Examples of org.openrdf.model.BNode

org.openrdf.model.BNode
A blank node (aka bnode, aka anonymous node). A blank node has an identifier to be able to compare it to other blank nodes internally. Please note that, conceptually, blank node equality can only be determined by examining the statements that refer to them.

            if( !( includeNonQueryable || associationType.queryable() ) )
            {
                continue; // Skip non-queryable
            }


            BNode collection = values.createBNode();
            graph.add( entityUri, values.createURI( associationType.qualifiedName().toURI() ), collection );
            graph.add( collection, Rdfs.TYPE, Rdfs.SEQ );


            ManyAssociationState associatedIds = entityState.manyAssociationValueOf( associationType.qualifiedName() );
            for( EntityReference associatedId : associatedIds )

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        URI predicateBoundedBy = myFactory.createURI(namespaceGml, "BoundedBy");
        URI predicateEnvelope = myFactory.createURI(namespaceGml, "Envelope");
        URI predicateSrsName = myFactory.createURI(namespaceGml, "srsName");
        URI srsNameURI = myFactory
                .createURI("http://www.opengis.net/gml/srs/epsg.xml#epsg:4326");
        BNode gmlNode = myFactory.createBNode();
        URI predicateLowerCorner = myFactory.createURI(namespaceGml,
                "lowerCorner");
        URI predicateUpperCorner = myFactory.createURI(namespaceGml,
                "upperCorner");


        Literal lowerCorner = myFactory.createLiteral(keyword.getCoordWest() + " " + keyword.getCoordSouth());
        Literal upperCorner = myFactory.createLiteral(keyword.getCoordEast() + " " + keyword.getCoordNorth());


        mySubject.addProperty(rdfType, skosClass);
        Set<Entry<String, String>> values = keyword.getValues().entrySet();
        for (Entry<String, String> entry : values) {
            String language = toiso639_1_Lang(entry.getKey());
            Value valueObj = myFactory.createLiteral(entry.getValue(), language);
            myGraph.add(mySubject, predicatePrefLabel, valueObj );
            
        }
        Set<Entry<String, String>> definitions = keyword.getDefinitions().entrySet();
        for (Entry<String, String> entry : definitions) {
            String language = toiso639_1_Lang(entry.getKey());
            Value definitionObj = myFactory.createLiteral(entry.getValue(), language);
            myGraph.add(mySubject, predicateScopeNote, definitionObj );
            
        }
        myGraph.add(mySubject, predicateBoundedBy, gmlNode);


        gmlNode.addProperty(rdfType, predicateEnvelope);
        myGraph.add(gmlNode, predicateLowerCorner, lowerCorner);
        myGraph.add(gmlNode, predicateUpperCorner, upperCorner);
        myGraph.add(gmlNode, predicateSrsName, srsNameURI);


        repository.addGraph(myGraph);

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      throws AccessDeniedException {
    StatementIterator iter = myGraph.getStatements(subject, null, null);
        while (iter.hasNext()) {
            AtomicReference<Statement> st = new AtomicReference<Statement>(iter.next());
            if (st.get().getObject() instanceof BNode) {
                BNode node = (BNode) st.get().getObject();
                repository.getGraph().remove(node, null, null);
            }
        }
        int removedItems = myGraph.remove(subject, null, null);
        if(Log.isDebugEnabled(Geonet.THESAURUS)) {

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          String namespaceGml = "http://www.opengis.net/gml#";
          URI predicateBoundedBy = myFactory.createURI(namespaceGml, "BoundedBy");
          URI predicateLowerCorner = myFactory.createURI(namespaceGml, "lowerCorner");
          URI predicateUpperCorner = myFactory.createURI(namespaceGml, "upperCorner");
          
          BNode subjectGml = null;
          iter = myGraph.getStatements(subject, predicateBoundedBy, null);
          while (iter.hasNext()) {
              AtomicReference<Statement> st = new AtomicReference<Statement>(iter.next());
              if (st.get().getObject() instanceof BNode) {
                  subjectGml = (BNode) st.get().getObject();

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      // Empty list
      read();
      return RDF.NIL;
    }
    else {
      BNode listRoot = createBNode();


      // Remember current subject and predicate
      Resource oldSubject = subject;
      URI oldPredicate = predicate;


      // generated bNode becomes subject, predicate becomes rdf:first
      subject = listRoot;
      predicate = RDF.FIRST;


      parseObject();


      BNode bNode = listRoot;


      while (skipWSC() != ')') {
        // Create another list node and link it to the previous
        BNode newNode = createBNode();
        reportStatement(bNode, RDF.REST, newNode);


        // New node becomes the current
        subject = bNode = newNode;

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  protected Resource parseImplicitBlank()
    throws IOException, RDFParseException, RDFHandlerException
  {
    verifyCharacter(read(), "[");


    BNode bNode = createBNode();


    int c = read();
    if (c != ']') {
      unread(c);

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   */
  protected BNode createBNode(String nodeID)
    throws RDFParseException
  {
    // Maybe the node ID has been used before:
    BNode result = bNodeIDMap.get(nodeID);


    if (result == null) {
      // This is a new node ID, create a new BNode object for it
      try {
        if (preserveBNodeIDs) {

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    if (value instanceof URI) {
      URI uri = (URI)value;
      xmlWriter.textElement(URI_TAG, uri.toString());
    }
    else if (value instanceof BNode) {
      BNode bNode = (BNode)value;
      xmlWriter.textElement(BNODE_TAG, bNode.getID());
    }
    else if (value instanceof Literal) {
      Literal literal = (Literal)value;
      URI datatype = literal.getDatatype();

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      throw new RepositoryConfigException("No type specified for repository implementation");
    }
  }


  public Resource export(Graph graph) {
    BNode implNode = graph.getValueFactory().createBNode();


    if (type != null) {
      graph.add(implNode, REPOSITORYTYPE, graph.getValueFactory().createLiteral(type));
    }

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  }


  public void testExpr() throws Exception {
    URI pattern = vf.createURI("http://example.org/ns#", "pattern");
    URI flags = vf.createURI("http://example.org/ns#", "flags");
    BNode bnode = vf.createBNode();
    conn.add(bnode, pattern, vf.createLiteral("@Work.example"));
    conn.add(bnode, flags, vf.createLiteral("i"));
    TupleQuery query = conn.prepareTupleQuery(QueryLanguage.SPARQL,
        queryExpr);
    TupleQueryResult result = query.evaluate();

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