1. Pure MVC w AS3 Tomasz Bińkowski [email_address] 29 stycznia 2010

4. 2. Opis PureMVC

6. 2. Opis PureMVC /24 Komunikacja obiektów:

7. 2.1. Struktura plików controller – katalog z obiektami command model – katalog z obiektami proxy oraz vo view – katalog z obiektami mediator oraz pliki mxml (w przypadku Flex oraz Air) /24

9. 2.2. Obiekt Fasady /24 /** * Singleton ApplicationFacade */ public static function getInstance() : ApplicationFacade { if ( instance == null ) instance = new ApplicationFacade( ); return instance as ApplicationFacade; } /** * Rejestruje obiekty command */ override protected function initializeController( ) : void { super.initializeController(); registerCommand( STARTUP, ApplicationStartupCommand ); } /** * Start aplikacji **/ public function startup( app:CafeTownsend ):void { sendNotification( STARTUP, app ); }

11. 2.2. Obiekt Fasady /24 /** * Obiekt Fasady **/ public class ApplicationFacade extends Facade { public static const STARTUP:String = "startup"; public static const SHUTDOWN:String = "shutdown"; public static const APP_LOGOUT:String = "appLogout"; public static const APP_LOGIN:String = "appLogin"; public static const VIEW_EMPLOYEE_LOGIN:String= "viewEmployeeLogin"; public static const VIEW_EMPLOYEE_LIST:String= "viewEmployeeList"; public static const ADD_EMPLOYEE:String= "addEmployee"; public static const UPDATE_EMPLOYEE:String= "updateEmployee"; public static const SAVE_EMPLOYEE:String= "saveEmployee"; public static const DELETE_EMPLOYEE:String= "deleteEmployee"; public

13. 2.3. Obiekt Command /24 /** * Rejestracja Proxy **/ override public function execute( note:INotification ) :void { facade.registerProxy( new EmployeeProxy()); facade.registerProxy( new UserProxy()); } /** * Rejestracja Mediatorów i pobranie danych **/ override public function execute( note:INotification ) :void { facade.registerMediator( new ApplicationMediator( note.getBody() ) ); var employeeProxy:EmployeeProxy = facade.retrieveProxy( EmployeeProxy.NAME ) as EmployeeProxy; employeeProxy.loadEmployees(); sendNotification( ApplicationFacade.VIEW_EMPLOYEE_LOGIN ); }

15. 2.4. Obiekt Proxy /24 /** * Funkcja wywołująca obiekt pobierający dane **/ public function loadEmployees():void { var delegate : LoadEmployeesDelegate = new LoadEmployeesDelegate( this ); delegate.loadEmployeesService(); } / ** * Poprawne pobranie danych, wysyła notyfikację do systemu **/ public function result( rpcEvent : Object ) : void { data = rpcEvent.result.employees.employee as ArrayCollection; sendNotification( ApplicationFacade.LOAD_EMPLOYEES_SUCCESS ); } /** * Błąd podczas pobierania danych, wysyła notyfikację do systemu **/ public function fault( rpcEvent : Object ) : void { data = new ArrayCollection(); errorStatus = "Could Not Load Employee List!"; sendNotification( ApplicationFacade.LOAD_EMPLOYEES_FAILED ); }

17. 2.5. Obiekt Mediator /24 override public function listNotificationInterests():Array { return [ ApplicationFacade.VIEW_EMPLOYEE_LOGIN, ApplicationFacade.VIEW_EMPLOYEE_LIST, ApplicationFacade.VIEW_EMPLOYEE_DETAIL, ApplicationFacade.APP_LOGOUT, ApplicationFacade.UPDATE_EMPLOYEE ]; } override public function handleNotification( note:INotification ):void { switch ( note.getName() ) { case ApplicationFacade.VIEW_EMPLOYEE_LOGIN: app.vwStack.selectedIndex = EMPLOYEE_LOGIN; break; case ApplicationFacade.VIEW_EMPLOYEE_LIST: employeeProxy.employee = null; app.vwStack.selectedIndex = EMPLOYEE_LIST; break; } }

19. 3. MultiCore

21. 3. Multicore /24 /** * Pobranie instancji Fasady danej aplikacji **/ public static function getInstance( key:String ) : ApplicationFacade { if ( instanceMap[ key ] == null ) instanceMap[ key ] = new ApplicationFacade( key ); return instanceMap[ key ] as ApplicationFacade; } /** * Start aplikacji * * @param app referencja do modułu w aplikacji */ public function startup( app: Module1 ):void { sendNotification( STARTUP, app ); }

22. 4. Zastosowanie

25. Kontakt ul. Wita Stwosza 40, 02-661 Warszawa tel. 22 646 76 84 fax 22 856 51 01 e-mail: info@mediovski.pl www.mediovski.pl