deferred event

An event whose occurrence has been deferred because it has been declared to be a deferrable event in the active state. See also state machine, transition.


A state may designate a set of events as deferrable. If an event occurs while an object is in a state for which the event is deferrable and the event does not trigger a transition, the event is deferred: The event has no immediate effect; it is saved until the object enters a state in which the given event is not deferred. If other events occur while the state is active, they are handled in the usual way. When the object enters a new state, deferred events that are no longer deferrable then occur one at a time and may trigger transitions in the new state (the order ...

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