Package org.ontoware.rdf2go.model.node

Examples of org.ontoware.rdf2go.model.node.PlainLiteral

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    // relations
    URI hasName = model.createURI("http://xmlns.com/foaf/0.1/#term_name");
    URI hasAge = model.createURI("http://example.com/relations#age");
    hasTag = model.createURI("http://example.com/relations#hasTag");
    // tags
    PlainLiteral tagJava = model.createPlainLiteral("Java");
    PlainLiteral tagPython = model.createPlainLiteral("Python");
    PlainLiteral tagComputers = model.createPlainLiteral("Computers");
   
    // adding statements
    // naming
    model.addStatement(max, hasName, "Max Völkel");
    model.addStatement(konrad, hasName, "Konrad Völkel");
    model.addStatement(guido, hasName, "Guido van Rossum");
    model.addStatement(james, hasName, "James Gosling");
   
    // a typed property, age
    model.addStatement(konrad, hasAge, model.createDatatypeLiteral("19", XSD._integer));
    model.addStatement(max, hasAge, model.createDatatypeLiteral("29", XSD._integer));
   
    // tagging
    tag(max, tagJava);
    tag(james, tagJava);
    tag(konrad, tagJava);
    tag(konrad, tagPython);
    tag(guido, tagPython);
   
    // simple SPARQL ASK
    System.out.println("Query 1:");
    // ask if max is subject or object of any statement
    String queryString = "ASK { { "+max.toSPARQL()+" ?p ?o } UNION { ?s ?p "+max.toSPARQL()+" } }";
    boolean result = model.sparqlAsk(queryString);
    if(result) {
      System.out.println(max+" is in the graph");
    }
   
    // another SPARQL ASK
    System.out.println("Query 2:");
    // ask if any resource is tagged with tagComputers
    queryString = "ASK { ?resource <"+hasTag+"> "+tagComputers.toSPARQL()+" }";
    if(!model.sparqlAsk(queryString)) {
      System.out.println("nothing is tagged with "+tagComputers);
    }

  }
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    // relations
    URI hasName = model.createURI("http://xmlns.com/foaf/0.1/#term_name");
    URI hasAge = model.createURI("http://example.com/relations#age");
    hasTag = model.createURI("http://example.com/relations#hasTag");
    // tags
    PlainLiteral tagJava = model.createPlainLiteral("Java");
    PlainLiteral tagPython = model.createPlainLiteral("Python");
   
    // adding statements
    // naming
    model.addStatement(max, hasName, "Max Völkel");
    model.addStatement(konrad, hasName, "Konrad Völkel");
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    // relations
    URI hasName = model.createURI("http://xmlns.com/foaf/0.1/#term_name");
    URI hasAge = model.createURI("http://example.com/relations#age");
    hasTag = model.createURI("http://example.com/relations#hasTag");
    // tags
    PlainLiteral tagJava = model.createPlainLiteral("Java");
    PlainLiteral tagPython = model.createPlainLiteral("Python");
   
    // adding statements
    // naming
    model.addStatement(max, hasName, "Max Völkel");
    model.addStatement(konrad, hasName, "Konrad Völkel");
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    // relations
    URI hasName = model.createURI("http://xmlns.com/foaf/0.1/#term_name");
    URI hasAge = model.createURI("http://example.com/relations#age");
    hasTag = model.createURI("http://example.com/relations#hasTag");
    // tags
    PlainLiteral tagJava = model.createPlainLiteral("Java");
    PlainLiteral tagPython = model.createPlainLiteral("Python");
    PlainLiteral tagComputers = model.createPlainLiteral("Computers");
   
    // adding statements
    // naming
    model.addStatement(max, hasName, "Max Völkel");
    model.addStatement(konrad, hasName, "Konrad Völkel");
    model.addStatement(guido, hasName, "Guido van Rossum");
    model.addStatement(james, hasName, "James Gosling");
   
    // a typed property, age
    model.addStatement(konrad, hasAge, model.createDatatypeLiteral("19", XSD._integer));
    model.addStatement(max, hasAge, model.createDatatypeLiteral("29", XSD._integer));
   
    // tagging
    tag(max, tagJava);
    tag(james, tagJava);
    tag(konrad, tagJava);
    tag(konrad, tagPython);
    tag(guido, tagPython);
   
    // simple SPARQL CONSTRUCT
    System.out.println("Query 1:");
    // suggest tagJava implies tagComputers
    String queryString = "CONSTRUCT { ?resource <"+hasTag+"> "+tagComputers.toSPARQL()+" } WHERE { ?resource <"+hasTag+"> "+tagJava.toSPARQL()+" }";
    ClosableIterable<? extends Statement> results = model.sparqlConstruct(queryString);
    for(Statement result : results) {
      System.out.println(result);
    }
   
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    URI guido = model.createURI("http://example.com/persons#guido");
    URI james = model.createURI("http://example.com/persons#james");
    // relations
    hasTag = model.createURI("http://example.com/relations#hasTag");
    // tags
    PlainLiteral tagJava = model.createPlainLiteral("Java");
    PlainLiteral tagPython = model.createPlainLiteral("Python");
   
    // adding statements
    // tagging
    tag(max, tagJava);
    tag(james, tagJava);
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    URI max = model.createURI("http://xam.de/foaf.rdf.xml#i");
    URI name = model.createURI(foafURI+"#term_name");
    URI icqId = model.createURI(foafURI+"#term_icqChatID");
    URI typeInteger = XSD._integer;
    BlankNode konrad = model.createBlankNode();
    PlainLiteral maxNameAsPlainLiteral = model.createPlainLiteral("Max Völkel");
    DatatypeLiteral number = model.createDatatypeLiteral("123", typeInteger);
    LanguageTagLiteral konradNameEnglish = model.createLanguageTagLiteral("Konrad Voelkel", "en");
    LanguageTagLiteral konradNameGerman = model.createLanguageTagLiteral("Konrad Völkel", "de");

    // adding statements to the model
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  /* subclasses should overwrite this method for better performance */
  @Override
    public PlainLiteral createPlainLiteral(String literal) {
    Model defaultModel = this.getDefaultModel();
    PlainLiteral result = defaultModel.createPlainLiteral(literal);
    defaultModel.close();
    return result;
  }
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            "en-us");
    assertEquals("literal@en-us", languageTagLiteral.toString());
  }
 
  public void testCreatePlainLiteral() {
    PlainLiteral literal = this.model.createPlainLiteral("Something");
    assertEquals("Something", literal.getValue());
  }
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    assertEquals("literal@en-us", languageTagLiteral.toString());
  }
 
  @Test
  public void testCreatePlainLiteral() {
    PlainLiteral literal = this.modelset.createPlainLiteral("Something");
    assertEquals("Something", literal.getValue());
  }
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Related Classes of org.ontoware.rdf2go.model.node.PlainLiteral

  • org.ontoware.rdf2go.model.AbstractModelSetTest
  • org.ontoware.rdf2go.model.AbstractModelTest
  • org.ontoware.rdf2go.model.impl.AbstractModelSetImpl
  • org.ontoware.semweb4j.lessons.lesson1.Step2
  • org.ontoware.semweb4j.lessons.lesson2.Step3
  • org.ontoware.semweb4j.lessons.lesson2.Step4
  • org.ontoware.semweb4j.lessons.lesson2.Step5
  • org.ontoware.semweb4j.lessons.lesson2.Step6
  • org.ontoware.semweb4j.lessons.lesson2.Step7
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