com.hotels.styx.common

Class StateMachine<S>

java.lang.Object

com.hotels.styx.common.StateMachine<S>

Type Parameters:

S - state type

public final class StateMachine<S>
extends Object

A general-purpose state-machine.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	StateMachine.Builder<S> StateMachine builder.

Method Summary

Modifier and Type	Method and Description
S	currentState() Returns the current state.
void	handle(Object event) Handles an event by performing the a state transition and side-effects associated with the event's type.
void	handle(Object event, String loggingPrefix) Handles an event by performing the a state transition and side-effects associated with the event's type.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

currentState

public S currentState()

Returns the current state.

Returns:

current state

handle

public void handle(Object event,
                   String loggingPrefix)

Handles an event by performing the a state transition and side-effects associated with the event's type.

Parameters:

event - an event

loggingPrefix - a prefix to prepend to the beginning of log lines

handle

public void handle(Object event)

Handles an event by performing the a state transition and side-effects associated with the event's type.

Parameters:

event - an event