public void addToProductQuantity(int product, int amount, Session session)
{
if (product < 0)
{
throw new ArgumentException("illegal product number");
}
if (amount <= 0)
{
throw new IllegalAmountException("error - amount must be a positive number");
}
db.addToProductQuantity(product, amount, session);
}
public void addToProductQuantity(int product, int amount, int session)
{
if (product < 0)
{
throw new ILLArgumentException("illegal product number");
}
if (amount <= 0)
{
throw new AlreadyExistException("Error: Quantity must be a positive number");
}
db.addToProductQuantity(product, amount, session);
}
