Examples of org.openrdf.query.algebra.StatementPattern

org.openrdf.query.algebra.StatementPattern
A tuple expression that matches a statement pattern against an RDF graph. Statement patterns can be targeted at one of three context scopes: all contexts, null context only, or named contexts only.

  public void addRequiredTE(TupleExpr te) {
    requiredTEs.add(te);
  }


  public void addRequiredSP(Var subjVar, Var predVar, Var objVar) {
    addRequiredTE(new StatementPattern(spScope, subjVar, predVar, objVar, contextVar));
  }

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    // Create a graph query that produces the statements that have the
    // requests resources as subject or object
    Var subjVar = createAnonVar("-descr-subj");
    Var predVar = createAnonVar("-descr-pred");
    Var objVar = createAnonVar("-descr-obj");
    StatementPattern sp = new StatementPattern(subjVar, predVar, objVar);


    if (result == null) {
      result = sp;
    }
    else {

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