public Properties getProperties() {

    Properties properties = new Properties(super.getProperties());

    properties.setProperty(Options.BUFFER_MODE, BufferMode.Transient.toString());

    return properties;
  }
  protected Properties getProperties() {

    final Properties properties = new Properties();

    // turn on quads.
    properties.setProperty(AbstractTripleStore.Options.QUADS, "true");

    //        // override the default vocabulary.
    //        properties.setProperty(AbstractTripleStore.Options.VOCABULARY_CLASS,
    //                NoVocabulary.class.getName());

    // turn off axioms.
    properties.setProperty(AbstractTripleStore.Options.AXIOMS_CLASS, NoAxioms.class.getName());

    // Note: No persistence.
    properties.setProperty(
        com.bigdata.journal.Options.BUFFER_MODE, BufferMode.Transient.toString());

    return properties;
  }