The document discusses JavaServer Faces (JSF), a Java specification for building user interfaces for web applications. It provides an overview of JSF's core design principles, components, managed beans, bindings and configuration. Key topics covered include the JSF lifecycle, navigation, internationalization, AJAX support via libraries like Ajax4JSF, and Facelets as an alternative view technology to JSP.

1. JavaServer Faces 1.2 Peter Antman, CTO, 2007 Mogul

2. Java Server Faces JSF

3. A specification , several implementations

4. A user interface (UI) framework for Java Web applications

5. Designed much like a “fat” UI framework such as Swing and SWT

6. First RI released 2002

7. 1.0 specification released March 2004, not part of J2EE

8. 1.2 spec released spring 2006

9. 1.2 is part of J2EE 1.5

10. Is taking of (maybe)

11. New in JSF 1.2 JSF and JSF now shares expression language

12. Missmatch with JSP fixed (new JSP ViewHandler and tag base class)

13. Works with JSTL forEach

14. Multiple windows and back-button problems fixed

15. Implementations and add-ons Major implementations SUN RI (1.2)

16. MyFaces (1.0) Component libraries Tomahawk

17. Tobago Ajax support Ajax4jsf

18. Dynamic Faces JSP alternatives Facelets

19. Core design Build on Model-View-Controller (MVC) pattern

20. Component based standard GUI components (connects view and model)

21. Loose coupling to models through value- and method-binding technology Lifecycle managed Clearly defined cycle for request/response handling Event driven a request triggers event handlers that update models Built in navigation model

22. Not tied to any specific view technology

23. By design geared at server side execution

24. Building blocks <f:view> <h:form> <h:outputText value=&quot;#{test2.value}&quot; <h:inputText value=&quot;#{test2.value}&quot; <h:commandButton action=&quot;#{test2.valueUpdated}&quot; </h:form> Submit UIForm <navigation-rule> <navigation-case> <from-outcome>login <to-view-id>/login.jsp Browser JSP Component Tree <faces-config> faces-config Request Response value binding method binding 1. Restore View 2. Apply Request Values 3. Process Validation 4. Update Model Values 5. Invoke Application 6. Render Response UIViewRoot UIOutput UIInput Converter Validator ActionEvent getValue() setValue() valueUpdated() UICommand <managed-bean> <managed-bean-name>test2 <managed-bean-class>Test2 <managed-bean-scope>session RenderKit Navigation Handler Faces Servlet

25. Configure web application in web.xml Where should state be saved <context-param> <param-name>javax.faces.STATE_SAVING_METHOD</param-name> <param-value>client</param-value> </context-param> Add FacesServlet <servlet> <servlet-name>Faces Servlet</servlet-name> <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> Configure mapping <servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>/faces/*</url-pattern> </servlet-mapping >

26. View - JSP Add taglibs <%@ taglib uri=&quot;http://java.sun.com/jsf/core&quot; prefix=&quot;f&quot; %> <%@ taglib uri=&quot;http://java.sun.com/jsf/html&quot; prefix=&quot;h&quot;%> Start with <f:view> <f:view> Build page with HTML, JSTL and JSF components <h:form> <h:outputText value=&quot;#{test2.value}&quot;/> <h:inputText value=&quot;#{test2.value}&quot; id=&quot;name&quot;/> <h:commandButton action=&quot;#{test2.valueUpdated}&quot; value=&quot;Submit&quot;/> </h:form>

27. Validation - builtin Use builtin validators

28. Ad an id to enclosing element

29. Nest validator

30. Use a message for the element where any errors will appear <h:inputText id=&quot;in&quot; value=&quot;#{test2.value}&quot;> <f:validateLength minimum=&quot;2&quot; maximum=&quot;4&quot;/> </h:inputText> <h:message for=&quot;in&quot; />

31. Validator - custom Implement Validator public void validate(FacesContext, UIComponent comp, Object value) Add to faces-config

32. Use generic method <f:validator validatorId=”my.validator.MYID”/> <f:attribute name=”myValidatorConf” value=”SomeValue”/> Or develop a custom tag

33. Also possible to do ones own Converters