org.springframework.statemachine.listener

Interface StateMachineListener<S,E>

Type Parameters:

S - the type of state

E - the type of event

All Known Implementing Classes:

CompositeStateMachineListener, LatchStateMachineListener, StateMachineListenerAdapter, StateMachineObjectSupport.StateMachineListenerRelay

public interface StateMachineListener<S,E>

StateMachineListener for various state machine events.

Author:

Janne Valkealahti

Method Summary

Modifier and Type	Method and Description
void	eventNotAccepted(org.springframework.messaging.Message<E> event) Notified when event was not accepted.
void	extendedStateChanged(java.lang.Object key, java.lang.Object value) Notified when extended state variable is either added, modified or removed.
void	stateChanged(State<S,E> from, State<S,E> to) Notified when state is changed.
void	stateContext(StateContext<S,E> stateContext) Notified on various StateContext.Stages about a StateContext.
void	stateEntered(State<S,E> state) Notified when state is entered.
void	stateExited(State<S,E> state) Notified when state is exited.
void	stateMachineError(StateMachine<S,E> stateMachine, java.lang.Exception exception) Notified when statemachine enters error it can't recover from.
void	stateMachineStarted(StateMachine<S,E> stateMachine) Notified when statemachine starts
void	stateMachineStopped(StateMachine<S,E> stateMachine) Notified when statemachine stops
void	transition(Transition<S,E> transition) Notified when transition happened.
void	transitionEnded(Transition<S,E> transition) Notified when transition ended.
void	transitionStarted(Transition<S,E> transition) Notified when transition started.

Method Detail

stateChanged

void stateChanged(State<S,E> from,
                  State<S,E> to)

Notified when state is changed.

Parameters:

from - the source state

to - the target state

stateEntered

void stateEntered(State<S,E> state)

Notified when state is entered.

Parameters:

state - the state

stateExited

void stateExited(State<S,E> state)

Notified when state is exited.

Parameters:

state - the state

eventNotAccepted

void eventNotAccepted(org.springframework.messaging.Message<E> event)

Notified when event was not accepted.

Parameters:

event - the event

transition

void transition(Transition<S,E> transition)

Notified when transition happened.

Parameters:

transition - the transition

transitionStarted

void transitionStarted(Transition<S,E> transition)

Notified when transition started.

Parameters:

transition - the transition

transitionEnded

void transitionEnded(Transition<S,E> transition)

Notified when transition ended.

Parameters:

transition - the transition

stateMachineStarted

void stateMachineStarted(StateMachine<S,E> stateMachine)

Notified when statemachine starts

Parameters:

stateMachine - the statemachine

stateMachineStopped

void stateMachineStopped(StateMachine<S,E> stateMachine)

Notified when statemachine stops

Parameters:

stateMachine - the statemachine

stateMachineError

void stateMachineError(StateMachine<S,E> stateMachine,
                       java.lang.Exception exception)

Notified when statemachine enters error it can't recover from.

Parameters:

stateMachine - the state machine

exception - the exception

extendedStateChanged

void extendedStateChanged(java.lang.Object key,
                          java.lang.Object value)

Notified when extended state variable is either added, modified or removed.

Parameters:

key - the variable key

value - the variable value

stateContext

void stateContext(StateContext<S,E> stateContext)

Notified on various StateContext.Stages about a StateContext.

Parameters:

stateContext - the state context