@DataModel does not create a component

[laksu]

Hi,
I have a SFSB:

/*
package datassist.gop.action;

import datassist.gop.domain.Istek;
import datassist.gop.domain.Uzman;
import java.io.Serializable;
import java.util.List;
import javax.ejb.Remove;
import javax.ejb.Stateful;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceContextType;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Begin;
import org.jboss.seam.annotations.Create;
import org.jboss.seam.annotations.Destroy;
import org.jboss.seam.annotations.End;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.datamodel.DataModel;
import org.jboss.seam.annotations.datamodel.DataModelSelection;
import org.jboss.seam.log.Log;

@Stateful
@Name("isteklerAction")
@Scope(ScopeType.SESSION)
public class IsteklerAction implements Serializable, IsteklerActionLocal {

 @PersistenceContext(type=PersistenceContextType.EXTENDED)
 private EntityManager entityManager;

 public IsteklerAction() {
 }

 @Create
 public void init(){
 System.out.println("initing istekler. logger is "+((logger==null)?"null":"not null"));
 refresh();
 }

 @DataModel
 private List<Istek> isteklerList;

 public void refreshIstekler(){
 System.out.println("refreshing istekler");
 isteklerList=entityManager.createQuery("from Istek i").getResultList();
 for(Istek i:isteklerList){
 System.out.println("Istek: id="+i.getId()+" konu="+i.getKonu()+" acan="+i.getAcan().getAdSoyad());
 }
 }

 private List<Uzman> uzmanlar;

 private void refreshUzmanlar(){
 System.out.println("refreshing kullanicilar");
 uzmanlar=entityManager.createQuery("from Uzman u").getResultList();
 for(Uzman u:uzmanlar){
 System.out.println("Uzman: id="+u.getId()+" ad="+u.getAd());
 }
 }

 public void refresh() {
 refreshIstekler();
 refreshUzmanlar();
 }

 @DataModelSelection()
 private Istek istek;

 @Begin
 public void setIstek(Istek istek){
 System.out.println("Istek=");
 System.out.println("Istek: id="+istek.getId());
 System.out.println(" konu="+istek.getKonu());
 System.out.println(" acan="+istek.getAcan().getAdSoyad());

 this.istek=istek;
 entityManager.refresh(istek);
 }

 @Begin
 public void select(){
 System.out.println("Istek=");
 System.out.println("Istek: id="+istek.getId());
 System.out.println(" konu="+istek.getKonu());
 System.out.println(" acan="+istek.getAcan().getAdSoyad());
 }

 @End
 public void clear() {
 istek=null;
 }

 public List<Istek> getIsteklerList() {
 return isteklerList;
 }

 public void setIsteklerList(List<Istek> istekler) {
 this.isteklerList = istekler;
 }

 public List<Uzman> getUzmanlar() {
 return uzmanlar;
 }

 public void setUzmanlar(List<Uzman> uzmanlar) {
 this.uzmanlar = uzmanlar;
 }

 public void logSomething(){
 System.out.println("Trying to log something dummy and the logger is "+((logger==null)?"null":"not null"));
 }

 @Logger
 private Log logger;

 @Remove @Destroy
 public void destroy(){}

}

and I have the following in my page:

 <h:dataTable var="istek" value="#{isteklerlist}">
 <h:column>
 <f:facet name="header">No</f:facet>
 <s:link value="#{istek.id}" action="#{isteklerAction.setIstek(istek)}"/>
 </h:column>
 <h:column>
 <f:facet name="header">Tarih</f:facet>
 #{istek.acilis}
 </h:column>
 <h:column>
 <f:facet name="header">Konu</f:facet>
 #{istek.konu}
 </h:column>
 </h:dataTable>

I cannot make the table to display the isteklerList. The table's header shows up but no data. I have verified to print that the data exists. I have a similar page in another app working but this one does not. In fact the DataModel component is not even created. I checked with the debug page to see that no component named "isteklerList" exists.
What am I missing?

[gmanwani]

Seems like a minor typo..

your variable name is ->isteklerList

while on the page u use <h:dataTable var="istek" value="#{isteklerlist}">

notice that the 'L' should be uppercase

[laksu]

I wish it was a typo. The typo must have slipped in while suspecting everything and trying alternatives wildly. I have corrected the typo but the situation is same.

[stu2]

Hmm. If the data is there but not showing up in the table, I wonder if there's a timing problem. That is, is the data populated after the JSF components are attempting to retrieve it. What about putting some debug output in getIsteklerList() and making sure this is being called AFTER your population methods?

[laksu]

Nothing, the getter is not even gets called.
Whatever i write as the table's var (i.e. as i did with the typo and i also tried a weird string like "qwerty") it does not complain about it; no exceptions or messages. It is like it just does not care about it.
The interesting part is that when I check with seam-debug isteklerList does not exist in any context.

[gmanwani]

aha.. I think I know the problem. You are missing the @Factory annotation to initialize the datamodel


@Factory("isteklerList ")
public void loadIsteklerList() {
logger.debug("loadIsteklerList ");
if (isteklerList == null) {
isteklerList = populateList();
}

[laksu]

Nope
I have tried that already and tried once again to make sure.
Also, I don't think I must have a @Factory method. I already have a @Create and I initialize the list there. I dump the contents of the List and I am certain it is initialized. Problem is just that it is not recognized by Seam as a component. For that reason, even the @Factory method does not get called.
It must have something to do with the configuration