net.sourceforge.anotherfsm

Interface StateListener

All Known Implementing Classes:

StateAdapter

public interface StateListener

The listener for state changes. It is a responsibility of the client code to throw no runtime exceptions in callbacks. Any unhandled exception can stop an internal thread and break whole processing of events. It is generally bad to handle all possible exceptions to prevent and hide errors so it is not implemented in the library at all.

Author:

Michal Turek

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	StateListener.Type The type of state listener to specify the behavior on loop transition.

Method Summary

Methods

Modifier and Type	Method and Description
StateListener.Type	getType() Get the listener type.
void	onStateEnter(State previous, Event event, State current) The state was entered.
void	onStateExit(State current, Event event, State next) The state was exited.

Method Detail

getType

StateListener.Type getType()

Get the listener type.

Returns:

the type

onStateEnter

void onStateEnter(State previous,
                Event event,
                State current)

The state was entered.

Parameters:

previous - the previous state

event - the event

current - the current state

onStateExit

void onStateExit(State current,
               Event event,
               State next)

The state was exited.

Parameters:

current - the current state

event - the event

next - the next state