public StockControlNotification(IRepository repo, IStockQuantityControl stockQuantityControl)
 {
     _repo = repo;
     _stockQuantityControl = stockQuantityControl;
 }
 public StockOrderingProcess(IRepository repo, IStockQuantityControl stockQuantityControl, IPublisher eventPublisher)
 {
     _repo = repo;
     _stockQuantityControl = stockQuantityControl;
     _eventPublisher       = eventPublisher;
 }