org.apache.jena.query.ResultSet.getRowNumber()方法的使用及代码示例

x33g5p2x  于2022-01-28 转载在 其他  
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本文整理了Java中org.apache.jena.query.ResultSet.getRowNumber方法的一些代码示例，展示了ResultSet.getRowNumber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。ResultSet.getRowNumber方法的具体详情如下：
包路径：org.apache.jena.query.ResultSet
类名称：ResultSet
方法名：getRowNumber

ResultSet.getRowNumber介绍

[英]Return the "row" number for the current iterator item
[中]返回当前迭代器项的“行”号

代码示例

代码示例来源：origin: SmartDataAnalytics/jena-sparql-api

@Override
public int getRowNumber() {
  return decoratee.getRowNumber();
}

代码示例来源：origin: apache/jena

@Override
public int getRowNumber() {
  // Calculate row number based on whether we have peeked
  return this.hasPeeked() ? this.results.getRowNumber() - 1 : this.results.getRowNumber();
}

代码示例来源：origin: apache/jena

private boolean hasPeeked() {
  int diff = this.results.getRowNumber() - this.rowNumber;
  if (diff == 0) {
    // If no difference we have not peeked
    return false;
  } else if (diff == 1 && this.peeked != null) {
    // If difference is one then we have peeked
    return true;
  } else if (diff >= 1) {
    // If difference between what we think the row number is and that of
    // the underlying result set is > 1 then someone has moved positions
    // in the underlying result set independently
    // Sync up with current position and report false
    if (warnOnSyncErrors)
      LOGGER.warn("Underlying result set was moved forward " + (diff - 1)
          + " result(s), this result set was synced back up but some results have been missed");
    this.rowNumber = this.results.getRowNumber();
    this.peeked = null;
    return false;
  } else {
    // If difference is negative then someone has reset the underlying
    // result set so we are completely out of sync, syncing back up at
    // this point would be illegal since we have gone backwards in the
    // stream
    throw new IllegalStateException(
        "Underlying result set position has moved backwards, this result set is no longer usable");
  }
}

代码示例来源：origin: apache/jena

@Override
public int getRowNumber() {
  check() ;
  return other.getRowNumber() ;
}

代码示例来源：origin: apache/jena

@Override
public int getRowNumber() {
  return get().getRowNumber() ;
}

代码示例来源：origin: SmartDataAnalytics/jena-sparql-api

public ResultSetLimited(ResultSet decoratee, long limit) {
  super(decoratee, decoratee.hasNext());
  offset = decoratee.getRowNumber();
  this.limit = limit;
}

代码示例来源：origin: SmartDataAnalytics/jena-sparql-api

@Override
  protected boolean checkClose() {

    long rowNumber = decoratee.getRowNumber();
    long pos = rowNumber - offset;

    if(pos >= limit) {
      try {
        close();
      } catch(Exception e) {
        // TODO Throwing an exception here might be unsafe
        throw new RuntimeException(e);
      }
    }

    boolean result = super.checkClose();
    return result;
  }
}

代码示例来源：origin: SmartDataAnalytics/DL-Learner

OWLClass candidate = df.getOWLClass(IRI.create(qs.getResource("cls_other").getURI()));
logger.debug("Analyzing candidate class " + candidate.toStringID());
progressMonitor.learningProgressChanged(axiomType, rs.getRowNumber(), size);

代码示例来源：origin: Galigator/openllet

@Test
public void testDAWG4()
{
  final Model model = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
  model.read("file:test/data/sparql-dawg-tests/data-r2/optional-filter/data-1.ttl", "N3");
  final Query query = QueryFactory.read("file:test/data/sparql-dawg-tests/data-r2/optional-filter/expr-5.rq");
  final QueryExecution qe = SparqlDLExecutionFactory.create(query, model);
  final ResultSet rs = qe.execSelect();
  ResultSetFormatter.consume(rs);
  assertEquals(3, rs.getRowNumber());
}

代码示例来源：origin: Galigator/openllet

@Test
public void testDAWG2()
{
  // Query PREFIX : <http://example/> SELECT * { ?s ?p ?o }
  // The same as testDAWG3 but here we handle the variable SPO pattern
  // with the SPARQL-DL engine, i.e. we fall back to ARQ as the SPARQL-DL
  // engine cannot handle it. The result set size is 20 because the
  // PelletInfGraph contains all inferred triples.
  final OntModel model = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
  model.read("file:test/data/sparql-dawg-tests/data-r2/graph/data-g1.ttl", "N3");
  final Query query = QueryFactory.read("file:test/data/sparql-dawg-tests/data-r2/graph/graph-01.rq");
  final QueryExecution qe = SparqlDLExecutionFactory.create(query, model);
  final ResultSet rs = qe.execSelect();
  ResultSetFormatter.consume(rs);
  assertEquals(model.listStatements().toList().size(), rs.getRowNumber());
}

代码示例来源：origin: Galigator/openllet

@Test
public void testDAWG1()
{
  final OntModel model = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
  model.read("file:test/data/sparql-dawg-tests/data-r2/basic/data-1.ttl", "N3");
  final Query query = QueryFactory.read("file:test/data/sparql-dawg-tests/data-r2/basic/base-prefix-1.rq");
  final QueryExecution qe = SparqlDLExecutionFactory.create(query, model);
  final ResultSet rs = qe.execSelect();
  //ResultSetFormatter.out( rs );
  ResultSetFormatter.consume(rs);
  // Type, sameAs, one entry for each property assertion
  assertEquals(1 + 1 + 2, rs.getRowNumber());
}

代码示例来源：origin: Galigator/openllet

@Test
public void testDAWG3()
{
  // Query PREFIX : <http://example/> SELECT * { ?s ?p ?o }
  // The same as testDAWG2 but this time we don't handle the variable SPO
  // pattern, i.e. we handle the pattern as a property value
  final OntModel model = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
  model.read("file:test/data/sparql-dawg-tests/data-r2/graph/data-g1.ttl", "N3");
  final Query query = QueryFactory.read("file:test/data/sparql-dawg-tests/data-r2/graph/graph-01.rq");
  final QueryExecution qe = SparqlDLExecutionFactory.create(query, DatasetFactory.create(model), null, QueryEngineType.MIXED, false);
  final ResultSet rs = qe.execSelect();
  ResultSetFormatter.consume(rs);
  assertEquals(2, rs.getRowNumber());
}

代码示例来源：origin: Galigator/openllet

@Test
public void testVariableSPO1()
{
  // Handle variable SPO pattern. This query is executed by ARQ (fall back
  // from SPARQL-DL)
  final String q = "SELECT * WHERE { ?s ?p ?o }";
  final Resource s = ResourceFactory.createResource(NS + "i");
  final Property p = RDF.type;
  final Resource o = ResourceFactory.createResource(NS + "C");
  final Model model = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
  model.add(s, p, o);
  final Query query = QueryFactory.create(q);
  final QueryExecution qe = SparqlDLExecutionFactory.create(query, model);
  final ResultSet rs = qe.execSelect();
  ResultSetFormatter.consume(rs);
  assertEquals(model.listStatements().toList().size(), rs.getRowNumber());
}

代码示例来源：origin: Galigator/openllet

@Test
public void testVariableSPO2()
{
  // Handle variable SPO pattern. This query is executed by ARQ (fall back
  // from SPARQL-DL)
  final String q = "SELECT * WHERE { ?s ?p ?o }";
  final Resource s = ResourceFactory.createResource(NS + "i");
  final Property p = ResourceFactory.createProperty(NS + "p");
  final Resource o = ResourceFactory.createResource(NS + "C");
  final Model model = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
  model.add(s, p, o);
  final Query query = QueryFactory.create(q);
  final QueryExecution qe = SparqlDLExecutionFactory.create(query, model);
  final ResultSet rs = qe.execSelect();
  ResultSetFormatter.consume(rs);
  assertEquals(model.listStatements().toList().size(), rs.getRowNumber());
}

代码示例来源：origin: Galigator/openllet

@Test
public void test421()
{
  final String aOnt = "file:" + PelletTestSuite.base + "misc/ticket-421-test-case.owl";
  final PelletReasoner aReasoner = PelletReasonerFactory.theInstance().create();
  final InfModel aModel = ModelFactory.createInfModel(aReasoner, ModelFactory.createDefaultModel());
  aModel.read(aOnt);
  final String aQuery = "PREFIX : <http://www.semanticweb.org/ontologies/2010/5/ticket-421-test-case.owl#>\n" + "PREFIX rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n" + "PREFIX owl: <http://www.w3.org/2002/07/owl#>\n" + "SELECT ?x\n" + "WHERE {\n" + "?x rdf:type :D\n" + "}";
  final QueryExecution qe = SparqlDLExecutionFactory.create(QueryFactory.create(aQuery), aModel);
  final ResultSet results = qe.execSelect();
  //		ResultSetFormatter.out(results);
  while (results.hasNext())
    results.next();
  assertTrue(results.getRowNumber() == 1);
}

代码示例来源：origin: Galigator/openllet

@Test
public void testVariableSPO3()
{
  // Handle variable SPO pattern. No fall back here
  final String q = "PREFIX owl: <http://www.w3.org/2002/07/owl#> " + "PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> " + "PREFIX ex: <" + NS + "> " + "SELECT * WHERE { ?s ?p ?o . ?p rdf:type owl:ObjectProperty }";
  final Resource s = ResourceFactory.createResource(NS + "i");
  final Property p = ResourceFactory.createProperty(NS + "p");
  final Resource o = ResourceFactory.createResource(NS + "j");
  final OntModel model = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
  model.add(s, p, o);
  model.add(p, RDF.type, OWL.ObjectProperty);
  final Query query = QueryFactory.create(q);
  final QueryExecution qe = SparqlDLExecutionFactory.create(query, model);
  final ResultSet rs = qe.execSelect();
  ResultSetFormatter.consume(rs);
  assertEquals(1, rs.getRowNumber());
}

代码示例来源：origin: Galigator/openllet

@Test
  public void test444()
  {
    final String aOnt = "file:" + PelletTestSuite.base + "misc/ticket-444-test-case.owl";

    final PelletReasoner aReasoner = PelletReasonerFactory.theInstance().create();
    final InfModel aModel = ModelFactory.createInfModel(aReasoner, ModelFactory.createDefaultModel());

    aModel.read(aOnt);
    final String aQuery = "PREFIX : <http://www.semanticweb.org/ontologies/2010/5/ticket-444-test-case.owl#>\n" + "PREFIX rdf:<http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n" + "PREFIX owl: <http://www.w3.org/2002/07/owl#>\n" + "SELECT *\n" + "WHERE {\n" + ":c ?p ?o . OPTIONAL { ?o :hasName ?n }\n" + "}";

    final QueryExecution qe = QueryExecutionFactory.create(QueryFactory.create(aQuery), aModel);

    //		QueryExecution qe = SparqlDLExecutionFactory.create( QueryFactory.create(aQuery), aModel );

    final ResultSet results = qe.execSelect();
    //		ResultSetFormatter.out(results);

    while (results.hasNext())
      results.next();

    assertTrue(results.getRowNumber() == 4);
  }
}

代码示例来源：origin: Galigator/openllet

@Test
public void testVariableSPO4()
{
  // Don't handle variable SPO pattern in the query. The result set size
  // is incomplete.
  final String q = "SELECT * WHERE { ?s ?p ?o }";
  final Resource s = ResourceFactory.createResource(NS + "i");
  final Property p = ResourceFactory.createProperty(NS + "p");
  final Resource o = ResourceFactory.createResource(NS + "C");
  final Model model = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
  model.add(s, p, o);
  final Query query = QueryFactory.create(q);
  final QueryExecution qe = SparqlDLExecutionFactory.create(query, DatasetFactory.create(model), null, QueryEngineType.PELLET, false);
  final ResultSet rs = qe.execSelect();
  ResultSetFormatter.consume(rs);
  assertEquals(1, rs.getRowNumber());
}

代码示例来源：origin: Galigator/openllet

@Test
public void testUnsupportedBuiltin()
{
  final OntModel ontmodel = ModelFactory.createOntologyModel(PelletReasonerFactory.THE_SPEC);
  final String nc = "urn:test:";
  final OntClass class1 = ontmodel.createClass(nc + "C1");
  final Individual[] inds = new Individual[6];
  for (int j = 0; j < 6; j++)
    inds[j] = ontmodel.createIndividual(nc + "Ind" + j, OWL.Thing);
  ontmodel.add(class1, RDFS.subClassOf, ontmodel.createEnumeratedClass(null, ontmodel.createList(inds)));
  final Query query = QueryFactory.create("PREFIX rdf:<" + RDF.getURI() + ">\n" + "SELECT * WHERE {\n" + "  ?x rdf:first ?y .\n" + "}");
  final QueryExecution qe = SparqlDLExecutionFactory.create(query, ontmodel);
  final ResultSet rs = qe.execSelect();
  ResultSetFormatter.consume(rs);
  assertEquals(6, rs.getRowNumber());
}

代码示例来源：origin: Galigator/openllet

@Test
public void test210()
{
  final Object prevValue = ARQ.getContext().get(ARQ.optFilterPlacement);
  try
  {
    ARQ.getContext().set(ARQ.optFilterPlacement, false);
    final String aOnt = "file:" + PelletTestSuite.base + "misc/ticket-210-test-case.owl";
    final PelletReasoner aReasoner = PelletReasonerFactory.theInstance().create();
    final InfModel aModel = ModelFactory.createInfModel(aReasoner, ModelFactory.createDefaultModel());
    aModel.read(aOnt);
    final String aQuery = "PREFIX : <http://www.semanticweb.org/ontologies/2010/5/ticket-210-test-case.owl#>\n" + "PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n" + "PREFIX owl: <http://www.w3.org/2002/07/owl#>\n" + "SELECT ?x\n" + "WHERE {\n" + "?x rdfs:subClassOf [\n" + "owl:onProperty :R ;\n" + "owl:someValuesFrom :C\n" + "]\n" + "FILTER( ?x != owl:Nothing )\n" + "}";
    final QueryExecution qe = SparqlDLExecutionFactory.create(QueryFactory.create(aQuery), aModel);
    final ResultSet results = qe.execSelect();
    while (results.hasNext())
      results.next();
    assertEquals(2, results.getRowNumber());
  }
  finally
  {
    ARQ.getContext().set(ARQ.optFilterPlacement, prevValue);
  }
}

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