0 Replies Latest reply on Mar 25, 2007 7:11 AM by Konstantin Kauz

    selectOneMenu Question

    Konstantin Kauz Novice

      I shoud like to implement selection from first selectOneMenu, object of which is supplied contains
      a list, this is spent with the second selectOneMenu.

      The first menu functions and the second not, maybe somebody can help me.

      Here is my code:


      Component:

      <framework:entity-query name="allHer"
       ejbql="select h from Hersteller h"
       order="h.bezeichnung" >
       </framework:entity-query>




      View:



      <ui:define name="main">
       <s:link value="zurueck" view="/home"/>
      
       <s:div>
       <a4j:region>
       <s:div id="frm">
       <a4j:form>
       <h:selectOneMenu value="#{hersteller}">
       <s:convertEntity />
       <s:selectItems value="#{allHer.resultList}" var="her" label="#{her.bezeichnung}" noSelectionLabel="Bitte waehlen..." />
       <a4j:support event="onchange" action="#{fahrzeugact.setModel}" reRender="msg,frm1">
       <s:conversationPropagation type="join" /> </a4j:support>
       </h:selectOneMenu>
      
      
       </a4j:form>
       </s:div>
       </a4j:region>
      
       <a4j:region>
       <s:div id="frm1">
       <a4j:form>
       <h:selectOneMenu value="#{kmd}" disabled="#{empty hersteller.kfzmodel}">
       <s:convertEntity />
       <s:selectItems value="#{hersteller.kfzmodel}" var="md" label="#{md.bezeichnung}" noSelectionLabel="Bitte waehlen..." />
       <a4j:support event="onchange" action="#{fahrzeugact.setModel1}" reRender="msg">
       <s:conversationPropagation type="join" /> </a4j:support>
       </h:selectOneMenu>
       </a4j:form>
       </s:div>
       </a4j:region>
      
      
       <a4j:region>
      
       <s:div id="msg"><h:messages globalOnly="false"/> </s:div>
       </a4j:region>
       </s:div>
       </ui:define>
      
      
      Session:
      
      
      @Name("fahrzeugact")
      @Stateful
      public class Fahrzeug implements FahrzeugInterface {
       @DataModel
       private List<Hersteller> hrList;
      
       private List<Hersteller> hrsList;
      
       @In(required=false)
       private KfzModel kmd;
      
       @PersistenceContext
       private EntityManager em;
      
       @In(required=false)
       private Hersteller hersteller;
      
      
      
       @Begin
       public List<Hersteller> getHrsList() {
       return em.createQuery("from Hersteller where akzept = true").getResultList();
       }
      
      
       public void setModel(){
       // md
       System.out.println("--------------- " + hersteller.getBezeichnung());
       }
      
       public void setModel1(){
       // md
      
       System.out.println("--------------- 1 " + kmd.getBezeichnung());
       }
      
       @End
       public void reset() {}
      
       @Destroy
       @Remove
       public void destroy() {}
      }
      
      



      I believe that it is because of different contexts, I must in component.xml defined inquiry to tie, white however not how. And if I define the whole over factories, then over messages on the side one spends: invalid value.

      I have the example ?UI? looked at, there am realized it over HomeEntity. How can I realize this completely on source code level, without HomeEntity?


      Or think I there in wrong direction?