1 Reply Latest reply on Mar 31, 2008 12:22 PM by pmuir

    Null session-scoped component

    cristinacom
    cristinacom Mar 29, 2008 5:03 PM

      Hello,


      I am using Facelets, and I am trying to access some Seam components in a tag-like class. I have this UIXtw class that I use like a tag. It is 'mapped' in brit.taglib.xml and that taglib is linked into web.xml as I learned from some tutorials online:


      @Name("UIXtw")
@AutoCreate
public class UIXtw extends UIOutput {

    @In
    private LocalXTextSessionWrapper xtw;
    
    @Override
    public void encodeBegin(FacesContext context) throws IOException {
        // XTextSessionWrapper xtw = (XTextSessionWrapper) Contexts.getSessionContext().get("xtw");
        log.info("xtw= #0", xtw);
        log.info("xtw.activeLanguage= #0", xtw.getActiveLanguage());
        ...
    }

    @Override
    public void encodeEnd(FacesContext context) throws IOException {
    }
}



      XTextSessionWrapper.java:


      @Stateful
@Name("xtw")
@Scope(ScopeType.SESSION)
@AutoCreate
public class XTextSessionWrapper implements LocalXTextSessionWrapper {
...
    @In(required = false, create = true)
    @Out(required = false)
    private XLanguage activeLanguage;

    public XLanguage getActiveLanguage() {
        if (activeLanguage == null) {
            setActiveLanguage(xLanguageDAO.findXLanguageByIdentifier("ro"));
        }
        return activeLanguage;
    }

    public void setActiveLanguage(XLanguage activeLanguage) {
        this.activeLanguage = activeLanguage;
    }
...
}



      Well, the problem is that when the encodeBegin() method is called, it cannot find the injected LocalXTextSessionWrapper and it reports it as null. As you can see from the commented line, I have also tried to get it from the session context manually with no success. I must mention that the same xtw injected in other components works fine.


      Could anyone please turn the lights on this problem? What am I missing? Why is the injected value null?


      Thank you in advance for any hint,
      Cristina.