@Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final Etat other = (Etat) obj;
        if (this.id != other.id) {
            return false;
        }
        if ((this.etat == null) ? (other.etat != null) : !this.etat.equals(other.etat)) {
            return false;
        }
        return true;
    }