By the way, here is an example of a page flow:
<process-definition name="shopping">
|
| <start-state name="start">
| <transition to="browse"/>
| </start-state>
|
| <page name="browse" view-id="/browse.xhtml">
| <transition name="browse" to="browse"/>
| <transition name="checkout" to="checkout"/>
| </page>
|
| <page name="checkout" view-id="/checkout.xhtml">
| <transition name="checkout" to="checkout"/>
| <transition name="complete" to="complete"/>
| </page>
|
| <page name="complete" view-id="/complete.xhtml">
| <end-conversation />
| </page>
|
| </process-definition>
This replaces the role of JSF navigation rules, for applications with complex
user interactions.
But you can do more than that - Here is an example where the page flow also
takes on the role of calling actions:
<process-definition name="shopping">
|
| <start-state name="start">
| <transition to="browse"/>
| </start-state>
|
| <page name="browse" view-id="/browse.xhtml">
| <transition name="addToCart" to="browse">
| <action expression="#{cart.add}" />
| </transition>
| <transition name="checkout" to="checkout"/>
| </page>
|
| <page name="checkout" view-id="/checkout.xhtml">
| <transition name="update" to="checkout">
| <action expression="#{cart.update}" />
| </transition>
| <transition name="complete" to="validate"/>
| </page>
|
| <decision name="validate" expression="#{cart.purchase}">
| <transition name="success" to="complete"/>
| <transition name="failed" to="checkout"/>
| </decision>
|
| <page name="complete" view-id="/complete.xhtml">
| <end-conversation />
| </page>
|
| </process-definition>
In this case, your action listeners would no longer be known to the view. The
view would only know the logical transition names in the jPDL file.
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3915340#3915340
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