5.1.1.2. Navigation (Seam 1.2.1)

[bsmithjj]

In section 5.1.1.2. Navigation in the Seam documentation, there is the following example:

<page view-id="/editDocument.xhtml">

 <navigation from-action="#{documentEditor.update}">
 <rule if="#{documentEditor.errors.empty}">
 <redirect view-id="/viewDocument.xhtml"/>
 </rule>
 </navigation>

</page>

that is intended to help us avoid "(polluting) our DocumentEditor component with string-valued return values (the JSF outcomes)." I've looked through the samples and I can't find a concrete example of this navigation rule. Does this rule imply that a field named errors exists on the bean documentEditor? Furthermore, the Object represented by errors has a field named empty?

Thanks,
Brad Smith

[pmuir]

"bsmithjj" wrote:
Does this rule imply that a field named errors exists on the bean documentEditor? Furthermore, the Object represented by errors has a field named empty?

Strictly yes, but we can infer that documentEditor has a property which is a Collection called errors (and Collection has the isEmpty() method).