public void deleteInstance(String yourClass, String yourInstance) {
    // 查找属性url
    String sparqlClass =
        "SELECT ?class WHERE{?class <http://www.w3.org/2000/01/rdf-schema#label> \""
            + yourClass
            + "\"@zh.}";
    ResultSet resultsClass = Result(sparqlClass);
    QuerySolution solutionClass = null;
    while (resultsClass.hasNext()) solutionClass = resultsClass.next();

    // 删除实例父类
    String sparqlDeleteInstance =
        "delete data{<http://www.semanticweb.org/administrator/ontologies/2015/6/untitled-ontology-31#'"
            + yourInstance
            + "'@zh> <"
            + RDF.type
            + "> <"
            + solutionClass.get("?class")
            + ">}";
    UpdateRequest updateInstance = UpdateFactory.create(sparqlDeleteInstance);
    UpdateProcessor qexecInstance =
        UpdateExecutionFactory.createRemote(updateInstance, UPDATE_SERVER);
    qexecInstance.execute();

    System.out.println("删除实例父类成功!");

    // 删除实例Label
    String sparqlDeleteInstanceLabel =
        "delete data{<http://www.semanticweb.org/administrator/ontologies/2015/6/untitled-ontology-31#'"
            + yourInstance
            + "'@zh>"
            + "<http://www.w3.org/2000/01/rdf-schema#label> \""
            + yourInstance
            + "\"@zh.}";
    UpdateRequest updateInstanceLabel = UpdateFactory.create(sparqlDeleteInstanceLabel);
    UpdateProcessor qexecInstanceLabel =
        UpdateExecutionFactory.createRemote(updateInstanceLabel, UPDATE_SERVER);
    qexecInstanceLabel.execute();

    System.out.println("删除实例Label成功!");
  }
  public void deleteProperty(String yourInstance, String yourProperty) {

    // 查找属性URI
    String sparqlProperty =
        "SELECT ?property WHERE{?property <http://www.w3.org/2000/01/rdf-schema#label> '"
            + yourProperty
            + "'@zh.}";
    ResultSet resultsProperty = Result(sparqlProperty);
    QuerySolution solutionProperty = null;
    while (resultsProperty.hasNext()) solutionProperty = resultsProperty.next();
    // System.out.println(sparqlProperty);
    // System.out.println(solutionProperty.get("?property"));

    // 查找属性值
    String sparqlPropertyValue =
        "SELECT ?propertyValue WHERE{<http://www.semanticweb.org/administrator/ontologies/2015/6/untitled-ontology-31#'"
            + yourInstance
            + "'@zh> <"
            + solutionProperty.get("?property")
            + "> "
            + "?propertyValue}";
    ResultSet resultsPropertyValue = Result(sparqlPropertyValue);
    QuerySolution solutionPropertyValue = null;
    while (resultsPropertyValue.hasNext()) solutionPropertyValue = resultsPropertyValue.next();
    // System.out.println(sparqlPropertyValue);
    // System.out.println(solutionPropertyValue.get("?propertyValue"));

    String string1 = solutionPropertyValue.toString();
    int i = string1.length();
    i = i - 2;
    String string2 = (String) string1.subSequence(19, i);
    System.out.println(string2);

    // 删除实例属性
    String sparqlDeleteProperty =
        "delete data{<http://www.semanticweb.org/administrator/ontologies/2015/6/untitled-ontology-31#'"
            + yourInstance
            + "'@zh> <"
            + solutionProperty.get("?property")
            + "> "
            + string2
            + "}";
    // System.out.println(sparqlDeleteProperty);

    UpdateRequest updateProperty = UpdateFactory.create(sparqlDeleteProperty);
    UpdateProcessor qexecProperty =
        UpdateExecutionFactory.createRemote(updateProperty, UPDATE_SERVER);
    qexecProperty.execute();
  }
示例#3
0
 private void execOne(String updateString) {
   UpdateRequest req = UpdateFactory.create(updateString, updateSyntax);
   // req.output(IndentedWriter.stderr) ;
   System.out.print(req);
 }