return "givenName";
        }

        @Override
        public String getLdapAttrSurname() {
            return "sn";
        }

        @Override
        public String getLdapAttrBusinessCategory() {
            return "businessCategory";
        }

        @Override
        public Integer getPluginVersionFilterAsInteger() {
            return null;
        }

        @Override

                setAttributeValue(result, fessConfig.getLdapAttrX121Address(), o -> user.setX121Address(o.toString()));
                setAttributeValue(result, fessConfig.getLdapAttrBusinessCategory(), o -> user.setBusinessCategory(o.toString()));
                setAttributeValue(result, fessConfig.getLdapAttrRegisteredAddress(), o -> user.setRegisteredAddress(o.toString()));

            return "givenName";
        }

        @Override
        public String getLdapAttrSurname() {
            return "sn";
        }

        @Override
        public String getLdapAttrBusinessCategory() {
            return "businessCategory";
        }

        @Override
        public String getJobSystemPropertyFilterPattern() {
            return "custom\\..*";
        }

     * comment: LDAP attribute for business category.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getLdapAttrBusinessCategory();

    /**
     * Get the value for the key 'ldap.attr.registeredAddress'. <br>
     * The value is, e.g. registeredAddress <br>
     * comment: LDAP attribute for registered address.