final long numFound = getDocumentSizeByQuery(searchEngineClient, queryBuilder, fessConfig);
        final long maxSearchDocSize = fessConfig.getIndexerMaxSearchDocSizeAsInteger().longValue();
        final boolean exceeded = numFound > maxSearchDocSize;
        if (exceeded) {

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

    /**
     * Get the value for the key 'index.codec'. <br>
     * The value is, e.g. default <br>
     * comment: Codec type for the index.