Triple的使用

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public Triple<Long, Long, Double> getCarRunSummary(String did, Date startDate, Date endDate) {     Map<String, Object> map = kuduRepository.getCarRunSummary(did, startDate, endDate); if (map != null) {     Long mileage = map.get("total_mileage") != null ? ((Number) map.get("total_mileage")).longValue() : null;     Long runTime = map.get("total_run_time") != null ? ((Number) map.get("total_run_time")).longValue() : null;     Double fuelConsumption = map.get("total_fuel_consumption") != null ? ((Number) map.get("total_fuel_consumption")).doubleValue() : null;     return Triple.of(mileage, runTime, fuelConsumption); }     return null; }