SAGA - private properties null accros @SagaEventHandler methods

Axon Framework
,
1

Hello,

The properties are null accros @SagaEventHandler methods

The First @SagaEventHandler on(NeedExpressedEvent needExpressedEvent) sets the private fields operationId and planningId .

But in the second @SagaEventHandler on(DatesAddedToPlanningEvent datesAddedToPlanningEvent) operationId property is null.

@Saga
public class MySaga {

    @Autowired
    private transient CommandGateway commandGateway;
    private OperationId operationId;
    private PlanningId planningId;

    public static final String OPERATION_ID_ASSOCIATION = "operationId";
    public static final String PLANNING_ID_ASSOCIATION = "planningId";

    @StartSaga
    @SagaEventHandler(associationProperty = OPERATION_ID_ASSOCIATION )
    public void handle(NeedExpressedEvent needExpressedEvent, UUIDProvider uuidProvider){
        System.out.println("Saga  start !!!");
        this.operationId = needExpressedEvent.getOperationId();
        this.planningId = needExpressedEvent.getPlanningId();
        SagaLifecycle.associateWith(PLANNING_ID_ASSOCIATION, planningId.toString());
        commandGateway.send(new AddDatesToPlanningCommand(planningId,needExpressedEvent.getDebut(),needExpressedEvent.getFin()));
    }

    @SagaEventHandler(associationProperty = PLANNING_ID_ASSOCIATION)
    public void handle(DatesAddedToPlanningEvent datesAddedToPlanningEvent){
        System.out.println("operation Id " + this.operationId);
        commandGateway.send(new UpdateStateCommand(this.operationId, Etat.INFO_DO_OK));
    }

    @SagaEventHandler(associationProperty = OPERATION_ID_ASSOCIATION)
    public void handle(StateUpdatedEvent stateUpdatedEvent){
        System.out.println("Saga stop !!!");
        SagaLifecycle.end();
    }

}

Could you help me ?

2

Hi Vincent, could it be you use Jackson, in which case private fields might not be serialized? The easiest fix, in that case, would be to add getters for the private fields.

3

Hi Gerard,

Yes, I use Jackson
I add getters and it’s work perfectly !
Thanks a lot !