docMap.put(fessConfig.getResponseFieldContentDescription(), viewHelper.getContentDescription(docMap));
                        docMap.put(fessConfig.getResponseFieldUrlLink(), viewHelper.getUrlLink(docMap));
                        docMap.put(fessConfig.getResponseFieldSitePath(), viewHelper.getSitePath(docMap));
                    }

     * comment: Field name for URL link in the response.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getResponseFieldUrlLink();

    /**
     * Get the value for the key 'response.field.site_path'. <br>
     * The value is, e.g. site_path <br>
     * comment: Field name for site path in the response.