11:08 a.m.
I've been looking into pageflows and come across a number of oddities which, maybe
I'm misunderstand the where's and whens of pageflows, but maybe someone has some
insights.
I have test.xml that contains a bunch of test links with the different ways of starting
page flows :
Using propagation and pageflow inline on an s:link
Annotating the action method with @Begin(pageflow="TestFlow")
A plain action method that starts a page flow manually
Test.xhtml
| <s:link value="inline pageflow with xxx outcome"
action="#{TestAction.stringFunc('xxx')}" propagation="begin"
pageflow="TestFlow"/><br/>
| <s:link value="inline pageflow with 'page1' outcome"
action="#{TestAction.stringFunc('page1')}" propagation="begin"
pageflow="TestFlow"/><br/>
| <s:link value="inline pageflow with 'next' outcome"
action="#{TestAction.stringFunc('next')}" propagation="begin"
pageflow="TestFlow"/><br/>
| <s:link value="annotated pageflow with 'xxx' outcome"
action="#{TestAction.annotatedStringFunc('xxx')}"/><br/>
| <s:link value="annotated pageflow with 'page1' outcome"
action="#{TestAction.annotatedStringFunc('page1')}"/><br/>
| <s:link value="annotated pageflow with 'next' outcome"
action="#{TestAction.annotatedStringFunc('next')}"/><br/>
| <s:link value="Manual PageFlow start in code"
action="#{TestAction.manualStartFlow}"/><br/>
|
|
My bean actions are listed below :
| public String manualStartFlow() {
| log.info("Manual StartFlow called");
| Pageflow.instance().begin("TestFlow");
| return "ManualStartFlow";
| }
|
|
| public String stringFunc(String input) {
| log.info("Called String Func with '#0'", input);
| return input;
| }
|
| @Begin(pageflow="TestFlow")
| public String annotatedStringFunc(String input) {
| log.info("Called annotated String Func with '#0'", input);
| return input;
| }
|
|
I have added the page flow into the components.xml file and written the flow as follows :
| <?xml version="1.0"?>
|
| <pageflow-definition xmlns="http://jboss.com/products/seam/pageflow"
| xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
| xsi:schemaLocation="http://jboss.com/products/seam/pageflow
http://jboss.com/products/seam/pageflow-1.2.xsd"
| name="TestFlow">
|
|
| <start-page name="teststart" view-id="/testpage1.xhtml">
| <transition name="next" to="test2" />
| <transition name="ManualStartFlow" to="test2"/>
| <transition name="page1" to="test1"/>
| <redirect/>
| </start-page>
|
|
| <page name="test1" view-id="/testpage1.xhtml">
| <transition name="next" to="test2" />
| </page>
|
| <page name="test2" view-id="/testpage2.xhtml">
| <transition name="next" to="test3" />
| <transition name="prev" to="test1" />
| </page>
|
| <page name="test3" view-id="/testpage3.xhtml"
| no-conversation-view-id="/meetinglist.xhtml">
| <transition name="prev" to="test2" />
| </page>
|
| </pageflow-definition>
|
Obviosuly, this is testing code which is why page 1 appears in the start-page and test1
page.
The problem is that one of the following happens :
The conversation, and page flow starts but there is no navigation to page 1. This usually
happens when the outcome is 'xxx' from the string function.
If I return "next" or "ManualStartFlow" as the outcome, I end up on
page 2 of the flow
If I return "page1" from the outcome I end up on page 1, probably because of the
transition from start-page to page 'page1'.
Once I am in the pages (testpage1,2 or 3) everything works fine, I just have problems
starting the flow.
In cases where I stay on the same page (test.xhtml) and I end up in a conversation and try
to start a new one I obviously get the Seam Debug Page because of starting a conversation
from an existing one (which is fine). On the debug page, I can see the list of
conversations, and despite not navigating there, they all say testpage1.xhtml in the view
id. This indicates to me that the conversation and flow is starting, it's just not
navigating in cases where I return 'xxx' from the outcome of the methods.
I would have thought that if you click a link, button, or call a method that starts a
pageflow, then you would automatically end up on the view-id referenced by the start-page
definition (in this case testpage1). Currently it looks like I need to return an outcome
that will determine where you go automatically from the page-start view id, and not
returning an expected outcome results in staying on the same page.
Is that the case?
DG
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4038030#...
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...