return baseConfig.getQueryAdditionalSearchFields();
            }

            @Override
            public String getQueryAdditionalSortFields() {
                return baseConfig.getQueryAdditionalSortFields();
            }

            @Override
            public BigDecimal getQueryBoostTitleAsDecimal() {
                return baseConfig.getQueryBoostTitleAsDecimal();

            }

            @Override
            public String getQueryAdditionalFacetFields() {
                return "";
            }

            @Override
            public String getQueryAdditionalSortFields() {
                return "";
            }

            @Override
            public String getQueryAdditionalNotAnalyzedFields() {
                return "";
            }

            @Override
            public String[] getQueryAdditionalFacetFields(String... fields) {
                return fields;
            }

            @Override
            public String[] getQueryAdditionalSortFields(String... fields) {
                return fields;
            }

            @Override
            public String[] getQueryAdditionalApiResponseFields(String... fields) {
                return fields;

            @Override
            public String[] getQueryAdditionalFacetFields(String... fields) {
                return fields;
            }

            @Override
            public String[] getQueryAdditionalSortFields(String... fields) {
                return fields;
            }

            @Override
            public String[] getQueryAdditionalApiResponseFields(String... fields) {
                return fields;

            }

            @Override
            public String getQueryAdditionalFacetFields() {
                return "";
            }

            @Override
            public String getQueryAdditionalSortFields() {
                return "";
            }

            @Override
            public String getQueryAdditionalAnalyzedFields() {
                return "";
            }

                    fessConfig.getIndexFieldLabel(), //
                    fessConfig.getIndexFieldSegment());
        }
        if (sortFields == null) {
            sortFields = fessConfig.getQueryAdditionalSortFields(//
                    SCORE_SORT_VALUE, //
                    fessConfig.getIndexFieldFilename(), //
                    fessConfig.getIndexFieldCreated(), //

        return list.toArray(new String[list.size()]);
    }

    String getQueryAdditionalSortFields();

    default String[] getQueryAdditionalSortFields(final String... fields) {
        final List<String> list = new ArrayList<>(fields.length + 10);
        stream(fields).of(stream -> stream.forEach(list::add));

     * The value is, e.g.  <br>
     * comment: Additional sort fields for queries.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getQueryAdditionalSortFields();

    /**
     * Get the value for the key 'query.additional.sort.fields' as {@link Integer}. <br>
     * The value is, e.g.  <br>
     * comment: Additional sort fields for queries.