/**
* Sets the amount of money that the customer with the given customer ID has available for making
* purchases.
*
* @param customerId the customer ID
* @param credit the new customer credit amount
*/
@Transactional
public void setCustomerCredit(String customerId, double credit) {
Customer customer = new Customer(customerId, credit);
storeDAO.save(customer);
}
/**
* Sets the inventory and price for the product with the given product ID. Any previous inventory
* and price values for the product are replaced.
*
* @param productId the product ID
* @param price the price of the product
* @param inventory the number of items in stock
*/
@Transactional
public void stock(String productId, double price, long inventory) {
Product product = new Product(productId, price, inventory);
storeDAO.save(product);
}