public String[] getQueryAdditionalScrollResponseFields(String... fields) {
                return fields;
            }

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

            @Override
            public String[] getQueryAdditionalHighlightedFields(String... fields) {

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

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

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

    }

    String getQueryAdditionalCacheResponseFields();

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

            public String[] getQueryAdditionalScrollResponseFields(String... fields) {
                return fields;
            }

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

            @Override
            public String[] getQueryAdditionalHighlightedFields(String... fields) {

            public String[] getQueryAdditionalScrollResponseFields(String... fields) {
                return fields;
            }

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

            @Override
            public String[] getQueryAdditionalHighlightedFields(String... fields) {

                    fessConfig.getIndexFieldLang(), //
                    fessConfig.getIndexFieldHasCache());
        }
        if (cacheResponseFields == null) {
            cacheResponseFields = fessConfig.getQueryAdditionalCacheResponseFields(//
                    SCORE_FIELD, //
                    fessConfig.getIndexFieldId(), //
                    fessConfig.getIndexFieldDocId(), //
                    fessConfig.getIndexFieldBoost(), //

     * comment: Additional cache response fields for queries.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getQueryAdditionalCacheResponseFields();

    /**
     * Get the value for the key 'query.additional.cache.response.fields' as {@link Integer}. <br>
     * The value is, e.g.  <br>