private void persist(PersistAction persistAction, String successMessage) {
        if (selected != null) {
            setEmbeddableKeys();
            try {
                if (persistAction != PersistAction.DELETE) {
                    getFacade().edit(selected);
                } else {
                    getFacade().remove(selected);
                }
                JsfUtil.addSuccessMessage(successMessage);
            } catch (EJBException ex) {
                String msg = "";
                Throwable cause = ex.getCause();
                if (cause != null) {
                    msg = cause.getLocalizedMessage();
                }
                if (msg.length() > 0) {
                    JsfUtil.addErrorMessage(msg);
                } else {
                    JsfUtil.addErrorMessage(ex, ResourceBundle.getBundle("/Bundle").getString("PersistenceErrorOccured"));
                }
            } catch (Exception ex) {
                Logger.getLogger(this.getClass().getName()).log(Level.SEVERE, null, ex);
                JsfUtil.addErrorMessage(ex, ResourceBundle.getBundle("/Bundle").getString("PersistenceErrorOccured"));
            }
        }
    }