@Service
@Transactional
public
        class InitService
{

    private final static
            Logger LOG = getLogger(InitService.class);
@Autowired
    private
            BankPreferencesRepository bankPreferencesRepository;
 @PostConstruct
    @Loggable
    @Transactional
    public
            void initDB()
    {
        if (payDoNotificationPreferencesRepository.count() == 0) {
            // fai le insert tramite repository}
}
}