@PostConstruct not working in @FacesValidator

Question

Is the post construct annotation not supported in validators?

I have a application scoped jndi servicelocator bean which I inject as a managed property into my validator.

@ManagedProperty(value = "#{jndiServiceLocatorBean}")
private final JndiServiceLocatorBean jndiServiceLocatorBean = null;

The post construct annotated method to initialize my necessary remote bean is never invoked and so my remote bean remains null.

private UserBeanRemote userBeanRemote = null;

@PostConstruct
public void postConstruct()
{
    this.userBeanRemote = (UserBeanRemote) this.jndiServiceLocatorBean.getRemoteBean(UserBeanRemote.class);
}

Answer 1

It works only if the Validator is annotated as a @ManagedBean or @Named instead of @FacesValidator.

Just use the normal constructor instead.

@FacesValidator("fooValidator")
public class FooValidator implements Validator {

    private UserBeanRemote userBeanRemote;

    public FooValidator() {
        FacesContext context = FacesContext.getCurrentInstance();
        JndiServiceLocatorBean jndiServiceLocatorBean = context.getApplication().evaluateExpressionGet(context, "#{jndiServiceLocatorBean}", JndiServiceLocatorBean.class);
        this.userBeanRemote = (UserBeanRemote) jndiServiceLocatorBean.getRemoteBean(UserBeanRemote.class);
    }

    // ...
}

Support for dependency injection in JSF artifacts other than @ManagedBean is planned for JSF 2.2 (spec issue 763).

See also:

• How to inject in @FacesValidator with @EJB, @PersistenceContext, @Inject, @Autowired
• Communication in JSF 2.0 - Getting an EJB in @FacesValidator and @FacesConverter