Get managed bean reference in another managed bean

Question

I try to get instance of managed bean in another managed bean thanks to this BalusC post : here

With findBean method, it's great, I retrieve my bean but with ManagedProperty I can not get my bean.

My bean to inject is this one :

@ManagedBean(name="locale")
@SessionScoped
public class LocaleBean {

   private String locale;

   public String getLocale() {              
        return locale;
   }

   public void setLocale(String locale) {
        FacesContext.getCurrentInstance().getViewRoot().setLocale(new Locale(locale));      
        this.locale = locale;
   }

}

So when I call LocaleBean locale = findBean("locale"); in my login bean it's work but :

@ManagedProperty("#{locale}") // OR localeBean, LocaleBean...
private LocaleBean locale;

doesn't work...

com.sun.faces.mgbean.ManagedBeanCreationException: Impossible de créer le bean géré «login». Les problèmes suivants ont été détectés : - La propriété «locale» du bean géré «login» n’existe pas.

Why please ?

Answer 1

you should write getter/setter for bean which is annotated @ManagedProperty

Answer 2

I see that your LocaleBean is session scoped. Instead of the @ManagedProperty annotation and the getters/setters, you can reference another session scoped managed bean directly from the code using the getSessionMap method of the servlet context:

LocaleBean locale = (LocaleBean) FacesContext.getCurrentInstance()
                    .getExternalContext().getSessionMap().get("locale");