[polari/wip/carlosg/tracker: 422/445] data: Define cardinality in several ontology properties

[Carlos Garnacho <carlosg src gnome org>]

commit be681dd748207a36bff8b5aeb2e1d80bf82510fd
Author: Carlos Garnacho <carlosg gnome org>
Date:   Sun Feb 24 22:27:49 2019 +0100

    data: Define cardinality in several ontology properties
    
    Tracker by default allows unlimited cardinality on properties.
    This is not desirable for most of the defined properties, plus
    insertions and queries are usually faster when maxCardinality=1.

 data/resources/polari.ontology | 9 +++++++++
 1 file changed, 9 insertions(+)
---
diff --git a/data/resources/polari.ontology b/data/resources/polari.ontology
index e27e6622..810cc517 100644
--- a/data/resources/polari.ontology
+++ b/data/resources/polari.ontology
@@ -3,6 +3,7 @@
 @prefix tracker: <http://www.tracker-project.org/ontologies/tracker#> .
 @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
 @prefix nao: <http://www.semanticdesktop.org/ontologies/2007/08/15/nao#> .
+@prefix nrl: <http://www.semanticdesktop.org/ontologies/2007/08/15/nrl#> .
 
 @prefix polari: <http://example.org/ns#> .
 
@@ -15,6 +16,7 @@ polari:Account a rdfs:Class ;
                rdfs:subClassOf rdfs:Resource .
 
 polari:id a rdf:Property ;
+          nrl:maxCardinality 1 ;
           rdfs:domain polari:Account ;
           rdfs:range xsd:string .
 
@@ -23,6 +25,7 @@ polari:Contact a rdfs:Class ;
                rdfs:subClassOf rdfs:Resource .
 
 polari:nick a rdf:Property ;
+            nrl:maxCardinality 1 ;
             rdfs:domain polari:Contact ;
             rdfs:range xsd:string .
 
@@ -35,6 +38,7 @@ polari:Channel a rdfs:Class ;
                rdfs:subClassOf rdfs:Resource .
 
 polari:name a rdf:Property ;
+            nrl:maxCardinality 1 ;
             rdfs:domain polari:Channel ;
             rdfs:range xsd:string .
 
@@ -51,6 +55,7 @@ polari:Conversation a rdfs:Class ;
                     rdfs:subClassOf polari:Channel .
 
 polari:target a rdf:Property ;
+            nrl:maxCardinality 1 ;
             rdfs:domain polari:Conversation ;
             rdfs:range polari:Contact .
 
@@ -59,18 +64,22 @@ polari:Message a rdfs:Class ;
                rdfs:subClassOf rdfs:Resource .
 
 polari:channel a rdf:Property ;
+               nrl:maxCardinality 1 ;
                rdfs:domain polari:Message ;
                rdfs:range polari:Channel .
 
 polari:sender a rdf:Property ;
+              nrl:maxCardinality 1 ;
               rdfs:domain polari:Message ;
               rdfs:range polari:Contact .
 
 polari:time a rdf:Property ;
+            nrl:maxCardinality 1 ;
             rdfs:domain polari:Message ;
             rdfs:range xsd:dateTime .
 
 polari:text a rdf:Property ;
+            nrl:maxCardinality 1 ;
             rdfs:domain polari:Message ;
             rdfs:range xsd:string ;
             tracker:fulltextIndexed true .