org.springframework.statemachine

Interface StateMachine<S,E>

Type Parameters:

S - the type of state

E - the type of event

All Superinterfaces:

Region<S,E>

All Known Implementing Classes:

AbstractStateMachine, DistributedStateMachine, ObjectStateMachine

public interface StateMachine<S,E>
extends Region<S,E>

StateMachine provides an APIs for generic finite state machine needed for basic operations like working with states, events and a lifecycle.

Author:

Janne Valkealahti

Method Summary

Modifier and Type	Method and Description
ExtendedState	getExtendedState() Gets the state machine extended state.
State<S,E>	getInitialState() Gets the initial state S.
StateMachineAccessor<S,E>	getStateMachineAccessor() Gets the state machine accessor.
boolean	hasStateMachineError() Checks for state machine error.
void	setStateMachineError(java.lang.Exception exception) Sets the state machine error.

Methods inherited from interface org.springframework.statemachine.region.Region

addStateListener, getId, getState, getStates, getTransitions, getUuid, isComplete, removeStateListener, sendEvent, sendEvent, start, stop

Method Detail

getInitialState

State<S,E> getInitialState()

Gets the initial state S.

Returns:

initial state

getExtendedState

ExtendedState getExtendedState()

Gets the state machine extended state.

Returns:

extended state

getStateMachineAccessor

StateMachineAccessor<S,E> getStateMachineAccessor()

Gets the state machine accessor.

Returns:

the state machine accessor

setStateMachineError

void setStateMachineError(java.lang.Exception exception)

Sets the state machine error.

Parameters:

exception - the new state machine error

hasStateMachineError

boolean hasStateMachineError()

Checks for state machine error.

Returns:

true, if error has been set