}
        if (StringUtil.isNotBlank(fessConfig.getQueryFacetFieldsSize())) {
            size = fessConfig.getQueryFacetFieldsSizeAsInteger();
        }
        if (StringUtil.isNotBlank(fessConfig.getQueryFacetFieldsMinDocCount())) {
            minDocCount = Long.parseLong(fessConfig.getQueryFacetFieldsMinDocCount());
        }

     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     * @throws NumberFormatException When the property is not integer.
     */
    Integer getQueryFacetFieldsSizeAsInteger();

    /**
     * Get the value for the key 'query.facet.fields.min_doc_count'. <br>
     * The value is, e.g. 1 <br>