validation must be done before E11

Validator Tool: Step # 17

Error Message

Both validFrom and validThrough must be specified.

Potential Problem

One offering can specify valid dates by means of gr:validFrom and gr:validThrough. Care must be taken that both values exist because one has no sense without the other.

Examples of Wrong Data

@prefix toy: <http://www.heppnetz.de/ontologies/examples/toy#> .
@prefix protege: <http://protege.stanford.edu/plugins/owl/protege#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix gr: <http://purl.org/goodrelations/v1#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xml: <http://www.w3.org/XML/1998/namespace> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
<http://www.heppnetz.de/ontologies/examples/gr> rdf:type owl:Ontology ;
	owl:imports <http://www.heppnetz.de/ontologies/examples/toy> ,
		<http://purl.org/goodrelations/v1> .
<http://www.heppnetz.de/ontologies/examples/gr#ElectronicsCom> rdf:type gr:BusinessEntity ;
	gr:legalName "Electronics.com Ltd."^^<&xsd;string> ;
	rdfs:seeAlso "" ;
	gr:offers <http://www.heppnetz.de/ontologies/examples/gr#Offering_1> .
<http://www.heppnetz.de/ontologies/examples/gr#mySony100TVSet> rdf:type gr:ActualProductOrServiceInstance ,
		<http://www.heppnetz.de/ontologies/examples/&toy;TVSet> ;
	toy:hasScreenSize <http://www.heppnetz.de/ontologies/examples/gr#QuantitativeValueFloat_1> .
<http://www.heppnetz.de/ontologies/examples/gr#Offering_1> rdf:type gr:Offering ;
	gr:hasPriceSpecification <http://www.heppnetz.de/ontologies/examples/gr#UnitPriceSpecification_1> ;
	gr:hasBusinessFunction <http://www.heppnetz.de/ontologies/examples/&gr;Sell> ;
	gr:includesObject <http://www.heppnetz.de/ontologies/examples/gr#TypeAndQuantityNode_1> ;
	gr:validThrough "2009-04-24T00:00:00+01:00"^^<&xsd;dateTime> .
<http://www.heppnetz.de/ontologies/examples/gr#QuantitativeValueFloat_1> rdf:type gr:QuantitativeValueFloat ;
	gr:hasValueFloat "30.0"^^<&xsd;float> ;
	gr:hasUnitOfMeasurement "CMT"^^<&xsd;string> .
<http://www.heppnetz.de/ontologies/examples/gr#TypeAndQuantityNode_1> rdf:type gr:TypeAndQuantityNode ;
	gr:hasUnitOfMeasurement "C62"@en ;
	gr:typeOfGood <http://www.heppnetz.de/ontologies/examples/gr#mySony100TVSet> .
<http://www.heppnetz.de/ontologies/examples/gr#UnitPriceSpecification_1> rdf:type gr:UnitPriceSpecification ;
	gr:hasCurrencyValue "200.0"^^<&xsd;float> ;
	gr:hasUnitOfMeasurement "C62"^^<&xsd;string> ;
	gr:hasCurrency "EUR"^^<&xsd;string> .

SPARQL Query

PREFIX gr:<http://purl.org/goodrelations/v1#>

SELECT ?object
WHERE {
    ?object a gr:Offering.
    OPTIONAL { ?object gr:validFrom ?from } .
    OPTIONAL { ?object gr:validThrough ?through } .
    FILTER (!bound(?through) || !bound(?from) )
}