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spring-projects / spring-statemachine

Spring Statemachine is a framework for application developers to use state machine concepts with Spring.
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Perform some actions before evaluating guards #1120

Open JaspreetChhabra opened 1 year ago

JaspreetChhabra commented 1 year ago

I am trying to find a way to perform actions before the guards are evaluated like want to add API response into the extended state object which is triggered for a specific State and event and based on that response want to evaluate the guards. But I am unable to find any listener or interceptor that serves the purpose.

I am new to spring boot state machine. Can somebody please help?

@Override public void configure( StateMachineTransitionConfigurer<RedactionStates, RedactionEvents> transitions) throws Exception { transitions .withExternal() .source(RedactionStates.R1) .target(RedactionStates.R2) .event(RedactionEvents.E1) .action(c -> { // Make the API Call // Store in the extended state }) .guard(new G1(COMPLETED)) .and() .withExternal() .source(RedactionStates.R1) .target(RedactionStates.R3) .event(RedactionEvents.E1) .guard(new G2(SKIPPED)) .and() .withExternal() .source(RedactionStates.R1) .target(RedactionStates.R4) .guard(new G3(IN_PROGRESS)); }