Examples of com.hp.hpl.jena.reasoner.InfGraph.find()

com.hp.hpl.jena.reasoner.InfGraph.find()
An extension of the Graph.find interface which allows the caller to encode complex expressions in RDF and then refer to those expressions within the query triple. For example, one might encode a class expression and then ask if there are any instances of this class expression in the InfGraph. @param subject the subject Node of the query triple, may be a Node in the graph or a node in the parameter micro-graph or null @param property the property to be retrieved or null @param object the object Node of the query triple, may be a Node in the graph or a node in the parameter micro-graph. @param param a small graph encoding an expression which the subject and/orobject nodes refer.

            "[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)
            } );
    }

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        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();

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        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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        "[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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        "[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)
            } );

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                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[] {
            } );
    }


    /**

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            "[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)]"

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        "[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();

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          "[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(

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          "[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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