spring-statemachine 2.3.1-如何从StateMachineModelFactory获得StateMachine？

Question

public class MyStateMachineConfig extends StateMachineConfigurerAdapter<String, String>
{
  @Override
  public void configure(StateMachineModelConfigurer<String, String> model) throws Exception
  {
    model.withModel().factory(myStateMachineModelFactory());
  }

  @Bean
  public StateMachineModelFactory<String, String> myStateMachineModelFactory()
  {
    return new UmlStateMachineModelFactory("classpath:my.uml");
  }
  ....

Answer 1

StateMachineFactory的配置如下所示

@Configuration
@EnableStateMachineFactory
public static class SsmConfig
        extends EnumStateMachineConfigurerAdapter<States, Events> {

    @Override
    public void configure(StateMachineStateConfigurer<States, Events> states)
            throws Exception {
        states
            .withStates()
                .initial(States.S1)
                .end(States.SF)
                .states(EnumSet.allOf(States.class));
    }

}

然后，您可以简单地将StateMachineFactory到处注入，只需获取状态机。

class SomeService {

    @Autowired
    private StateMachineFactory<States, Events> factory;

    void method() {
        StateMachine<States,Events> stateMachine = factory.getStateMachine();
        stateMachine.start();
    }
}

更多信息可以在这里找到。