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Using EJB3.1 as the backing bean for JSF using CDI (JSR-330)

This tutorial assumes that you already have knowledge on EJB, JSF, maven and injection. These are the steps as well as the code I use to make it work.

1.) Create 2 maven projects (web, ejb - has HelloBean class) 2.)

2.) In the web part we need to create 3 critical files inside /WEB-INF folder:

beans.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans></beans>

faces-config.xml

<?xml version='1.0' encoding='UTF-8'?>
<faces-config xmlns="http://java.sun.com/xml/ns/javaee"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    http://java.sun.com/xml/ns/javaee/web-facesconfig_2_0.xsd"
 version="2.0">

</faces-config>

web.xml



 XXX - Merchant Gateway

 
 
  javax.faces.PROJECT_STAGE
  Development
 

 
 
  home.xhtml
 
 
 
  javax.faces.DEFAULT_SUFFIX
  .xhtml
 

 
  javax.faces.application.CONFIG_FILES
  /WEB-INF/faces-config.xml
 
 
 
  Faces Servlet
  javax.faces.webapp.FacesServlet
  1
 

 
 
  Faces Servlet
  /faces/*
 
 
  Faces Servlet
  *.jsf
 
 
  Faces Servlet
  *.faces
 
 
  Faces Servlet
  *.xhtml

Then our xhtml page, let's name it home.xhtml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
 xmlns:h="http://java.sun.com/jsf/html">
<h:body>
 <h:outputLabel value="#{helloBean.name}" />
</h:body>
</html>

3.) For the second part (ejb), we will create 4 files: 1 java class and 3 xml. Inside resources/META-INF, we need to create(beans.xml, ejb-jar.xml, sun-ejb-jar.xml)

beans.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans></beans>

ejb-jar.xml

<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns="http://java.sun.com/xml/ns/javaee" xmlns:ejb="http://java.sun.com/xml/ns/javaee/ejb-jar_3_0.xsd"
 xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_1.xsd"
 version="3.1">

 <module-name>XXX-cg-ejbs</module-name>
 <display-name>YYY Gateway</display-name>
 
</ejb-jar>

sun-ejb-jar.xml


<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sun-ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Application Server 9.0 EJB 3.0//EN" "http://www.sun.com/software/appserver/dtds/sun-ejb-jar_3_0-0.dtd">
<sun-ejb-jar>
 <enterprise-beans />
</sun-ejb-jar>

And last, our class file HelloBean.java


import javax.annotation.PostConstruct;
import javax.ejb.Stateless;
import javax.inject.Named;

/**
 * @author Edward P. Legaspi
 * @since Jun 5, 2012
 */
@Stateless
@Named("helloBean")
public class HelloBean {
 private String name;
 
 public HelloBean() {
  name = "edward";
 }
 
 @PostConstruct
 public void init() {
  name = "edward";
 }

 public String getName() {
  return name;
 }

 public void setName(String name) {
  this.name = name;
 }

}

*You should take note that beans.xml, should be created on both the web and ejb project. After that the JSF front should be able to call the ejb back.

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