IsNew

public String isNew()

 @Override
    public String isNew() {
        try {
            writable = true;
            if(bodega.getIdbodega() == null || bodega.getIdbodega().equals("")){
            return "";
            }             

            Optional<Bodega> optional = bodegaRepository.findById(bodega);
            if (optional.isPresent()) {
                writable = false;

                JsfUtil.warningMessage(rf.getAppMessage("warning.idexist"));
                return "";
            } else {
                String id = bodega.getIdbodega();
                bodega = new Bodega();
                bodega.setIdbodega(id);
                bodegaSelected = new Bodega();
            }

        } catch (Exception e) {
            JsfUtil.errorMessage("isNew()" + e.getLocalizedMessage());
        }
        return "";
    }// </editor-fold>