<f:facet> tag not rendered

Question

<h:form>
    <h:dataTable value="#{run.runList}" var="eachRun"
        columnClasses="columnRun" id="runList">
        <h:column>
            <f:facet name="run_header">
                <h:outputText value="Environment-Application-Department-StartTime"/>
            </f:facet>
            <h:commandLink action="#{run.runChosen}">
                <f:setPropertyActionListener target="#{run.chosenRunID}"
                    value="#{eachRun.testRunID}" />
                <h:outputText value="#{eachRun.toString()}" />
            </h:commandLink>
        </h:column>
    </h:dataTable>
</h:form>

This block of code is within a <ui:define> The column of command links is rendered just fine. However, the <f:facet> is not rendered. I tried to inspect element in the produced page. There is not even a <tr> before the first command link.

Answer 1

Use <f:facet name="header"> instead of <f:facet name="run_header">

http://www.mkyong.com/jsf2/jsf-2-datatable-example/