[jboss-user] [JBoss Seam] - Exception when i want to fill a form !!

Wed Aug 22 03:15:30 EDT 2007

Hello !!!

I have a little problem. I'am developping a web application (with Netbeans, glassfish and hibernate). In a page, the client must fill a form and when I click on the button, there is this exception : 

Exception during request processing: javax.servlet.ServletException: /abonnement_contact.xhtml @45,70 value="#{contactel.firstName}": Target Unreachable, identifier 'contactel' resolved to null

my jsf page : 

  | <?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:ui="http://java.sun.com/jsf/facelets"
  |        xmlns:h="http://java.sun.com/jsf/html"
  |        xmlns:s="http://jboss.com/products/seam/taglib"
  |        xmlns:f="http://java.sun.com/jsf/core">
  |     
  |     <body>
  |         
  |         <ui:composition template="templates/client.xhtml">
  |             
  |             <ui:define name="servicesclients">
  |                                
  |                 <h:form>
  |                     <h3>Please fill the Contact form</h3>
  |                     
  |                     <h:dataTable id="contact" value="#{conts}" var="cont" rendered="#{cont.size>0}">
  |                         <h:column>
  |                             <f:facet name="header">Contacts</f:facet>
  |                             <h:outputLabel value="#{cont.firstName} #{cont.lastName}"/>
  |                         </h:column>
  |                    </h:dataTable>
  | 
  |                   
  |                    <h:panelGrid columns="2">
  |                         <h:outputLabel value="FirstName :"/>
  |                         <h:inputText value="#{contactel.firstName}"/>
  |                         <h:outputLabel value="LastName :"/>
  |                         <h:inputText value="#{contactel.lastName}"/>
  |                         <h:outputLabel value="Phone :"/>
  |                         <h:inputText value="#{contactel.phone}"/>
  |                         <h:outputLabel value="Other Phone :"/>
  |                         <h:inputText value="#{contactel.otherPhone}"/>
  |                         <h:outputLabel value="Mail :"/>
  |                         <h:inputText value="#{contactel.mail}"/>
  |                         <h:outputLabel value="Username :"/>
  |                         <h:inputText value="#{contactel.username}"/>
  |                         <h:outputLabel value="Password :"/>
  |                         <h:inputText value="#{contactel.password}"/>
  |                     </h:panelGrid>
  |                    
  | 			<h:commandButton  value="Save" action="#{ContactManager.createContact}"/>
  |                         
  |                 </h:form>
  |                 
  |             </ui:define>
  | 
  | 
  | 
  |         </ui:composition>
  |         
  |     </body>
  | </html>
  | 

and my bean : 

  |  */
  | @Stateful
  | @Name("ContactManager")
  | @Scope(CONVERSATION)
  | public class ContactManager implements com.pingwy.web.front.ContactManagerLocal, Serializable{
  |                                        
  |    
  |         
  |     @In
  |     private EntityManager em;
  |     
  |     @DataModel("contacts")
  |     List<Contact> contacts;
  |                
  |     @In(required = false) @Out (required = false)
  |     Contact currentContact;
  |     
  |         
  |     @DataModelSelection("conts")
  |     @In (required = false)
  |     Contact contactel = new Contact();
  |    
  |     @DataModel("conts")
  |     private List<Contact> conts;
  |     
  |     @Factory("contacts")
  |     public String findContact(){
  |         
  |         Query query;
  |                 
  |         query = em.createQuery("select c from Contact c where c.customerId=#{currentContact.customerId}");
  |         
  |         contacts = (List<Contact>) query.getResultList();
  |         return null;
  |         
  |         
  |     }
  |     
  |        public String updateContact(){
  |         
  |         em.merge(currentContact);
  |         return null; 
  |                      
  |     }
  |     
  |     public String removeContact (){
  |         
  |         System.out.println("contact  bientot supprimé");
  |         em.remove(currentContact);
  |         return null;
  |     }
  |   
  | 
  |     @Begin(join = true)
  |     public String createContact(){
  |        
  |         conts.add(contactel);
  |         
  |         return "success";
  |              
  |     }
  |     
  | 
  | 
  |   public List<Contact> getConts() {
  |         return conts;
  |     }
  | 
  |     public void setConts(List<Contact> conts) {
  |         this.conts = conts;
  |     
  |    }
  |         public Contact getContactel() {
  |         return contactel;
  |     }
  | 
  |     public void setContactel(Contact contact) {
  |         this.contactel = contact;
  |     }
  | 
  |     @Remove @Destroy
  |     public void destroy(){
  |     }
  | }

Thanks for your help .

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