6485f05a87
* Add state machine activity * address greptile state machine feedback * address state machine trigger cancellation feedback
1.5 KiB
1.5 KiB
Data Model: State Machine Activity
StateMachine
States: Ordered collection of state definitions.Transitions: Ordered collection of directed transition definitions.InitialState: Name of the first state.CurrentState: Name of the active state, updated as transitions complete. A current state with no valid outbound transitions is terminal.
State
Name: Unique state name by convention; duplicate names resolve to the first declaration.Entry: Optional activity scheduled when entering the state.Exit: Optional activity scheduled when leaving the state.
Transition
Name: Optional machine-readable transition name.DisplayName: Optional human-readable transition name.From: Source state name.To: Target state name.Trigger: Optional activity that waits for the transition event or condition source. If its condition evaluates false, the trigger remains active for a future attempt.Condition: Optional boolean expression input. Missing condition means true; false means the source state remains current and the same transition trigger is re-armed.Action: Optional activity scheduled after the trigger wins and before source exit.
State Transitions
EnterState -> Entry -> OutboundTriggers
EnterState -> Entry -> NoValidOutboundTransitions -> CompleteStateMachine
OutboundTrigger -> ConditionFalse -> ReArmFailedTrigger + OutboundTriggersRemainPending
OutboundTrigger -> ConditionTrue -> CancelCompetingTriggers -> Action -> SourceExit -> TargetEntry -> OutboundTriggers