class TracingService extends RecordService {

    public Tracing save(ItemValuesMap itemValues, List<String> photoPaths) throws IOException {
        Tracing tracing = generateTracingFromItemValues(itemValues,
                generateUniqueId());
        tracingDao.save(tracing);
        tracingPhotoDao.save(tracing, photoPaths);
        return tracing;
    }

    public  TracingService(TracingDao tracingDao, TracingPhotoDao tracingPhotoDao);

}