[jboss-user] [JBoss Seam] - selectOne

[KoniKoni]

I don's now what i do wrong:

@Name("fahrzeugact")
  | @Stateful
  | public class Fahrzeug implements FahrzeugInterface {
  |     @DataModel
  |     private List<Hersteller> hrList;
  |     
  |     @DataModelSelection("hrList")
  |     private Hersteller selectedHer;
  |       
  |     @PersistenceContext
  |     private EntityManager em;
  |     
  |     @In(required=false)
  |     private Hersteller hersteller;
  |     
  |     @Begin(join=true)
  |     @Factory("hrList")
  |     public void getHer(){
  |         hrList = em.createQuery("from Hersteller where akzept = true").getResultList();
  |     
  |     }
  |     public void setModel(){
  |         System.out.println("--------------- ");
  |     }
  |     
  |     @End
  |     public void reset() {}
  |     
  |     @Destroy
  |     @Remove
  |     public void destroy() {}
  | }
  | 
  | }



  |  <a4j:region>
  |                 <s:div id="frm">
  |                     <a4j:form>
  |                         
  |                                     <h:selectOneMenu  value="#{hersteller}" required="true">
  |                                         <s:convertEntity />
  |                                          <s:selectItems value="#{hrList}" var="her" label="#{her.bezeichnung}" noSelectionLabel="Bitte waehlen..."/>
  |                                         <a4j:support event="onchange" action="#{fahrzeugact.setModel}"/>
  |                                     </h:selectOneMenu>	 
  |                               
  |                         
  |                     </a4j:form>
  |                 </s:div>
  |             </a4j:region>
  | 
  |   <a4j:region>
  |             <s:div id="msg"><h:messages globalOnly="false"/> </s:div>
  |              </a4j:region>
  | 


I get i error "Invalid Value".

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