public  void dispose()
Discard this buffer.

 public NotificationResult fetchNotifications(NotificationBufferFilter filter,
    long startSequenceNumber,
    long timeout,
    int maxNotifications) throws InterruptedException
Fetch notifications that match the given listeners.

The operation only considers notifications with a sequence
number at least startSequenceNumber. It will take
no longer than timeout, and will return no more
than maxNotifications different notifications.

If there are no notifications matching the criteria, the
operation will block until one arrives, subject to the
timeout.