Example: Iterate over the children using a predicate
In this example, we iterate over a predicate instead of the children of a container. We want to iterate over Robert's favorite animals, since he has four. We specify the 'favoriteAnimal' predicate using the 'containment' attribute. This causes the <member> tag to iterate over that predicate.
<vbox datasources="animals.rdf" ref="http://www.some-fictitious-zoo.com/humans/robert"
containment="http://www.some-fictitious-zoo.com/rdf#favoriteAnimal">
<template>
<rule>
<conditions>
<content uri="?uri"/>
<member container="?uri" child="?child"/>
<triple subject="?child"
predicate="http://www.some-fictitious-zoo.com/rdf#name"
object="?name"/>
</conditions>
<action>
<label uri="?child" value="?name"/>
</action>
</rule>
</template>
</vbox>