RichFaces “columns” tag doesn’t display columns

The RichFaces manual show this example on using the “columns” tag:

<rich:dataTable value="#{capitalsBean.capitals}" var="cap">
<rich:columns value="#{capitalsBean.labels}" var="col" index="index">

<h:outputText value="#{cap[index]}" />

</rich:columns>

</rich:dataTable>

There is no corresponding sample Java code.

That’s very unfortunate, since in the absence of any better documentation, the natural thing to expect is that “capitalBeans.labels” would be a DataModel object, just as it is for the table itself. And it isn’t.

The model for columns is a simple ordered collection, such as a List.