How do you setup a navigation rule based on a function with parameters in SEAM ?
For example
<page view-id="/firstPage.xhtml" back="enabled">
<navigation from-action="#{actionBean.fetchItem(int index)}">
<redirect view-id="/itemDetail.xhtml" />
</navigation>
</page>
It is possible,
But... from-action signature must match your commandButton, commandLink, etc action attribute
Suppose your command is shown as follows
<h:commandButton action="#{actionBean.fetchItem(index)}" value="Submit index"/>
...
Now your navigation
<page view-id="/firstPage.xhtml" back="enabled">
<navigation from-action="#{actionBean.fetchItem(index)}">
<redirect view-id="/itemDetail.xhtml" />
</navigation>
</page>