Action Implementation in Spring Webflow 2

Question

I'm trying to implement a SWF action like this:

@Component(value = "initializeProjectsTestingFormAction")
public class InitializeProjectsTestingFormAction implements Action {

    @Autowired
    private ProjectsBo projectsBo;

    @Override
    public Event execute(RequestContext requestContext) throws Exception {
        ProjectsTestingForm projectsTestingForm = (ProjectsTestingForm) requestContext.getFlowScope().get("projectsTestingForm");

        EndUse selectedEndUse = (EndUse) requestContext.getFlowScope().get("selectedEndUse");
        projectsTestingForm.setProjects(projectsBo.findImplementableProjectsForTesting(selectedEndUse));

        return new Event("", "initializeProjectsTestingFormAction");
    }
}

It currently works fine when the flow invokes the action, but I feel slightly unsettled about the Event that the action have to return. Does anybody knows what the Event is and what could affect to the flow behavior depending on its values (source and id)?

I was reading the documentation but I'm not able to understand at all and answer myself the question:

http://static.springsource.org/spring-webflow/docs/2.3.x/javadoc-api/index.html http://static.springsource.org/spring-webflow/docs/2.3.x/javadoc-api/org/springframework/webflow/execution/Event.html

Thanks in advance.

pap pap · Accepted Answer · 2012-09-25T14:52:39

The id of the event (second parameter of the constructor) should correspond to the on attribute of the transition that should be taken after the action is invoked.

Action Implementation in Spring Webflow 2

1 Answers