* @param hasData whether the result should have data
     * @return the list of access results
     */
    @Override
    public List<AccessResultImpl<Long>> getAccessResultList(final String url, final boolean hasData) {
        return dataHelper.getAccessResultList(url);
    }

    /**
     * Iterates over all access results for the specified session.
     *
     * @param sessionId the session ID

     *
     * @param url the URL
     * @param hasData whether the access results should have data
     * @return the list of access results
     */
    List<RESULT> getAccessResultList(String url, boolean hasData);

    /**
     * Iterates over access results for the given session ID and applies the callback.
     *
     * @param sessionId the session ID

     * @param url the URL to search for
     * @return the list of access results for the URL
     */
    public synchronized List<AccessResultImpl<Long>> getAccessResultList(final String url) {
        final List<AccessResultImpl<Long>> acList = new ArrayList<>();
        for (final Map.Entry<String, Map<String, AccessResultImpl<Long>>> entry : sessionMap.entrySet()) {