@Override
    public String getSimilarDocHash() {
        return sdh;
    }

    @Override
    public String getTrackTotalHits() {
        final String value = ComponentUtil.getFessConfig().getPageSearchlistTrackTotalHits();
        if (StringUtil.isNotBlank(value)) {
            return value;
        }
        return null;
    }

     * comment: Whether to track total hits in search list page.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getPageSearchlistTrackTotalHits();

    /**
     * Is the property for the key 'page.searchlist.track.total.hits' true? <br>
     * The value is, e.g. true <br>
     * comment: Whether to track total hits in search list page.