The AlarmNotification class implements the notification interface for the Alarm and the Ticker class.

For any Alarm or Ticker object, notifications of alarm triggering and alarm cancellation are sent to the notification target specified when creating the Alarm or Ticker instance. The notification target must implement this alarm notification interface. Upon alarm triggering a triggered message is sent to the notification target, and upon alarm cancellation a cancel message is sent to the notification target.

This class is defined as a MIXIN class.