[tracker/unique-nie-url: 1/2] Ontologies: Make nie:url an inverse functional property

[Aleksander Morgado <aleksm src gnome org>]

commit e3ca98e36a7c13390477e898d5603f1e4ccfa419
Author: Aleksander Morgado <aleksander lanedo com>
Date:   Tue Feb 8 17:35:01 2011 +0100

    Ontologies: Make nie:url an inverse functional property
    
    This will avoid having two resources with same nie:url.
    
    Fixes NB#208621

 data/ontologies/30-nie.ontology |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/data/ontologies/30-nie.ontology b/data/ontologies/30-nie.ontology
index c4fc7ea..32e39af 100644
--- a/data/ontologies/30-nie.ontology
+++ b/data/ontologies/30-nie.ontology
@@ -10,7 +10,7 @@
 
 nie: a tracker:Namespace, tracker:Ontology ;
 	tracker:prefix "nie" ;
-	nao:lastModified "2011-02-03T13:00:00Z" .
+	nao:lastModified "2011-02-08T16:00:00Z" .
 
 nie:DataObject a rdfs:Class ;
 	rdfs:label "Data Object" ;
@@ -40,6 +40,7 @@ nie:title a rdf:Property ;
 	tracker:writeback true .
 
 nie:url a rdf:Property ;
+	a nrl:InverseFunctionalProperty ;
 	rdfs:label "URL" ;
 	rdfs:comment "URL pointing at the location of the resource. In cases where creating a simple file:// or http:// URL for a file is difficult (e.g. for files inside compressed archives) the applications are encouraged to use conventions defined by Apache Commons VFS Project at http://jakarta.apache.org/  commons/ vfs/ filesystems.html." ;
 	nrl:maxCardinality 1 ;