Your assignment this afternoon is to design the Action classes
                        for both the Customer and World Appls


                  4) Define the Action Classes
                      list the routines (funtions/methods/actions)
                       each class should have (implement)
                       this is an Interface (a list of methods)
                      write and test each routine (method)
                      
                   Go back thru the ProjectOveriew and pick out the 
                   Database calls
                   
                    I think I need a DAO (Data Access Object) class to hold
                    all the SQL for Customer objects
                    
                    CustomerDAO (an Interface) any code that return Customer objects go here
                       findCustomerByName()
                       findAllCustomers()
                       
                       
                    OrderDAO any code that return Order objects go here
                       findOrderByCustomer()
                       findOrderByDate()
                       ???
                      
        ---------------------------------------------------------

        Customer Appl
          CustomerDAO
            List<Customer> findCustomersByName(String firstName, String lastName)
            List<Customer> findAllCustomers()
            Customer findCustomerById(int id)
            void addCustomer(Customer customer)
            void updateCustomer(Customer customer)
            void deleteCustomer(Customer customer)
            void deleteCustomer(int id)

          OrderDAO
            List<Order> findOrdersByCustomer(Customer customer)
            List<Order> findOrdersByOrderDate(Date orderDate)
            Order findOrderById(int id)
            List<Order> findOrdersByOrderNumber(String orderNumber)
            void addOrder(Order order)
            void updateOrder(Order order)
            void deleteOrder(Order order)
            void deleteOrder(int id)

          ProductDAO
            List<Product> findAllProducts()
            List<Product> findByName(String name)
            Product findProductById(int id)
            List<Product> findProductsBySupplier(Supplier supplier)
            void addProduct(Product product)
            void updateProduct(Product product)
            void deleteProduct(Product product)
            void deleteProduct(int id)

          SupplierDAO
            List<Supplier> findAllSuppliers()
            List<Supplier> findSuppliersByCompanyName(String companyName)
            Supplier findSupplierById(int id)
            void addSupplier(Supplier supplier)
            void updateSupplier(Supplier supplier)
            void deleteSupplier(Supplier supplier)
            void deleteSupplier(int id)



        World Appl
          CityDAO
            List<City> findAllCities()
            List<City> findCityByName(String name)
            List<City> findCitiesByCountry(Country country)
            List<City> findCitiesByCountry(String countryCode)
            City findCityById(int id)
            void addCity(City city)
            void updateCity(City city)
            void deleteCity(City city)
            void deleteCity(int id)

          CountryDAO
            List<Country> findAllCountries()
            Country findCountryById(String code)
            List<Country> findCountriesByContintent(Continent continent)
            List<Country> findCountriesByContintent(String continentCode)
            List<Country> findCountriesByLanguage(CountryLanguage language)
            List<Country> findCountriesByLanguage(CountryLanguage language, boolean isOffical)
            List<Country> findCountriesByOrganization(Organization organization)
            List<Country> findCountriesByOrganization(String organizationCode)
            void addCountry(Country country)
            void updateCountry(Country country)
            void deleteCountry(Country country)
            void deleteCountry(String code)

          ContinentDAO
            List<Continent> findAllContinents()
            Continent findContinentById(String code)
            Continent findContinentByName(String name)
            void updateContinent(Countinent continent)
            
          OrganizationDAO
            List<Organization> findAllOrganizations()
            Organization find OrganizationById(String code)
            List<Organization> findOrganizationsByCountry(Country country)
            List<Organization> findOrganizationsByCountry(String countryCode)
            List<Organization> findOrganizationsByYearFounded(int year)
            void addOrganization(Organization organization)
            void updateOrganization(Organization organization)
            void deleteOrganization(Organization organization)
            void deleteOrganization(String code)
            

            I made several assumptions about database access in the World Appl
            
            To add a new Language, I MUST add it to a existing Country
              this means a Country needs a list of Langauges

            To add a country to an Organiation, I need to manage the
            List<Country> within an Organization
               I can add a List<Organization> in the Country Entity
               or I can add a List<Country> to the Organization Entity
               or both
               
               I will leave this unanswered for the time being...