Peter Norrhall. Callista Enterprise AB.

Transcription

1 JavaServer Faces Peter Norrhall Callista Enterprise AB CADEC 2004, JavaServer Faces, Slide 1

2 Rapid Application Development CADEC 2004, JavaServer Faces, Slide 2

3 Problem Statement + + = Java Web Development is NOT RAD!!!! CADEC 2004, JavaServer Faces, Slide 3

4 CADEC 2004, JavaServer Faces, Slide 4 Design

5 Property(Method) Binding View - Model Live data - Result Set - Model Values CADEC 2004, JavaServer Faces, Slide 5

6 Event handling Client <-> Server - custom event handlers Validation Navigation CADEC 2004, JavaServer Faces, Slide 6

7 CallistaStore - Demo CallistaStoreAppEar FacesServlet StoreService CallistaStoreServerEar CallistaStoreSupplierEar UserService CustomerService OrderService ProductService OrderMDB UserDao C ustomerdao OrderDao ProductDao UserEntity username : String password : String 1 1 CustomerEntity username : String name : String adress : String String 1 * OrderEntity id : int status : int 1 ProductEntity id : String price : float image : String 1 1 * OrderRowEntity rowno : int quantity : int * * ProductInfoEntity locale : Stri ng name : String description : S tring CADEC 2004, JavaServer Faces, Slide 7 CallistaStoreDb OrderQueue MailSession

8 CADEC 2004, JavaServer Faces, Slide 8 JavaServer Faces

9 Model View Controller Model 2 View Control Model CADEC 2004, JavaServer Faces, Slide 9

10 View UIViewRoot UIForm UIGraphic UIOutput UIInput UICommand UIOutput UIInput CADEC 2004, JavaServer Faces, Slide 10

11 View HTML <input type= submit...> <FORM> <input type= text >... JSP/JSTL <h:command_button> <h:form> <h:input_text>... JSF UICommand UIForm UIInput UIOutput UIPanel UIParameter CADEC 2004, JavaServer Faces, Slide 11

12 Model Property Binding Managed/Backing Bean Implicit Objects Resource bundle se.callista.demo.estore.resources.usernamelabel se.callista.demo.estore.resources.passwordlabel requestscope, sessionscope, applicationscope cookie header/headervalues param/paramvalues view facescontext CADEC 2004, JavaServer Faces, Slide 12

13 Navigation error CADEC 2004, JavaServer Faces, Slide 13

14 Navigation error CADEC 2004, JavaServer Faces, Slide 14

15 Code Behind Events Action home ActionEvent class LoginService { public void processlogin(actionevent event) { // } } Action class LoginService { public String processlogin() { // validate username/password... return loginok ; } } CADEC 2004, JavaServer Faces, Slide 15

16 Validation Validation of user input during the Process Validation phase Standard Validator DoubleRangeValidator (Double min/max) LengthValidator (# of characters) LongRangeValidator (Long min/max) RequiredValidator (non-null) StringRangeValidator (String min/max) <h:input_secret id="password" value= #{LogonBean.password}"> <f:validate_length maximum="16" minimum="6" /> </h:input_secret> CADEC 2004, JavaServer Faces, Slide 16

17 Validation Validator <h:input_secret id="password" value= #{LogonBean.password}"> <f:validate_length maximum="16" minimum="6" /> </h:input_secret> CADEC 2004, JavaServer Faces, Slide 17

18 Validation <h:input_text id=" " value= #{SubscriberBean. } validator= validator.validate > </h:input_text> class Validator { public void validate(facescontext context, UIInput component) { } } CADEC 2004, JavaServer Faces, Slide 18

19 ValueChangeEvent ValueChanged class ProfileService implements ValueChangedListener{ public void processvaluechange(valuechangeevent event) { // property has changed } } CADEC 2004, JavaServer Faces, Slide 19

20 CADEC 2004, JavaServer Faces, Slide 20 WSAD - demo

21 Extending JSF - The life cycle CADEC 2004, JavaServer Faces, Slide 21

22 Framework / Component Writers Renderer, RenderKit, RenderKitFactory Swing ViewHandler Oracle ADF UIX XML not JSP XulViewHandlerImpl.java (see Non-Jsp example) NavigationHandler & ActionListener Struts StateManager CADEC 2004, JavaServer Faces, Slide 22

23 Validation Component Writers javax.faces.validator.validator Javax.faces.webapp.ValidatorTag <h:input_text id=" " value= #{subscriberbean. }"> <foo: _address_validator /> </h:input_text> CADEC 2004, JavaServer Faces, Slide 23

24 Miscanellous Localization (Error) Messages ExternalContext ServletContext, Portlets,... Conversion Model javax.faces.convert.converter for each UIComponent CADEC 2004, JavaServer Faces, Slide 24

25 Tools Programming JSF by hand is like using WIN32 SDK The tool is everything - IBM WebSphere Studio Application Developer (JSP) - Sun Java Studio Creator (JSP?) - Oracle JDeveloper (XML) - Borland JBuilder (JSP?) - Eclipse? -... CADEC 2004, JavaServer Faces, Slide 25

26 JSF vs ASP.Net JSF Render/RenderKit JSF & ASP.Net UI Components Mature ASP.Net 1-Many Code Behind Navigation Client-Server Event Model Validation Rich set of components Managed Beans Multiple Clienttargets MVC CADEC 2004, JavaServer Faces, Slide 26

27 CADEC 2004, JavaServer Faces, Slide 27 JSF vs Struts

28 Resources - Specification, Reference impl., Forum - Articles, Links interview.jsp CADEC 2004, JavaServer Faces, Slide 28

29 Summary The tool is everything Components, components, components,... CADEC 2004, JavaServer Faces, Slide 29

30 CADEC 2004, JavaServer Faces, Slide 30 Questions!