Getting Started with Spring State Machine

In this video, I introduce you to Spring State Machine. Learn what a State Machine is. You will see how to configure Spring State Machine and use Spring Boot to persist data to an in memory database (Via Spring Data JPA).

[angeloamati]

thanks soooo much, this is exaclty what i need. Thanks god people like u exist and 'invest' thier time to distribute knowledge

[senior_hatrik]

Omg. This is the best explanation of Spring State Machine ever. Thanks for your professional videos on Spring!

[poeticsense]

@Spring Framework Guru - Excellent Tutorial on Spring State Machine. **btw noticed 1:00:51 - 1:05:40 - section on sendEvent() is a repeat.

[RabbleInArms]

Thanks for sharing this. I'm sure you could develop an entire course around all the features of SSM. I look forward to it!

[RajaPandianCRP]

Thumbs Up to this video. I was working on a use case and this video helped me with the needed information. Thank you!

[wtfogafrospice]

I bought two of your courses on udemy because of this video. Keep up the great work

[satamguin]

Thank you for the video ... Awesomely described and able to make a small project out of this. Again simply WOW 😊

[sandeepkumar-bljb]

Very good demo explained the concepts clearly

[krlsdu]

Can you show others features from ssm, like guard, trigger, fork and join? Thank you and great job!

[khileshsahu]

Can we use Spring Statemachine for micro service based architecture where output of each service can considered as a state. If possible please share any example or reference.

[TomSeidelDresden]

A great source to get started.
One question: It seems to me a bit strange to send an event from within an action, cause as far as i understood, the actions should be state-agonistic so that they can be reused in different transitions.
Why arent't you using a guard for checking the amount? - Seems to me the cleaner approach.

[kennethcarvalho]

In what context is this feature used within a SB application?

[jakobsaternus]

There is now repository support in Spring SM.

[MahmoodAl-haddad]

I feel like the order of the transition config could be order in an easier to understand manner. If I am not mistaken, basically the configuration translates to:

If the specified EVENT was called, and the state is SOURCE, then do this ACTION and change the state to the TARGET. So a better order would be:


I feel like this is much more readable. That aside, thanks a lot for the video! It made this overwhelming concept much easier.

[ajayjumbad]

Hi John,
Whenever I'm trying to run the Junit test for StateMachineConfigTest class I'm getting
for this line in my application:


StateMachine<PaymentState, PaymentEvent> sm =


I've Autowired the StateMachineFactory

[adilod]

I am getting an error where I am unable to transition to Autorize. Can anyone share the code base link on github ?

[brunodz]

thanks, it helps me understand a lot.

[ItIsHidden]

Is it possible to use Spring Statemachine without spring? e.g. in Quarkus?

[lsaackrpruto]

35:35 Unit test, can you do a tutorial on unit tests?

[mauriciotoledo]

Where's the state stored? Do we need persistence, redis?