fessConfig.getIndexFieldFavoriteCount(), //
                    fessConfig.getIndexFieldConfigId(), //
                    fessConfig.getIndexFieldLang(), //
                    fessConfig.getIndexFieldHasCache());
        }
        if (scrollResponseFields == null) {
            scrollResponseFields = fessConfig.getQueryAdditionalScrollResponseFields(//
                    SCORE_FIELD, //

                // text cache
                putResultDataBody(dataMap, fessConfig.getIndexFieldCache(), cache);
                putResultDataBody(dataMap, fessConfig.getIndexFieldHasCache(), Constants.TRUE);
            }
        }
        // digest
        putResultDataBody(dataMap, fessConfig.getIndexFieldDigest(),

                    // cache
                    putResultDataBody(dataMap, fessConfig.getIndexFieldCache(), new String(InputStreamUtil.getBytes(is), charSet));
                    putResultDataBody(dataMap, fessConfig.getIndexFieldHasCache(), Constants.TRUE);
                } catch (final Exception e) {
                    logger.warn("Failed to write cache: sessionId={}, responseData={}", sessionId, responseData, e);
                }

     * comment: Field name for cache status in the index.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexFieldHasCache();

    /**
     * Get the value for the key 'index.field.last_modified'. <br>
     * The value is, e.g. last_modified <br>
     * comment: Field name for last modified date in the index.