variable as commandButton's action and xxx.page.xml

[subaochen]

Hi all,

I have a commandButton in a snippet xhtml like this:

<h:commandButton action="#{bean[action]}" />

the bean and action are from:

<ui:include src="path_to_commandButton_snippet">
    <ui:param name="bean" value="MyBean"/>
    <ui:param name="action" value="edit"/>
</ui:include>

And in page.xml, I have defined the rule like this:

    <navigation from-action="#{MyBean.edit}">
        <rule if-outcome="ok">
            <redirect view-id="/AnotherPage.xhtml">
                <message>OK</message>
            </redirect>
        </rule>
    </navigation>

But I noticed that, MyBean.edit is called, but can not navigated to AnotherPage.xhtml.

If commandButton call MyBean.edit directly like this:

<h:commandButton action="#{MyBean.edit}" />

will go to AntherPage.xhtml after MyBean.edit result in ok.

Anybody can give me some hints why indrect call to MyBean.edit will passby page.xml? Thanks in advance!

[subaochen]

I'm sorry, the last sentence means, why indirect call to MyBean.edit will bypass xxx.page.xml? thanks!

[subaochen]

I think it is because Seam Rule resolver can not understand EL expression #{bean[action]}, but only understand #{MyBean.edit}.

I have traced into Pages.java(org.jboss.seam.navigation):


`
   public boolean navigate(FacesContext context, String actionExpression, String actionOutcomeValue)
   {
      String viewId = getViewId(context);
      if (viewId!=null)
      {
         List<Page> stack = getPageStack(viewId);
         for (int i=stack.size()-1; i>=0; i--)
         {
            Page page = stack.get(i);
            Navigation navigation = page.getNavigations().get(actionExpression);
            if (navigation==null)
            {
               navigation = page.getDefaultNavigation();
            }
           
            if ( navigation!=null && navigation.navigate(context, actionOutcomeValue) ) return true; 
           
         }
      }
      return false;
   }`



but can not get why #{bean[action]} can not be understood?  Any help? Thanks!