Better ability to introspect flow transitions [SWF-43] about spring-webflow HOT 1 CLOSED

Erwin Vervaet commented

First, we can't easily provide a 'getEventId' method on the Transition class since it's the matching TransitionCriteria that are responsible for transition matching and there is no guarantee that you're using an EventIdTransitionCriteria. If you are using a EventIdTransitionCriteria, you could do:

Transition t = ...;
String eventId = ((EventIdTransitionCriteria)t.getMatchingCriteria()).getEventId();

In JSP EL the casting would go away so you'd be able to do ${transition.matchingCriteria.eventId}. That seems reasonable.

Secondly, the transition class already has a matches(RequestContext) method. An easy way to get the behaviour you want is to write a RequestContextWrapper that delegates all calls except for getLastEvent() to the wrapped RequestContext. The getLastEvent() method just returns the event you'd like to test.

from spring-webflow.