Package org.wikier.trioo.jtrioo.rdf.sparql

Examples of org.wikier.trioo.jtrioo.rdf.sparql.Variable

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  private Variable x;
  private SelectQuery query;
 
  public SelectQueryGenerator() {
    this.x = new Variable("x");
    this.query = new SelectQuery();
  }
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  }
 
  public void visit(Arc arc) {
    //FIXME: single/multi literal/object
    if (arc.pointsLiteral()) {
      Variable var = new Variable(arc.getTarget());
      TriplePattern pattern = new TriplePattern(this.x, arc.getProperty(), var);
      pattern.setOptional(arc.isOptional());
      this.query.addTriplePattern(pattern);
      if (arc.getLang() != null) {
        this.query.addFilter("lang(" + var +") = \"" + arc.getLang() + "\"");
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  private Variable x;
  private ConstructQuery query;
 
  public ConstructQueryGenerator() {
    this.x = new Variable("x");
    this.query = new ConstructQuery();
  }
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    if (this.uri != null) {
      subject = new URIRef(this.uri);
    } else {
      subject = this.x;
    }
    TriplePattern pattern = new TriplePattern(subject, arc.getProperty(), new Variable(arc.getTarget()));
    pattern.setOptional(arc.isOptional());
    this.query.addTriplePattern(pattern);
  }
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  }

  @SuppressWarnings("rawtypes")
  public Object find(String uri) {
    SelectQuery q = new SelectQuery();
    Variable x = new Variable("x");
    q.addTriplePattern(new TriplePattern(x, new AbbrevRdfType(), new Variable("type")));
    q.addFilter("str(" + x.toString() +") = \"" + uri + "\"");
    QueryCodeGenerator qg = new QueryCodeGenerator();
    qg.visit(q);
    QueryExecutor qe = this.session.getQueryExecutor();
    ResultSet rs = qe.execSelect(qg.toString());
    RDFMetaResource metaResource = new RDFMetaResource(Object.class);
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Related Classes of org.wikier.trioo.jtrioo.rdf.sparql.Variable

  • org.wikier.trioo.jtrioo.generators.ConstructQueryGenerator
  • org.wikier.trioo.jtrioo.generators.SelectQueryGenerator
  • org.wikier.trioo.jtrioo.ResourceManagerImpl
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