com.kangirigungi.jstatemachine

Interface IEntryExitAction<StateId,Event>

Type Parameters:

StateId - The type used for referencing states.

Event - The type used for referencing events.

public interface IEntryExitAction<StateId,Event>

Callback interface for state entry and exit actions.

Author:

Peter Szabados

Method Summary

Methods

Modifier and Type	Method and Description
void	onEnter(IState<StateId,Event> state, Event event) Called when the state is entered.
void	onExit(IState<StateId,Event> state, Event event) Called when the state is exited.

Method Detail

onEnter

void onEnter(IState<StateId,Event> state,
           Event event)

Called when the state is entered. The event parameter contains the event by which the state is entered, or null in the following situations:

• Entering the initial state of a state machine when calling start().
• Entering the state through a completion transition.
• An exception is thrown from an action callback and the original state is being reentered.

Parameters:

state - The state being entered.

event - The event triggering the transition into the state.

onExit

void onExit(IState<StateId,Event> state,
          Event event)

Called when the state is exited. The event parameter contains the event by which the state is exited, or null in the following situations:

• After calling stop().
• Exiting the state through a completion transition.

Parameters:

state - The state being exited.

event - The event triggering the transition from the state.