Examples of com.hp.hpl.jena.reasoner.InfGraph

com.hp.hpl.jena.reasoner.InfGraph
Extends the Graph interface to give additional means to query an inferred graph. Many entailments from the raw data are made to appear as if they are extract triples in the inferred graph and so appear through the normal Graph.find interface. However, here are two extensions required. Firstly, the ability to ask about global properties of the whole graph (e.g. consistency). Secondly, the ability to temporarily construct expressions (encoded in RDF) which form more complex queries.

        List<Rule> rules = Rule.parseRules(
            "[r1: (?x r ?y ) <- bound(?x), (?x p ?y) ]" +
            "[r2: (?x r ?y) <- unbound(?x), (?x q ?y)]"
        );
        Reasoner reasoner =  createReasoner(rules);
        InfGraph infgraph = reasoner.bind(data);
        TestUtil.assertIteratorValues(this, 
            infgraph.find(a, r, null), 
            new Object[] {
                new Triple(a, r, b)
            } );
        TestUtil.assertIteratorValues(this, 
            infgraph.find(null, r, null), 
            new Object[] {
                new Triple(a, r, c)
            } );
    }

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        Graph data = Factory.createGraphMem();
        List<Rule> rules = Rule.parseRules(
            "[r1: (a p b ) <- unbound(?x) ]"
        );
        Reasoner reasoner =  createReasoner(rules);
        InfGraph infgraph = reasoner.bind(data);
        TestUtil.assertIteratorValues(this, 
            infgraph.find(a, null, null), 
            new Object[] {
                new Triple(a, p, b)
            } );
    }

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        data.add(new Triple(a, r, b));
        List<Rule> rules = Rule.parseRules(
            "[r1: (a p b ) <- (a r b) ]"
        );
        Reasoner reasoner =  createReasoner(rules);
        InfGraph infgraph = reasoner.bind(data);
        TestUtil.assertIteratorValues(this, 
            infgraph.find(a, null, null), 
            new Object[] {
                new Triple(a, p, b),
                new Triple(a, r, b)
            } );
    }

View Full Code Here

        Graph data = Factory.createGraphMem();
        data.add(new Triple(a, p, b));
        data.add(new Triple(b, p, c));
        data.add(new Triple(b, p, d));
        Reasoner reasoner =  createReasoner(rules);
        InfGraph infgraph = reasoner.bind(data);
        TestUtil.assertIteratorValues(this, 
            infgraph.find(null, r, null), 
            new Object[] {
                new Triple(a, r, c),
                new Triple(a, r, d)
            } );
        Graph ndata = Factory.createGraphMem();
        ndata.add(new Triple(a, p, d));
        ndata.add(new Triple(d, p, b));
        infgraph.rebind(ndata);
        TestUtil.assertIteratorValues(this, 
            infgraph.find(null, r, null), 
            new Object[] {
                new Triple(a, r, b)
            } );


    }

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        List<Rule> rules = Rule.parseRules(
        "[rdfs8:  (?a rdfs:subClassOf ?b), (?b rdfs:subClassOf ?c) -> (?a rdfs:subClassOf ?c)]" + 
        "[rdfs7:  (?a rdf:type rdfs:Class) -> (?a rdfs:subClassOf ?a)]"
                        );        
        Reasoner reasoner =  createReasoner(rules);
        InfGraph infgraph = reasoner.bind(data);
        TestUtil.assertIteratorValues(this, 
            infgraph.find(null, sC, null), 
            new Object[] {
                new Triple(C1, sC, C2),
                new Triple(C1, sC, C3),
                new Triple(C1, sC, C1),
                new Triple(C2, sC, C3),

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//        "[-> (rdf:type rdfs:range rdfs:Class)]" +
        "[rdfs3:  (?x ?p ?y), (?p rdfs:range ?c) -> (?y rdf:type ?c)]" +
        "[rdfs7:  (?a rdf:type rdfs:Class) -> (?a rdfs:subClassOf ?a)]"
                        );        
        Reasoner reasoner =  createReasoner(rules);
        InfGraph infgraph = reasoner.bind(data);
        TestUtil.assertIteratorValues(this, 
            infgraph.find(a, ty, null), 
            new Object[] {
                new Triple(a, ty, C1),
                new Triple(a, ty, C2),
                new Triple(a, ty, C3)
            } );
        TestUtil.assertIteratorValues(this, 
            infgraph.find(C1, sC, a), 
            new Object[] {
            } );
    }

View Full Code Here

        List<Rule> rules = Rule.parseRules(
            "[r1: (c r ?x) <- (?x p f(?x b))]" +
            "[r2: (?y p f(a ?y)) <- (c q ?y)]"
                          );        
        Reasoner reasoner =  createReasoner(rules);
        InfGraph infgraph = reasoner.bind(data);
        TestUtil.assertIteratorValues(this, 
              infgraph.find(c, r, null), new Object[] { } );
              
        data.add(new Triple(c, q, a));
        rules = Rule.parseRules(
        "[r1: (c r ?x) <- (?x p f(?x a))]" +
        "[r2: (?y p f(a ?y)) <- (c q ?y)]"
                          );        
        reasoner =  createReasoner(rules);
        infgraph = reasoner.bind(data);
        TestUtil.assertIteratorValues(this, 
              infgraph.find(c, r, null), 
              new Object[] {
                  new Triple(c, r, a)
              } );
            
        data = Factory.createGraphMem();
        data.add(new Triple(a, q, a));
        data.add(new Triple(a, q, b));
        data.add(new Triple(a, q, c));
        data.add(new Triple(b, q, d));
        data.add(new Triple(b, q, b));
        rules = Rule.parseRules(
          "[r1: (c r ?x) <- (?x p ?x)]" +
          "[r2: (?x p ?y) <- (a q ?x), (b q ?y)]"
                          );        
        reasoner =  createReasoner(rules);
        infgraph = reasoner.bind(data);
        TestUtil.assertIteratorValues(this, 
              infgraph.find(c, r, null), 
              new Object[] {
                  new Triple(c, r, b)
              } );
              
        rules = Rule.parseRules(
          "[r1: (c r ?x) <- (?x p ?x)]" +
          "[r2: (a p ?x) <- (a q ?x)]"
                          );        
        reasoner =  createReasoner(rules);
        infgraph = reasoner.bind(data);
        TestUtil.assertIteratorValues(this, 
              infgraph.find(c, r, null), 
              new Object[] {
                  new Triple(c, r, a)
              } );
    }

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    "[restriction2: (?C owl:onProperty ?P), (?C owl:allValuesFrom ?D) -> (?C owl:equivalentClass all(?P, ?D))]" +
    "[rs2: (?D owl:equivalentClass all(?P,?C)), (?X rdf:type ?D) -> (?X rdf:type all(?P,?C))]" +
    "[rp4: (?X rdf:type all(?P, ?C)), (?X ?P ?Y) -> (?Y rdf:type ?C)]"
                          );        
        Reasoner reasoner =  createReasoner(rules);
        InfGraph infgraph = reasoner.bind(data);
        TestUtil.assertIteratorValues(this, 
              infgraph.find(b, ty, c), new Object[] {
                  new Triple(b, ty, c)
              } );
    }

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        "[restrictionSubclass1: unbound(?D) (?X rdf:type ?R), isFunctor(?R) (?D owl:equivalentClass ?R) -> (?X rdf:type ?D)]" +
        "[restrictionSubclass2: bound(?R), isFunctor(?R), (?D owl:equivalentClass ?R),(?X rdf:type ?D) -> (?X rdf:type ?R)]" +
        "[restrictionSubclass2: unbound(?R), (?X rdf:type ?D), (?D owl:equivalentClass ?R) isFunctor(?R) -> (?X rdf:type ?R)]" +
                       ""  );        
        Reasoner reasoner =  createReasoner(rules);
        InfGraph infgraph = reasoner.bind(data);
        TestUtil.assertIteratorValues(this, 
              infgraph.find(a, ty, C1), new Object[] {
                  new Triple(a, ty, C1)
              } );
        TestUtil.assertIteratorValues(this, 
              infgraph.find(a, ty, c), new Object[] {
                  new Triple(a, ty, c)
              } );
    }

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        "[rdfs8:  (?a rdfs:subClassOf ?b) (?b rdfs:subClassOf ?c) -> (?a rdfs:subClassOf ?c)]" + 
        "[restrictionProc4b: bound(?Y) (?X ?P ?Y), notEqual(?P, rdf:type), (?X rdf:type all(?P, ?C)),-> (?Y rdf:type ?C)]" +
        "[restrictionProc4b: unbound(?Y), (?X rdf:type all(?P, ?C)), (?X ?P ?Y), notEqual(?P, rdf:type),-> (?Y rdf:type ?C)]" +
                       ""  );        
        Reasoner reasoner =  createReasoner(rules);
        InfGraph infgraph = reasoner.bind(data);
        TestUtil.assertIteratorValues(this, 
              infgraph.find(null, ty, c), new Object[] {
              } );
    }

View Full Code Here

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