code: public static OrientStandardGraph open(final Configuration config) {
      boolean transactional = config.getBoolean(OrientGraph.CONFIG_TRANSACTIONAL, true);
      config.setProperty(OrientGraph.CONFIG_TRANSACTIONAL, transactional);
      OrientGraphFactory factory = new OrientGraphFactory(config);
      return new OrientStandardGraph(factory, config);
    }
docs: Opens a {@link OGraph}
  
  @param config URL  Configuration for the graph database
  @return OGraph database