ex7_15.txt

来自「j2ee core design patterns」· 文本 代码 · 共 44 行

Example 7.15 	OrderAppService

public class OrderAppService {

    public OrderAppService() {
    }

    public void placeOrder(OrderTO orderTO)
    throws AccountException {
        Company company = null;
        Account account = null;

        String companyId = orderTO.companyId;
        String accountId = orderTO.accountId;

        // Lookup Company
        company = getCompany(companyId);

        // Lookup account
        account = company.getAccount(accountId);

        // add the order to the account
        Order order = new Order(orderTO);

        // calculate discount
        calculateDiscount(company, account, order);

        account.addOrder(order);
        AccountManager accountManager =
            account.getAccountManager();

        // Send email to Account Manager notifying the 
        // new order
        EmailAppService emailAppService =
            new EmailAppService();
        emailAppService.notifyAccountManager(accountManager,
            order);
    }

    public void calculateDiscount(Company company,
        Account account, Order order) {
    }

}