Handling errors on page flows

[kasim]

Ok maybe i am just missing it here.

I am trying to create a fairly simple page flow definition. And i am using page flows because it could eventually get more complicated based on a substance.

But how do i handle error validations?

<page name="loader-information" view-id="/loadCollection.xhtml">
 <transition name="next" to="substances-load">
 <action expression="#{loadConfigSvc.saveLoadConfig()}"/>
 </transition>
 <transition name="cancel" to="cancel"></transition>
</page>

So i have that saveLoadConfig can return a boolean false if it fails to validate and saves a message ot the facesmessages.

Well ... when i run it it naturally goes to the next page.

I know i can handle global exceptions for it in the pages code, but really i just want it to go back on itself and redisplay the same page. Can i use rules with the actions? Like we do in pages.xml?

Or do i need to make a decision node instead?

[kukeltje]

decisionnode will always work (afaik). Not sure about rules etc...

[kasim]

kukeltje>

Thanks yeah i may do that for now.

But it seems like there has to be another easy way. Almost every page has some kind of validation i need to call itself back on.