CODEWITHSUNDEEP
javaspringspring-statemachine
Taoist
Taoist

Reputation: 341

Manual build of State machine

I have a statemachine using Spring, this is constructed using annotations

@Configuration
@EnableStateMachine
class StateMachineConfiguration extends
    StateMachineConfigurerAdapter<State, Event> {

(For the states/transitions)

and a number of handler classes for the actions

@WithStateMachine
public class AwaitingData {

@OnStateEntry(target = "AwaitingData")
public void onEntry() {

I want to build this statemachine manually so I can test various aspects. I do not want to duplicate the configuration for the test, I want to use the "real" config. I can easily build the machine using the StateMachineBuilder and my configuration class

private StateMachine<State, Event> buildStateMachine() {
    StateMachineConfiguration config = new StateMachineConfiguration();
    StateMachineBuilder.Builder<State, Event> builder = StateMachineBuilder.builder();
    config.configure(builder.configureStates());
    config.configure(builder.configureTransitions());
    return builder.build();
}

but... How do I now add the actions? I want to add specific actions (depending on the specific test) with mocks, etc.

I have stepped through the library as it configures the machine but I still can't see where/how the annotated functions are added. Google is little help, usually sending me straight to the Spring docs which don't seem to cover my use case.

Upvotes: 3

Views: 562

Answers (1)

Janne Valkealahti
Janne Valkealahti

Reputation: 2646

I created gh462 to polish docs.

Essentially as @WithStateMachine is a spring application context integration, you need to make machine aware of a BeanFactory. Manual builder were added so that people can use machine outside of a normal spring app context and bean model. Before I get docs polished, see from MethodAnnotationWithBuilderTests how this can be done.

Upvotes: 1

Related Questions