}

    /**
     * Sets the polling fetch size.
     * @param pollingFetchSize The polling fetch size.
     */
    public void setPollingFetchSize(final int pollingFetchSize) {
        this.pollingFetchSize = pollingFetchSize;
    }

    /**
     * Sets the maximum crawling queue size.
     * @param maxCrawlingQueueSize The maximum crawling queue size.