Examples of org.openrdf.model.Literal

org.openrdf.model.Literal
An RDF literal consisting of a label (the value) and optionally a language tag or a datatype (but not both). @author Arjohn Kampman

      throw new RDFHandlerException(e.getMessage(), e);
    }
  }


  private Binding getBinding(Resource bindingNode) {
    Literal name = (Literal)model.filter(bindingNode, VARIABLE, null).objects().iterator().next();
    Value value = model.filter(bindingNode, VALUE, null).objects().iterator().next();
    return new BindingImpl(name.getLabel(), value);
  }

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    }
    finally {
      statements.close();
    }


    Literal literal = (Literal)st.getObject();


    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream out = new ObjectOutputStream(baos);
    out.writeObject(literal);
    out.close();


    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    ObjectInputStream in = new ObjectInputStream(bais);
    Literal deserializedLiteral = (Literal)in.readObject();
    in.close();


    assertEquals(literal, deserializedLiteral);


    assertTrue(testCon.hasMatch(bob, name, literal, true));

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  {
    String optional = "{ ?s :p1 ?v1 OPTIONAL {?s :p2 ?v2 FILTER(?v1<3) } }";
    URI s = vf.createURI("urn:test:s");
    URI p1 = vf.createURI("urn:test:p1");
    URI p2 = vf.createURI("urn:test:p2");
    Literal v1 = vf.createLiteral(1);
    Literal v2 = vf.createLiteral(2);
    Literal v3 = vf.createLiteral(3);
    testCon.add(s, p1, v1);
    testCon.add(s, p2, v2);
    testCon.add(s, p1, v3);
    String qry = "PREFIX :<urn:test:> SELECT ?s ?v1 ?v2 WHERE " + optional;
    TupleQuery query = testCon.prepareTupleQuery(QueryLanguage.SPARQL, qry);

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    throws Exception
  {
    URI s = vf.createURI("urn:test:s");
    URI p1 = vf.createURI("urn:test:p1");
    URI p3 = vf.createURI("urn:test:p3");
    Literal one = vf.createLiteral(1);
    Literal three = vf.createLiteral(3);
    testCon.add(s, p1, one);
    testCon.add(s, p3, three);
    String qry = "PREFIX :<urn:test:>\nPREFIX xsd:  <http://www.w3.org/2001/XMLSchema#>\n"
        + "SELECT ?s WHERE { ?s :p1 ?one ; :p3 ?three FILTER (datatype(?one / ?three) = xsd:decimal) }";
    TupleQuery query = testCon.prepareTupleQuery(QueryLanguage.SPARQL, qry);

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      sb.append(Character.toChars('A' + (i % 26)));
    }
    String EXAMPLE_NS = "urn:test:";
    URI subj = new URIImpl(EXAMPLE_NS + "PICASSO");
    URI pred = new URIImpl(EXAMPLE_NS + "PAINTS");
    Literal obj = new LiteralImpl("guernica" + sb.toString());


    testValueRoundTrip(subj, pred, obj);
  }

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      sb.append(Character.toChars('A' + (i % 26)));
    }
    String EXAMPLE_NS = "urn:test:";
    URI subj = new URIImpl(EXAMPLE_NS + "PICASSO");
    URI pred = new URIImpl(EXAMPLE_NS + "PAINTS");
    Literal obj = new LiteralImpl("guernica" + sb.toString());


    testValueRoundTrip(subj, pred, obj);
  }

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      sb.append(Character.toChars('A' + (i % 26)));
    }
    String EXAMPLE_NS = "urn:test:";
    URI subj = new URIImpl(EXAMPLE_NS + "PICASSO");
    URI pred = new URIImpl(EXAMPLE_NS + "PAINTS");
    Literal obj = new LiteralImpl("guernica" + sb.toString(), "es");


    testValueRoundTrip(subj, pred, obj);
  }

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  public void testValueRoundTrip3()
    throws Exception
  {
    URI subj = new URIImpl(EXAMPLE_NS + PICASSO);
    URI pred = new URIImpl(EXAMPLE_NS + PAINTS);
    Literal obj = new LiteralImpl("guernica");


    testValueRoundTrip(subj, pred, obj);
  }

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  public void testValueRoundTrip4()
    throws Exception
  {
    URI subj = new URIImpl(EXAMPLE_NS + PICASSO);
    URI pred = new URIImpl(EXAMPLE_NS + PAINTS);
    Literal obj = new LiteralImpl("guernica", "es");


    testValueRoundTrip(subj, pred, obj);
  }

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  public void testValueRoundTrip5()
    throws Exception
  {
    URI subj = new URIImpl(EXAMPLE_NS + PICASSO);
    URI pred = new URIImpl(EXAMPLE_NS + PAINTS);
    Literal obj = new NumericLiteralImpl(3);


    testValueRoundTrip(subj, pred, obj);
  }

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