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Example: Generate a list of items using a binding
This template demonstrates the difference between the triple and binding elements. The first box uses a triple for matching a person's last name. Sarah's last name is not specified in the datasource, so she will not match the conditions. However, in the second box, she does appear since a binding is used instead. The binding allows variables to be assigned values without preventing the condition from matching if a value was not found.
<vbox style="border: 1px solid red;"
datasources="animals.rdf" ref="http://www.some-fictitious-zoo.com/humans">
<template>
<rule>
<conditions>
<content uri="?uri"/>
<member container="?uri" child="?human"/>
<triple subject="?human"
predicate="http://www.some-fictitious-zoo.com/rdf#name"
object="?name"/>
<triple subject="?human"
predicate="http://www.some-fictitious-zoo.com/rdf#lastName"
object="?lastname"/>
</conditions>
<action>
<label uri="?human" value="?name ?lastname"/>
</action>
</rule>
</template>
</vbox>
<vbox style="border: 1px solid blue;"
datasources="animals.rdf" ref="http://www.some-fictitious-zoo.com/humans">
<template>
<rule>
<conditions>
<content uri="?uri"/>
<member container="?uri" child="?human"/>
<triple subject="?human"
predicate="http://www.some-fictitious-zoo.com/rdf#name"
object="?name"/>
</conditions>
<bindings>
<binding subject="?human"
predicate="http://www.some-fictitious-zoo.com/rdf#lastName"
object="?lastname"/>
</bindings>
<action>
<label uri="?human" value="?name ?lastname"/>
</action>
</rule>
</template>
</vbox>