2 Replies Latest reply on Aug 8, 2013 9:09 AM by Hans-Michael Rupp

    CDI vs. ManagedBean

    Hans-Michael Rupp Novice

      JBoss EAP 6.1

      I have the following JSF

       

      <!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"

            xmlns:f="http://java.sun.com/jsf/core"

            xmlns:ui="http://java.sun.com/jsf/facelets">

       

          <h:head>

          </h:head>

          <h:body>

              <h2>JSF example on JBoss 7</h2>

              <h:form id="jsfexample">

              <h:panelGrid columns="2">

                      <h:outputText value="Enter key:" />

                      <h:inputText value="#{manager.key}" />

                      <h:outputText value="Enter value:" />

                      <h:inputText value="#{manager.value}" />

                      <h:commandButton actionListener="#{manager.save}" value="Save" />

                      <h:commandButton actionListener="#{manager.clear}" value="Clear Cach" />

                      <h:messages />

              </h:panelGrid>

              </h:form>

              <h:dataTable value="#{manager.cacheList}" var="item">

                  <h:column>

                      <f:facet name="header">Key</f:facet>

                      <h:outputText value="#{item.key}" />

                  </h:column>

                  <h:column>

                      <f:facet name="header">Value</f:facet>

                      <h:outputText value="#{item.value}" />

                  </h:column>

              </h:dataTable>

          </h:body>

      </html>

       

      And a bean:

      package com.packtpub.chapter4.bean;

       

      import java.util.ArrayList;

      import java.util.List;

       

      import javax.ejb.EJB;

      import javax.faces.bean.ManagedBean;

      import javax.faces.event.ActionEvent;

      import javax.inject.Named;

       

      import com.packtpub.chapter4.ejb.CacheBean;

      import com.packtpub.chapter4.entity.Property;

       

      @Named("manager")

      //@ManagedBean(name="manager")

      public class PropertyManager {

         

          List<Property> cacheList = new ArrayList<Property>();

         

          @EJB

          CacheBean cacheBean;

         

          private String key;

          private String value;

         

          //Getters and setters omitted

       

         

          public void save(ActionEvent e) {

              cacheBean.put(this.key, this.value);

              System.out.println("Saved " + key + ":" + value);

          }

         

          public void clear(ActionEvent e) {

              System.out.println("Called clear");

              cacheBean.delete();

          }

         

          public List<Property> getCacheList() {

              return cacheBean.getCache();

          }

       

      }

       

      It works as ManagedBean. When I change it to a CDI Bean the key and value properties are not set on the bean:

      14:05:58,818 INFO  [stdout] (http-localhost/127.0.0.1:8080-1) Saved null:null

       

      I do have a beans.xml:

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

      <beans 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://docs.jboss.org/cdi/beans_1_0.xsd">

         

      </beans>