code: @Override
      public void setStatementParameters(PreparedStatement statement, boolean setDefaultId) throws SQLException {
          int oneBasedIndex = 1;
          if (!setDefaultId) statement.setInt(oneBasedIndex++, id);
          statement.setString(oneBasedIndex++, trip_id);
          setIntParameter(statement, oneBasedIndex++, start_time);
          setIntParameter(statement, oneBasedIndex++, end_time);
          setIntParameter(statement, oneBasedIndex++, headway_secs);
          setIntParameter(statement, oneBasedIndex++, exact_times);
      }
docs: Sets the parameters for a prepared statement following the parameter order defined in
  {@link com.conveyal.gtfs.loader.Table#FREQUENCIES}. JDBC prepared statement parameters use a one-based index.