}

    public String getDepartmentNumber() {
        checkSpecifiedProperty("departmentNumber");
        return convertEmptyToNull(departmentNumber);
    }

    public void setDepartmentNumber(String value) {
        registerModifiedProperty("departmentNumber");
        this.departmentNumber = value;
    }

    public String getDescription() {
        checkSpecifiedProperty("description");

        setupEpg(_epgMap, et -> ((User) et).getCity(), (et, vl) -> ((User) et).setCity(DfTypeUtil.toString(vl)), "city");
        setupEpg(_epgMap, et -> ((User) et).getDepartmentNumber(), (et, vl) -> ((User) et).setDepartmentNumber(DfTypeUtil.toString(vl)),
                "departmentNumber");
        setupEpg(_epgMap, et -> ((User) et).getDescription(), (et, vl) -> ((User) et).setDescription(DfTypeUtil.toString(vl)),
                "description");

            result.setCarLicense(DfTypeUtil.toString(source.get("carLicense")));
            result.setCity(DfTypeUtil.toString(source.get("city")));
            result.setDepartmentNumber(DfTypeUtil.toString(source.get("departmentNumber")));
            result.setDescription(DfTypeUtil.toString(source.get("description")));

    }

    @Test
    public void test_user_departmentNumber() {
        final User user = new User();
        assertNull(user.getDepartmentNumber());

        user.setDepartmentNumber("DEPT001");
        assertEquals("DEPT001", user.getDepartmentNumber());
    }

    @Test
    public void test_user_description() {
        final User user = new User();

                setAttributeValue(result, fessConfig.getLdapAttrPreferredLanguage(), o -> user.setPreferredLanguage(o.toString()));
                setAttributeValue(result, fessConfig.getLdapAttrDepartmentNumber(), o -> user.setDepartmentNumber(o.toString()));
                setAttributeValue(result, fessConfig.getLdapAttrUidNumber(), o -> user.setUidNumber(DfTypeUtil.toLong(o)));