java8_example_2.java

  // RowMapper using Anonymous Class
  List<User> users = jdbcTemplate.query(
    "SELECT USER_ID, USERNAME FROM USER", new RowMapper<User>() {

      @Override
      public User mapRow(ResultSet rs, int rowNum) throws SQLException {
        User user = new User();
        user.setUserId(rs.getLong("USER_ID"));
        user.setUsername(rs.getString("USERNAME"));
        return user;
      }

  });

  // RowMapper using Lambda Expression
  List<User> users = jdbcTemplate.query(
    "SELECT USER_ID, USERNAME FROM USER", (rs, rowNum) -> {
      User user = new User();
      user.setUserId(rs.getLong("USER_ID"));
      user.setUsername(rs.getString("USERNAME"));
      return user;
  });