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AJAX and ViewParms w/ JSF 2.0

a guest Jan 2nd, 2011 290 Never
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  1. //XHTML Page
  2. <?xml version='1.0' encoding='UTF-8' ?>
  3. <!DOCTYPE html>
  4. <html xmlns="http://www.w3.org/1999/xhtml"
  5.       xmlns:h="http://java.sun.com/jsf/html"
  6.       xmlns:f="http://java.sun.com/jsf/core"
  7.       xmlns:ui="http://java.sun.com/jsf/facelets">
  8.     <ui:composition template="/templates/masterLayout.xhtml">
  9.         <ui:define name="content">
  10.             <f:metadata>
  11.                 <f:viewParam name="lineid" value="#{lineViewBean.lineid}" required="true" requiredMessage="#{msgs.lblNoLineInfo}">
  12.                     <f:validateLongRange minimum="1"/>
  13.                 </f:viewParam>
  14.                 <f:event type="preRenderView" listener="#{lineViewBean.loadLine}"/>
  15.             </f:metadata>
  16.  
  17.             <h3><h:outputText id="headerText" value="#{lineViewBean.line.name} Details"/></h3>
  18.  
  19.             <h:form id="lineDetails">
  20.                 <h:messages id="msgs"/>
  21.                 <h:inputText id="lineName" value="#{lineViewBean.line.name}">
  22.                     <f:ajax event="keyup" execute="btnSave" render="@this msgs" />
  23.                 </h:inputText>
  24.                 <h:message for="lineName" />
  25.                 <h:commandButton id="btnSave" action="#{lineViewBean.update}" value="#{msgs.btnSave}"/>
  26.                 <h:commandButton action="#{lineViewBean.delete}" value="#{msgs.btnDelete}" />
  27.             </h:form>
  28.                 <h:link outcome="listLines" value="#{msgs.lnkBrowseCatalog}" />
  29.         </ui:define>
  30.     </ui:composition>
  31. </html>
  32.  
  33.  
  34. //backingbean
  35. package com.tf.web;
  36.  
  37. import com.tf.facade.LineMaintainFacade;
  38. import com.tf.model.Line;
  39. import java.io.Serializable;
  40. import javax.ejb.EJB;
  41. import javax.faces.bean.ViewScoped;
  42. import javax.faces.bean.ManagedBean;
  43.  
  44. @ManagedBean(name = "lineViewBean")
  45. @ViewScoped
  46. public class LineViewViewBackingBean implements Serializable {
  47.  
  48.     @EJB
  49.     private LineMaintainFacade lineService;
  50.  
  51.     private Line line;
  52.     private Long lineId;
  53.    
  54.     public Long getLineid() {
  55.         return lineId;
  56.     }
  57.  
  58.     public void setLineid(Long lineid) {
  59.         this.lineId = lineid;
  60.     }
  61.  
  62.     public void loadLine() {
  63.         if (line == null) {
  64.             line = lineService.getLine(lineId);
  65.         }
  66.     }
  67.  
  68.     public Line getLine() {
  69.         return line;
  70.     }
  71.    
  72.     public void setLine(Line line) {
  73.         this.line = line;
  74.     }
  75.  
  76.     public String update() {
  77.         line = lineService.update(line);
  78.         return "update";
  79.     }
  80. }
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