> Hi everyone, > > I have a case in my application where I would like to be able to decide > real-time to which use case to forward next. To explain my problem in a > bit more details: I have something like a wizard which contains a > dynamic number of steps. Instead of modelling each possible combination > I would like to have some sort of dynamic forwarding. This means that > for instance a method on the controller class is called getNextUseCase() > which returns the id of the use case to which I want to forward. > > Because every use case is defined as a global forward this should > technically be possible?! Is there a way to model such a situation? > > The only solution I can think of right now is to have a seperate use > case "determine next use case" which contains a decision point and an > exit state for each possible next use case. Then each use case (that is > part of the wizard) forwards to this use case and then this specific use > case determines the next and picks the right one. The only drawback is > that for each new use case I would also have to change this specific use > case that determines the possible next step? Any ideas? >
what you could do is write a method that allows to take a parameter and map it to a forward (to which is actually forward control), this can be a static method somewhere in a helper class next what you can do is make the final states forward control to an external resource, you can do that by entering a value like http://www.mysite.com/resource instead of the name of the target use-case (there was a jira issue about this that I implemented a while back: http://team.andromda.org:8080/jira/ViewIssue.jspa?key=BPM-96) make it point to something that will handle the lookup and execution of the appropriate forward, this could be a servlet that simply calls your static method that way you don't need to change anything when adding a new use-case, as long as the global forward is known in the struts-config.xml your static method should be able to resolve it and forward control to it does this make sense ? let me know otherwise.. good luck -- Wouter ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl _______________________________________________ Andromda-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/andromda-user
