[jboss-user] [JBoss Seam] - Re: Problems Starting Page Flows

[Delphi's Ghost]

Hey Peter, thanks for the reply.

I changed my page flow to use : 


  | 	<start-state name="teststart">
  | 		<transition to="test1"/>
  | 	</start-state>
  | 	
  | 
  | 	<page name="test1" view-id="/testpage1.xhtml">
  | 		<transition name="next" to="test2" />
  | 	</page>
  | 

and when I click my links I get  : 

pageflow is not currently at a <page> or <start-page> node 
  | (note that pageflows that begin during the RENDER_RESPONSE phase should use <start-page> instead of <start-state>)

Which I had already tried. 

So, I think most of my cases involve going to a new page when I start a flow, therefore, I need to use start-state, hence thereforth, I need to determine how to start a page flow that is compatable with the start-state syntax.

After a bit of messing around, browsing the examples (DVD Store checkout flow) it looks like I have it working.

(Steps included for the benefit of the next poor soul with this problem)

I added a function which returns void, and annotate it with the begin(pageflow). I also added one without the annotation so I could test the inline pageflow/conversation starters  : 


  | 	@Begin(pageflow="TestFlow")
  | 	public void annotatedVoidFunc() {
  | 		log.info("Annotated Voidfunc Called");		
  | 	}
  | 	
  | 	public void voidFunc() {
  | 		log.info("Voidfunc Called");		
  | 	}
  | 
  | 

In my page, I created new links  : 


  | <s:link value="Annotated Void Func" action="#{TestAction.annotatedVoidFunc}"/><br/>		   
  | <s:link value="inline Void Func" action="#{TestAction.voidFunc}" propagation="begin" pageflow="TestFlow"/><br/>		  		   
  | 

I compiled, deployed, ran, and both links work fine.  

So, I guess if you want to jump to the first page of the pageflow and have navigation handled for you by the page flow, you need to use a void function that doesn't return a string. 

I have to confess, I am a little unclear on how action methods are handled when they return void vs returning null vs returning a string. From this example, it seems that it does make a difference.

Thanks again peter, 

DG





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