The document discusses refactoring a Java EE 5 registration application to use the Seam framework. It begins with an overview of the original Java EE 5 application using JSF, managed beans and JPA. It then demonstrates refactoring the application to use Seam by replacing the managed bean with Seam components, removing faces-config.xml and adding Seam annotations and configuration. The refactoring simplifies the application and makes it more portable by reducing dependencies on XML configuration.

3. Java EE 5 Programming Model Registration Application Managed Bean Entity Class

4. DEMO

5. Java EE 5 Programming Model JSF Context DB Registration Application Managed Bean JSF Components Action Class Entity Class RegisterActionBean User ManagedBean

6. register.jsp: JSF In Action <td> Username </td> <td> < h:inputText id = &quot;userName&quot; value = &quot; #{ user.username } &quot; required = &quot;true&quot; > < f:validateLength minimum = &quot;5&quot; maximum = &quot;15 &quot; / > <td> Real Name </td> <td> < h:inputText id = &quot;name&quot; value = &quot; #{ user.name } &quot; required = &quot;true&quot; > <td> Password </td> <td> < h:inputSecret id = &quot;password&quot; value = &quot; #{ user.password } &quot; required = &quot;true&quot; > < f:validateLength minimum = &quot;5&quot; maximum = &quot;15 &quot; / > < h:commandButton id = &quot;registerCommand&quot; type = &quot;submit&quot; value = &quot;Register&quot; action = &quot; #{ user.register } &quot; / > A JSF Validator

9. Managed Bean public class ManagedBean { private String username ; private String name ; private String password ; public String getUsername() { return username; } Public String setUsernaame(String username) { this.username=username; } ... private RegisterActionLocal registerActionBean; private InitialContext ctx; { try { ctx = new InitialContext(); registerActionBean = (RegisterActionLocal) ctx.lookup(&quot;registration/RegisterActionBean/local&quot;); } catch (NamingException ex) { ex.printStackTrace(); } } public String register () { return registerActionBean.register(username, name, password); }

20. Seam Registration Application JSF Context DB Action Class Entity Class Seam Framework JSF Components RegisterActionBean User

22. DEMO

23. faces-config.xml <managed-bean-name> user </... <managed-bean-class>org.ex... 4. ManagedBean userName name password register @Name(&quot; register &quot;) RegisterActionBean user em register 2. User @Name(&quot; use r &quot;) @Scope(ScopeType.EVENT) username name password getters & setters 1. <h:inputText id=&quot;userName&quot; value=&quot;#{ user . username }&quot; ... <h:commandButton ... action=&quot;#{ register . register }&quot;/> ... GONE!!! register.jsp 3.

24. DEMO

30. DEMO

33. Questions & Answers