org.apache.jena.graph.Factory.createGraphMem()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中org.apache.jena.graph.Factory.createGraphMem()方法的一些代码示例，展示了Factory.createGraphMem()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Factory.createGraphMem()方法的具体详情如下：
包路径：org.apache.jena.graph.Factory
类名称：Factory
方法名：createGraphMem

Factory.createGraphMem介绍

暂无

代码示例

代码示例来源：origin: apache/jena

private static Graph make(int N) {
  Graph graph = Factory.createGraphMem();
  for ( int i = 0 ; i < N ; i++ ) {
    Triple t = GraphTestBase.triple("a P 'x"+i+"'");
    graph.add(t);
  }
  return graph ;
}

代码示例来源：origin: apache/jena

/**
 * Assemble a test infGraph from a rule source and empty data
 */
public InfGraph createInfGraph(String rules) {
  return createReasoner( Rule.parseRules(rules) ).bind(Factory.createGraphMem());
}

代码示例来源：origin: apache/jena

/**
 * Test basic rule operations - simple AND rule 
 */
public void testBaseRules1() {    
  List<Rule> rules = Rule.parseRules("[r1: (?a r ?c) <- (?a p ?b),(?b p ?c)]");        
  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)
    } );
}

代码示例来源：origin: apache/jena

/**
 * Test example hybrid rule.
 */
public void testHybrid1() {
  Graph data = Factory.createGraphMem();
  data.add(new Triple(a, p, b));
  data.add(new Triple(p, ty, s));
  String rules =
  "[r1: (?p rdf:type s) -> [r1b: (?x ?p ?y) <- (?y ?p ?x)]]";
  InfGraph infgraph = createInfGraph(rules, data);
  TestUtil.assertIteratorValues(this, 
     infgraph.find(null, p, null), new Object[] {
       new Triple(a, p, b),
       new Triple(b, p, a)
     } );
}

代码示例来源：origin: apache/jena

/**
 * Test basic builtin usage.
 */
public void testBuiltin3() {
  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)
    } );
}

代码示例来源：origin: apache/jena

/** 
 * Generic test operation.
 * @param ruleSrc the source of the rules
 * @param triples a set of triples to insert in the graph before the query
 * @param query the Triple to search for
 * @param results the array of expected results
 */
private void doTest(String ruleSrc, Triple[] triples, Triple query, Object[] results) {
  List<Rule> rules = Rule.parseRules(ruleSrc);
  Graph data = Factory.createGraphMem();
  for ( Triple triple : triples )
  {
    data.add( triple );
  }
  InfGraph infgraph =  makeInfGraph(rules, data);
  TestUtil.assertIteratorValues(this, infgraph.find(query), results); 
}

代码示例来源：origin: org.apache.jena/jena-core

/**
 * Test basic rule operations - simple AND rule 
 */
public void testBaseRules1() {    
  List<Rule> rules = Rule.parseRules("[r1: (?a r ?c) <- (?a p ?b),(?b p ?c)]");        
  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)
    } );
}

代码示例来源：origin: org.apache.jena/jena-core

/**
 * Test example hybrid rule.
 */
public void testHybrid1() {
  Graph data = Factory.createGraphMem();
  data.add(new Triple(a, p, b));
  data.add(new Triple(p, ty, s));
  String rules =
  "[r1: (?p rdf:type s) -> [r1b: (?x ?p ?y) <- (?y ?p ?x)]]";
  InfGraph infgraph = createInfGraph(rules, data);
  TestUtil.assertIteratorValues(this, 
     infgraph.find(null, p, null), new Object[] {
       new Triple(a, p, b),
       new Triple(b, p, a)
     } );
}

代码示例来源：origin: org.apache.jena/jena-core

/**
 * Test basic builtin usage.
 */
public void testBuiltin3() {
  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)
    } );
}

代码示例来源：origin: org.apache.jena/jena-core

/** 
 * Generic test operation.
 * @param ruleSrc the source of the rules
 * @param triples a set of triples to insert in the graph before the query
 * @param query the Triple to search for
 * @param results the array of expected results
 */
private void doTest(String ruleSrc, Triple[] triples, Triple query, Object[] results) {
  List<Rule> rules = Rule.parseRules(ruleSrc);
  Graph data = Factory.createGraphMem();
  for ( Triple triple : triples )
  {
    data.add( triple );
  }
  InfGraph infgraph =  makeInfGraph(rules, data);
  TestUtil.assertIteratorValues(this, infgraph.find(query), results); 
}

代码示例来源：origin: org.apache.jena/jena-core

private static Graph make(int N) {
  Graph graph = Factory.createGraphMem();
  for ( int i = 0 ; i < N ; i++ ) {
    Triple t = GraphTestBase.triple("a P 'x"+i+"'");
    graph.add(t);
  }
  return graph ;
}

代码示例来源：origin: org.apache.jena/jena-core

/**
 * Assemble a test infGraph from a rule source and empty data
 */
public InfGraph createInfGraph(String rules) {
  return createReasoner( Rule.parseRules(rules) ).bind(Factory.createGraphMem());
}

代码示例来源：origin: apache/jena

/**
 * Test size bug, used to blow up if size was called before any queries.
 */
public void testSize() {
  String rules = "[rule1: (?x p ?y) -> (?x q ?y)]";
  List<Rule> ruleList = Rule.parseRules(rules);
  Graph data = Factory.createGraphMem();
  data.add(new Triple(n1, p, n2));
  InfGraph infgraph = new BasicForwardRuleReasoner(ruleList).bind(data);
  assertEquals(infgraph.size(), 2);
}

代码示例来源：origin: org.apache.jena/jena-core

private Node getSkolem(Node x, Node y) {
  String rules =  "[r1: (?n p ?x) (?n q ?y) makeSkolem(?s ?x ?y) -> (?n s ?s)]";
  Graph data = Factory.createGraphMem();
  data.add(new Triple(n1, p, x));
  data.add(new Triple(n1, q, y));
  InfGraph infgraph = createInfGraph(rules, data);
  return infgraph.find(n1, s, Node.ANY).next().getObject();
}

代码示例来源：origin: org.apache.jena/jena-core

/**
 * Test basic builtin usage.
 */
public void testBuiltin1() {
  Graph data = Factory.createGraphMem();
  List<Rule> rules = Rule.parseRules(
    "[a1: -> (a p 2) ]" +
    "[a2: -> (a q 3) ]" +
    "[r1: (?x r ?s) <- (?x p ?y), (?x q ?z), sum(?y, ?z, ?s)]"
  );
  Reasoner reasoner =  createReasoner(rules);
  InfGraph infgraph = reasoner.bind(data);
  TestUtil.assertIteratorValues(this, 
    infgraph.find(a, r, null), 
    new Object[] {
      new Triple(a, r, Util.makeIntNode(5))
    } );
}

代码示例来源：origin: apache/jena

/** 
 * Generic test operation.
 * @param ruleSrc the source of the rules
 * @param tabled the predicates that should be tabled
 * @param triples a set of triples to insert in the graph before the query
 * @param query the Triple to search for
 * @param results the array of expected results
 */
private void doTest(String ruleSrc, Node[] tabled, Triple[] triples, Triple query, Object[] results) {
  List<Rule> rules = Rule.parseRules(ruleSrc);
  Graph data = Factory.createGraphMem();
  for ( Triple triple : triples )
  {
    data.add( triple );
  }
  InfGraph infgraph =  makeInfGraph(rules, data, tabled);
  TestUtil.assertIteratorValues(this, infgraph.find(query), results); 
}

代码示例来源：origin: apache/jena

/**
   * Perform a rule test on the raw RETE engine. This requires some fiddling
   * with dummy parent graphs.
   */
  private void doRuleTest(String rules, Triple[] adds, Triple[] expected) {
    List<Rule> ruleList = Rule.parseRules(rules);
    BasicForwardRuleInfGraph infgraph = new BasicForwardRuleInfGraph(null, new ArrayList<Rule>(), null, Factory.createGraphMem());
//        infgraph.setTraceOn(true);
    RETEEngine engine = new RETEEngine(infgraph, ruleList);
    infgraph.prepare();
    engine.init(true, new FGraph(Factory.createGraphMem()));
    for ( Triple add : adds )
    {
      engine.addTriple( add, true );
    }
    engine.runAll();
    TestUtil.assertIteratorValues(this, infgraph.find(null, null, null), expected);
  }

代码示例来源：origin: apache/jena

/**
 * Test basic rule operations - simple AND/OR with tabling.
 */
public void testBaseRules4() {    
  Graph data = Factory.createGraphMem();
  data.add(new Triple(a, r, b));
  data.add(new Triple(b, r, c));
  data.add(new Triple(b, r, b));
  data.add(new Triple(b, r, d));
  List<Rule> rules = Rule.parseRules(
          "[r1: (?x p ?y) <- (?x r ?y)]" +
          "[r2: (?x p ?z) <- (?x p ?y), (?y r ?z)]" 
          );        
  Reasoner reasoner =  createReasoner(rules);
  InfGraph infgraph = reasoner.bind(data);
  TestUtil.assertIteratorValues(this, 
    infgraph.find(a, p, null), 
    new Object[] {
      new Triple(a, p, b),
      new Triple(a, p, d),
      new Triple(a, p, c)
    } );
}

代码示例来源：origin: apache/jena

private Node getSkolem(Node x, Node y) {
  String rules =  "[r1: (?n p ?x) (?n q ?y) makeSkolem(?s ?x ?y) -> (?n s ?s)]";
  Graph data = Factory.createGraphMem();
  data.add(new Triple(n1, p, x));
  data.add(new Triple(n1, q, y));
  InfGraph infgraph = createInfGraph(rules, data);
  return infgraph.find(n1, s, Node.ANY).next().getObject();
}

代码示例来源：origin: apache/jena

/**
 * Test basic builtin usage.
 */
public void testBuiltin1() {
  Graph data = Factory.createGraphMem();
  List<Rule> rules = Rule.parseRules(
    "[a1: -> (a p 2) ]" +
    "[a2: -> (a q 3) ]" +
    "[r1: (?x r ?s) <- (?x p ?y), (?x q ?z), sum(?y, ?z, ?s)]"
  );
  Reasoner reasoner =  createReasoner(rules);
  InfGraph infgraph = reasoner.bind(data);
  TestUtil.assertIteratorValues(this, 
    infgraph.find(a, r, null), 
    new Object[] {
      new Triple(a, r, Util.makeIntNode(5))
    } );
}

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