本文整理了Java中org.openrdf.model.Graph类的一些代码示例，展示了Graph类的具体用法。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。Graph类的具体详情如下：
包路径：org.openrdf.model.Graph
类名称：Graph

Graph介绍

[英]An RDF graph, represented as a collection of Statements.
[中]一种RDF图，表示为一组语句。

代码示例

代码示例来源：origin: com.blazegraph/bigdata-core

/**
 * Describe the service end point(s).
 * 
 * @see #endpoint
 */
protected void describeServiceEndpoints() {
  for (String uri : serviceURI) {
    g.add(aService, SD.endpoint, g.getValueFactory().createURI(uri));
  }
}

代码示例来源：origin: it.tidalwave.bluebill/it-tidalwave-android-org-openrdf-sesame-model

/**
 * Adds the specified statement and makes sure that no other statements are
 * present in the Graph with the same subject and predicate. When contexts
 * are specified, the (subj, pred) pair will occur exactly once in each
 * context, else the (subj, pred) pair will occur exactly once in the entire
 * Graph.
 */
public static void setUniqueObject(Graph graph, Resource subj, URI pred, Value obj, Resource... contexts) {
  Iterator<Statement> iter = graph.match(subj, pred, null, contexts);
  while (iter.hasNext()) {
    iter.next();
    iter.remove();
  }
  graph.add(subj, pred, obj, contexts);
}

代码示例来源：origin: org.openrdf.sesame/sesame-rio-api

@Override
public void handleStatement(Statement st)
  throws RDFHandlerException
{
  synchronized (bufferLock) {
    bufferedStatements.add(st);
    contexts.add(st.getContext());
    if (bufferedStatements.size() >= this.bufferSize) {
      processBuffer();
    }
  }
}

代码示例来源：origin: blazegraph/database

/**
 * Describe the supported Query Languages
 */
protected void describeLanguages() {
  g.add(aService, SD.supportedLanguage, SD.SPARQL10Query);
  
  g.add(aService, SD.supportedLanguage, SD.SPARQL11Query);
  g.add(aService, SD.supportedLanguage, SD.SPARQL11Update);
}

代码示例来源：origin: blazegraph/database

final Literal o = getVeryLargeLiteral();
final Statement stmt = new StatementImpl(s, p, o);
g.add(stmt);
assertEquals(1, g2.size());
assertTrue(g2.match(s, p, o).hasNext());

代码示例来源：origin: apache/attic-polygene-java

public SerializerContext( Graph graph )
{
  this.valueFactory = graph.getValueFactory();
  this.graph = graph;
}

代码示例来源：origin: it.tidalwave.bluebill/it-tidalwave-android-org-openrdf-sesame-model

/**
 * Gets the subject of the statements with the specified predicate, object
 * and (optionally) contexts from the supplied graph. Calling this method is
 * equivalent to calling <tt>graph.match(null, pred, obj, contexts)</tt> and
 * extracting the subjects of the matching statements from the returned
 * iterator. See {@link Graph#match(Resource, URI, Value, Resource[])} for a
 * description of the parameter values.
 */
public static Iterator<Resource> getSubjectIterator(Graph graph, URI pred, Value obj, Resource... contexts)
{
  Iterator<Statement> iter = graph.match(null, pred, obj, contexts);
  return new ConvertingIterator<Statement, Resource>(iter) {
    @Override
    protected Resource convert(Statement st)
      throws RuntimeException
    {
      return st.getSubject();
    }
  };
}

代码示例来源：origin: org.openrdf/sesame

ValueFactory factory = graph.getValueFactory();
  StatementIterator sti = graph.getStatements(null,resRdfType,resUser);
  while ( sti.hasNext() ) {
    Resource resCUser = sti.next().getSubject();
    int id = Integer.parseInt(
        graph.getStatements(resCUser,proId,null).next().getObject().toString());
    User user = new UserImpl(id,"","","");
    StatementIterator rui = graph.getStatements(resCUser,proHasRule,null);
    Set rulzSet = new HashSet();
    while (rui.hasNext()){
      if ( null == rule ) {
        rule = new RuleImpl(
            Integer.parseInt(graph.getStatements(rul,proId,null)
            .next().getObject().toString())
            ,"","");
    = graph.getStatements(resCUser,proHasRole,null);
    Set rolzSet = new HashSet();
    while (roi.hasNext()){
      if ( null == role ) {
        role = new RoleImpl(
            Integer.parseInt(graph.getStatements(rol,proId,null).next().
            getObject().toString())
            ,"","");

代码示例来源：origin: org.openrdf.sesame/sesame-rio-api

Iterator<Statement> typeStatements = bufferedStatements.match(subject, RDF.TYPE, null, context);
    while (typeStatements.hasNext()) {
      Statement typeStatement = typeStatements.next();
    Iterator<Statement> subjectStatements = bufferedStatements.match(subject, null, null, context);
    while (subjectStatements.hasNext()) {
      Statement subjectStatement = subjectStatements.next();
      IRI predicate = subjectStatement.getPredicate();
      if (!processedPredicates.contains(predicate)) {
        Iterator<Statement> toWrite = bufferedStatements.match(subject, predicate, null, context);
        while (toWrite.hasNext()) {
          Statement toWriteSt = toWrite.next();
bufferedStatements.clear();
contexts.clear();

代码示例来源：origin: blazegraph/database

/**
 * Compare two graphs for equality.
 * <p>
 * Note: This is not very efficient if the {@link Graph} implementations are
 * not indexed.
 * <p>
 * Note: This does not handle equality testing with blank nodes (it does not
 * test for isomorphic graphs).
 * 
 * @param expected
 * @param actual
 */
static protected void assertSameGraph(final Graph expected, final Graph actual) {
  for (Statement s : expected) {
   if (!actual.contains(s))
     fail("Expecting: " + s);
  }
   assertEquals("size", expected.size(), actual.size());
 }

代码示例来源：origin: it.unibz.inf.ontop/ontop-obdalib-r2rml

/**
 * call this method if you need the RDF Graph
 * that represents the R2RML mappings
 * @return an RDF Graph
 */
@Deprecated
public Graph getGraph() {
  OBDAMappingTransformer transformer = new OBDAMappingTransformer();
  transformer.setOntology(ontology);
  List<Statement> statements = new ArrayList<Statement>();
  for (OBDAMappingAxiom axiom: this.mappings) {
    List<Statement> statements2 = transformer.getStatements(axiom,prefixmng);
    statements.addAll(statements2);
  }
  @SuppressWarnings("deprecation")
  Graph g = new GraphImpl();
  g.addAll(statements);
  return g;
}

代码示例来源：origin: com.blazegraph/bigdata-core

case DESCRIBE:
case CONSTRUCT:
  nresults = buildGraph(conn).size();
  break;
case ASK: // I think that there are some alternative mime types for ask...

代码示例来源：origin: org.openrdf.sesame/sesame-query

@Override
public void handleStatement(Statement st)
  throws RDFHandlerException
{
  graph.add(st);
}

代码示例来源：origin: blazegraph/database

final Literal o = getVeryLargeLiteral();
final Statement stmt = new StatementImpl(s, p, o);
g.add(stmt);
assertEquals(1, g2.size());
assertTrue(g2.match(s, p, o).hasNext());

代码示例来源：origin: org.qi4j.library/org.qi4j.library.rdf

public SerializerContext( Graph graph )
{
  this.valueFactory = graph.getValueFactory();
  this.graph = graph;
}

代码示例来源：origin: it.tidalwave.bluebill/it-tidalwave-android-org-openrdf-sesame-model

/**
 * Gets the objects of the statements with the specified subject, predicate
 * and (optionally) contexts from the supplied graph. Calling this method is
 * equivalent to calling <tt>graph.match(subj, pred, null, contexts)</tt> and
 * extracting the objects of the matching statements from the returned
 * iterator. See {@link Graph#match(Resource, URI, Value, Resource[])} for a
 * description of the parameter values.
 */
public static Iterator<Value> getObjectIterator(Graph graph, Resource subj, URI pred, Resource... contexts)
{
  Iterator<Statement> iter = graph.match(subj, pred, null, contexts);
  return new ConvertingIterator<Statement, Value>(iter) {
    @Override
    protected Value convert(Statement st)
      throws RuntimeException
    {
      return st.getObject();
    }
  };
}

代码示例来源：origin: blazegraph/database

/**
 * Compare two graphs for equality.
 * <p>
 * Note: This is not very efficient if the {@link Graph} implementations are
 * not indexed.
 * <p>
 * Note: This does not handle equality testing with blank nodes (it does not
 * test for isomorphic graphs).
 * 
 * @param expected
 * @param actual
 */
static protected void assertSameGraph(final Graph expected, final Graph actual) {
  for (Statement s : expected) {
   if (!actual.contains(s))
     fail("Expecting: " + s);
  }
   assertEquals("size", expected.size(), actual.size());
 }

代码示例来源：origin: blazegraph/database

g.addAll(rdfHandler.getStatements());

代码示例来源：origin: blazegraph/database

case DESCRIBE:
case CONSTRUCT:
  nresults = buildGraph(conn).size();
  break;
case ASK: // I think that there are some alternative mime types for ask...

代码示例来源：origin: blazegraph/database

/**
 * Describe the service end point(s).
 * 
 * @see #endpoint
 */
protected void describeServiceEndpoints() {
  for (String uri : serviceURI) {
    g.add(aService, SD.endpoint, g.getValueFactory().createURI(uri));
  }
}