boolean visited(QUEUE urlQueue);

    /**
     * Generates URL queues.
     *
     * @param previousSessionId The previous session ID.
     * @param sessionId The session ID.
     */
    void generateUrlQueues(String previousSessionId, String sessionId);

     * Generates URL queues from a previous session's access results.
     * @param previousSessionId The previous session ID.
     * @param sessionId The current session ID.
     */
    @Override
    public void generateUrlQueues(final String previousSessionId, final String sessionId) {
        final Queue<UrlQueueImpl<Long>> urlQueueList = dataHelper.getUrlQueueList(sessionId);

     *
     * @param previousSessionId The previous session ID.
     * @param sessionId The new session ID.
     */
    @Override
    public void generateUrlQueues(final String previousSessionId, final String sessionId) {
        dataService.iterate(previousSessionId, accessResult -> {
            final OpenSearchUrlQueue urlQueue = new OpenSearchUrlQueue();

        }

        @Override
        public boolean visited(OpenSearchUrlQueue urlQueue) {
            return false;
        }

        @Override
        public void generateUrlQueues(String sessionId, String url) {
            // Do nothing in test
        }

        @Override
        public void insert(OpenSearchUrlQueue urlQueue) {
            // Do nothing in test
        }