org.apache.jena.rdf.model.Model.size()方法的使用及代码示例

x33g5p2x  于2022-01-24 转载在 其他  
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本文整理了Java中org.apache.jena.rdf.model.Model.size()方法的一些代码示例，展示了Model.size()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。Model.size()方法的具体详情如下：
包路径：org.apache.jena.rdf.model.Model
类名称：Model
方法名：size

Model.size介绍

[英]size will return the number of statements in a concrete model, for a virtualized model such as one created by an inference engine, it will return an estimated lower bound for the numberof statements in the model but it is possible for a subsequent listStatements on such a model to discover more statements than size() indicated.
[中]size将返回一个具体模型中的语句数，对于一个虚拟化模型，例如一个由推理机创建的模型，它将返回模型中语句数的估计下限，但这样一个模型上的后续listStatements可能会发现比size（）指示的更多的语句。

代码示例

代码示例来源：origin: apache/jena

@Override
public long size() throws ReadDeniedException, AuthenticationRequiredException {
  checkRead();
  return holder.getBaseItem().size();
}

代码示例来源：origin: apache/jena

public void testAddDuplicateLeavesSizeSame()
{
  final Statement s = model.createStatement(S, RDF.value, "something");
  model.add(s);
  final long size = model.size();
  model.add(s);
  Assert.assertEquals(size, model.size());
}

代码示例来源：origin: apache/jena

public void testAddByModel()
{
  ModelHelper.modelAdd(model, "a P b; c P d; x Q 1; y Q 2");
  model2.add(model);
  Assert.assertEquals(model.size(), model2.size());
  assertSameStatements(model, model2);
}

代码示例来源：origin: apache/jena

public void testXMLProperty() throws IOException {
  Model m = createMemModel();
  InputStream in = new FileInputStream("testing/arp/xml-prop.rdf");
  m.read(in, "");
  assertEquals(1, m.size());
}

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

public void testXMLProperty() throws IOException {
  Model m = createMemModel();
  InputStream in = new FileInputStream("testing/arp/xml-prop.rdf");
  m.read(in, "");
  assertEquals(1, m.size());
}

代码示例来源：origin: apache/jena

public void testBulkRemoveSelf()
{
  final Model m = ModelHelper.modelWithStatements(this,
      "they sing together; he sings alone");
  m.remove(m);
  Assert.assertEquals("", 0, m.size());
}

代码示例来源：origin: apache/jena

@Test public void blankNodes2()
{
  // Duplicate.
  String s = "_:a <http://example/p> 'foo' . _:a <http://example/p> 'foo' ." ;
  StringReader r = new StringReader(s) ;
  Model m = ModelFactory.createDefaultModel() ;
  RDFDataMgr.read(m, r, null, RDFLanguages.TURTLE) ;
  assertEquals(1, m.size()) ;
}

代码示例来源：origin: apache/jena

private static void jenaread(String dataurl) {
  dataurl = filename(dataurl);
  Model m = ModelFactory.createDefaultModel();
  m.read(dataurl);
  assertTrue(m.size() != 0);
}

代码示例来源：origin: apache/jena

protected void testRemoveAll( String statements )
  {
  modelAdd( model, statements );
  assertSame( model, model.removeAll() );
  assertEquals( "model should have size 0 following removeAll(): ", 0, model.size() );
  }

代码示例来源：origin: apache/jena

@Test public void trans_02() {
  Model model = dataset.getDefaultModel() ;
  Txn.executeWrite(dataset, ()->{
    RDFDataMgr.read(model, new StringReader(data2), null, Lang.TURTLE) ;
  }) ;
  Txn.executeRead(dataset, ()->{
    assertEquals(4, model.size()) ;
  }) ;        
}

代码示例来源：origin: apache/jena

@Test public void insert_where_01() {
  Model m = ModelFactory.createDefaultModel();
  Resource anon = m.createResource();
  anon.addProperty(RDF.type, OWL.Thing);
  assertEquals(1, m.size());
  
  UpdateRequest req = UpdateFactory.create("INSERT { ?s ?p ?o } WHERE { ?o ?p ?s }");
  UpdateAction.execute(req, m);
  
  assertEquals(2, m.size());
  assertEquals(1, m.listStatements(anon, null, (RDFNode)null).toList().size());
  assertEquals(1, m.listStatements(null, null, anon).toList().size());
}

代码示例来源：origin: apache/jena

private static void read(String dataName)
  {
    try {
      StreamManager.setGlobal(streamMgrDir) ;
      Model m = ModelFactory.createDefaultModel() ;
      RDFDataMgr.read(m, dataName) ;
      assertNotEquals("Read "+dataName, 0, m.size()) ;
    } finally {
      StreamManager.setGlobal(streamMgrStd) ;
    }
  }
}

代码示例来源：origin: apache/jena

@Test public void optionalDotInBase()
{
  Model model = ModelFactory.createDefaultModel() ;
  StringReader reader = new StringReader("@base <http://example/> <x> <p> <o> .") ;
  RDFDataMgr.read(model, reader, null, RDFLanguages.TURTLE) ;
  assertEquals(1, model.size()) ;
  Resource r = model.createResource("http://example/x") ;
  Property p = model.createProperty("http://example/p") ;
  assertTrue(model.contains(r,p)) ;
}

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

public void testReadLocalNTriple() {
  model.read(getInputStream("TestReaders.nt"), "", "N-TRIPLE") ;
  Assert.assertEquals("Wrong size model", 5, model.size()) ;
  final StmtIterator iter = model.listStatements(null, null, "foo\"\\\n\r\tbar") ;
  Assert.assertTrue("No next statement found", iter.hasNext()) ;
}

代码示例来源：origin: apache/jena

@Test public void query_construct_01() {
  try ( RDFConnection conn = connection() ) {
    Txn.executeWrite(conn, ()->conn.loadDataset(DIR+"data.trig"));
    Txn.executeRead(conn, ()-> {
      Model m = conn.queryConstruct("CONSTRUCT WHERE { ?s ?p ?o }");
      assertEquals(2, m.size());
    });
  }
}

代码示例来源：origin: apache/jena

@Test public void special5()
{
  Dataset ds = dataset() ;
  //load1(ds.getDefaultModel()) ;
  load1(ds.getNamedModel("http://example/graph1")) ;  // Same triples, different graph
  load1(ds.getNamedModel("http://example/graph2")) ;
  
  Model m = ds.getNamedModel(unionGraph) ;
  assertEquals(2, m.size()) ;
}

代码示例来源：origin: apache/jena

@Test public void special5()
{
  Dataset ds = create() ;
  //load1(ds.getDefaultModel()) ;
  load1(ds.getNamedModel("http://example/graph1")) ;  // Same triples, different graph
  load1(ds.getNamedModel("http://example/graph2")) ;
  
  Model m = ds.getNamedModel(unionGraph) ;
  assertEquals(2, m.size()) ;
}

代码示例来源：origin: apache/jena

@Test
public void nt_model_1() {
  Model m1 = parseToModel("<x> <p> \"abc-\\u00E9\". ");
  assertEquals(1, m1.size());
  Model m2 = parseToModel("<x> <p> \"abc-\\u00E9\". ");
  assertTrue(m1.isIsomorphicWith(m2));
  Graph g1 = SSE.parseGraph("(graph (triple <x> <p> \"abc-é\"))");
  assertTrue(g1.isIsomorphicWith(m1.getGraph()));
}

代码示例来源：origin: apache/jena

@Test public void testInitialBindingsConstruct2()
{
  try(QueryExecution qExec = makeQExec("CONSTRUCT { ?s ?p ?o } WHERE { ?s ?p ?o }")) {
    QuerySolutionMap init = new QuerySolutionMap() ;
    init.add("o", m.createLiteral("x1"));
    
    qExec.setInitialBinding(init) ;
    Model r = qExec.execConstruct() ;
  
    assertTrue("Empty model", r.size() > 0 ) ;
  
    Property p1 = m.createProperty(ns+"p1") ;
  
    assertTrue("Empty model", r.contains(null, p1, init.get("x1"))) ; 
  }
}

代码示例来源：origin: apache/jena

@Test public void testInitialBindingsConstruct1()
{
  try(QueryExecution qExec = makeQExec("CONSTRUCT {?s ?p ?z} {?s ?p 'x1'}")) {
    QuerySolutionMap init = new QuerySolutionMap() ;
    init.add("z", m.createLiteral("zzz"));
    
    qExec.setInitialBinding(init) ;
    Model r = qExec.execConstruct() ;
  
    assertTrue("Empty model", r.size() > 0 ) ;
  
    Property p1 = m.createProperty(ns+"p1") ;
  
    assertTrue("Empty model", r.contains(null,p1, init.get("z"))) ; 
  }
}

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