[jbossseam-issues] [JBoss JIRA] Created: (JBSEAM-4120) pages-2.1.xsd doesn't allow parameterized from-action

[Bob Shanahan (JIRA)]

pages-2.1.xsd doesn't allow parameterized from-action
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                 Key: JBSEAM-4120
                 URL: https://jira.jboss.org/jira/browse/JBSEAM-4120
             Project: Seam
          Issue Type: Bug
          Components: Core
    Affects Versions: 2.1.1.GA
         Environment: OSX 10.5, Java 1.5, JBoss 4.2.3, Eclipse 3.4
            Reporter: Bob Shanahan


Prior to upgrading from Seam 2.0.x to 2.1.x, it was possible to define (without schema validation error) a page navigation from-action using page parameter variables. In fact, it was the only way get parameterized page from-actions to work.

Given the following xhtml:

<ui:include src="exportsTitleBar.xhtml">
   <ui:param name="title" value="#{messages.acctSummaryTitle}" />
   <ui:param name="exportActionBean" value="#{acctManager}" />
   <ui:param name="action" value="exportAcctSummary" />
</ui:include>

page navigation in pages.xml is defined as follows:

<page view-id="/view/acctSummary.xhtml">
   <navigation from-action="#{exportActionBean[action]}">
      <rule if-outcome="pdf">
         <redirect view-id="/view/pdf/acctSummary.xhtml"/>
      </rule>
      <rule if-outcome="xls">
         <redirect view-id="/view/xls/acctSummary.xhtml"/>
      </rule>
   </navigation>
</page>

Using the actual bean and action, as in <navigation from-action="#{acctManager.exportAcctSummary]}">, does not work. 

While <navigation from-action="#{exportActionBean[action]}"> functions correctly with Seam 2.1.x, the pages-2.1.xsd produces a schema validation error due to restrictions of the from-action-expression... and ultimately the pages:method-expression, which is defined as follows:

<xs:simpleType name="method-expression">
   <xs:restriction base="xs:token">
      <xs:pattern value="#\{.+\..+\}"/>
   </xs:restriction>
</xs:simpleType>

Either the page navigation from-action should be expressible via the actual bean and action or the method-expression should allow specification of a parameterized bean and action.

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