Package org.springframework.statemachine.service

Class DefaultStateMachineService<S,E>

java.lang.Object

org.springframework.statemachine.service.DefaultStateMachineService<S,E>

Type Parameters:

S - the type of state

E - the type of event

All Implemented Interfaces:

org.springframework.beans.factory.DisposableBean, StateMachineService<S,E>

public class DefaultStateMachineService<S,E>
extends Object
implements StateMachineService<S,E>, org.springframework.beans.factory.DisposableBean

Default implementation of a StateMachineService.

Author:

Janne Valkealahti

Constructor Summary

Constructors

Constructor	Description
DefaultStateMachineService(StateMachineFactory<S,E> stateMachineFactory)	Instantiates a new default state machine service.
DefaultStateMachineService(StateMachineFactory<S,E> stateMachineFactory, StateMachinePersist<S,E,String> stateMachinePersist)	Instantiates a new default state machine service.

Method Summary

Modifier and Type	Method	Description
StateMachine<S,E>	acquireStateMachine(String machineId)	Acquires the state machine.
StateMachine<S,E>	acquireStateMachine(String machineId, boolean start)	Acquires the state machine.
final void	destroy()
protected void	doStop()
protected StateMachine<S,E>	handleStart(StateMachine<S,E> stateMachine, boolean start)
protected StateMachine<S,E>	handleStop(StateMachine<S,E> stateMachine, boolean stop)
boolean	hasStateMachine(String machineId)	Determines if the given machine identifier denotes a known managed state machine.
void	releaseStateMachine(String machineId)	Release the state machine.
void	releaseStateMachine(String machineId, boolean stop)	Release state machine.
protected StateMachine<S,E>	restoreStateMachine(StateMachine<S,E> stateMachine, StateMachineContext<S,E> stateMachineContext)
void	setStateMachinePersist(StateMachinePersist<S,E,String> stateMachinePersist)	Sets the state machine persist.

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultStateMachineService

public DefaultStateMachineService(StateMachineFactory<S,E> stateMachineFactory)

Instantiates a new default state machine service.

Parameters:

stateMachineFactory - the state machine factory

DefaultStateMachineService

public DefaultStateMachineService(StateMachineFactory<S,E> stateMachineFactory,
 StateMachinePersist<S,E,String> stateMachinePersist)

Instantiates a new default state machine service.

Parameters:

stateMachineFactory - the state machine factory

stateMachinePersist - the state machine persist

Method Details

destroy

public final void destroy()
                   throws Exception

Specified by:

destroy in interface org.springframework.beans.factory.DisposableBean

Throws:

Exception

acquireStateMachine

public StateMachine<S,E> acquireStateMachine(String machineId)

Description copied from interface: StateMachineService

Acquires the state machine. Machine from this method is returned started.

Specified by:

acquireStateMachine in interface StateMachineService<S,E>

Parameters:

machineId - the machine id

Returns:

the state machine

See Also:

• StateMachineService.acquireStateMachine(String, boolean)

acquireStateMachine

public StateMachine<S,E> acquireStateMachine(String machineId,
 boolean start)

Description copied from interface: StateMachineService

Acquires the state machine.

Specified by:

acquireStateMachine in interface StateMachineService<S,E>

Parameters:

machineId - the machine id

start - indicating if machine should be returned started

Returns:

the state machine

releaseStateMachine

public void releaseStateMachine(String machineId)

Description copied from interface: StateMachineService

Release the state machine. Machine with this method is stopped.

Specified by:

releaseStateMachine in interface StateMachineService<S,E>

Parameters:

machineId - the machine id

See Also:

• StateMachineService.releaseStateMachine(String, boolean)

releaseStateMachine

public void releaseStateMachine(String machineId,
 boolean stop)

Description copied from interface: StateMachineService

Release state machine.

Specified by:

releaseStateMachine in interface StateMachineService<S,E>

Parameters:

machineId - the machine id

stop - indicating if machine should be stopped

hasStateMachine

public boolean hasStateMachine(String machineId)

Determines if the given machine identifier denotes a known managed state machine.

Parameters:

machineId - machine identifier

Returns:

true if machineId denotes a known managed state machine currently in memory

setStateMachinePersist

public void setStateMachinePersist(StateMachinePersist<S,E,String> stateMachinePersist)

Sets the state machine persist.

Parameters:

stateMachinePersist - the state machine persist

doStop

protected void doStop()

restoreStateMachine

protected StateMachine<S,E> restoreStateMachine(StateMachine<S,E> stateMachine,
 StateMachineContext<S,E> stateMachineContext)

handleStart

protected StateMachine<S,E> handleStart(StateMachine<S,E> stateMachine,
 boolean start)

handleStop

protected StateMachine<S,E> handleStop(StateMachine<S,E> stateMachine,
 boolean stop)