How to inject @EJB, @PersistenceContext, @Inject, @Autowired, etc in @FacesConverter?

Question

How can I inject a dependency like @EJB, @PersistenceContext, @Inject, @AutoWired, etc in a @FacesConverter?

Answer 1

By Luis Chacon, Sv

Works fine, tested

definition EJB :

@Stateless
@LocalBean
public class RubroEJB {

    @PersistenceContext(unitName = "xxxxx")
    private EntityManager em;

    public List getAllCfgRubroPres(){
        List rubros = null;
        Query q = em.createNamedQuery("xxxxxxx");
        rubros = q.getResultList();
        return rubros;
    }
}

define bean with the Aplication bean scope, for get the EJB Object

@ManagedBean(name="cuentaPresService", eager = true)
@ApplicationScoped
public class CuentaPresService {

    @EJB
    private RubroEJB cfgCuentaEJB;

    public RubroEJB getCfgCuentaEJB() {
        return cfgCuentaEJB;
    }

    public void setCfgCuentaEJB(RubroEJB cfgCuentaEJB) {
        this.cfgCuentaEJB = cfgCuentaEJB;
    }
}

final Access to Ejb Object from Converter:

@FacesConverter("cuentaPresConverter")
public class CuentaPresConverter implements Converter {

    @EJB
    RubroEJB rubroEJB;

    public Object getAsObject(FacesContext fc, UIComponent uic, String value) {
        if(value != null && value.trim().length() > 0) {
            try {
                CuentaPresService service = (CuentaPresService) fc.getExternalContext().getApplicationMap().get("cuentaPresService");


                List listCuentas=service.getCfgCuentaEJB().getAllCfgCuentaPres();


                ................