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Editorial Team
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Asked: 2026-06-04T22:36:54+00:00

I have a ui:repeat. I want it to refresh for every 5 seconds. I

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I have a ui:repeat. I want it to refresh for every 5 seconds. I tried p:poll but it doesnt work. Is there any way to make this working?

<ui:repeat value="#{videoImpl.fGetAllComments()}" var="v" id="commentlist">
<div class="comment-entry"><h:outputText value="#{v.comment}"/></div>
</ui:repeat>

<p:poll update="commentlist" interval="5" />
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1 Answer

  1. Editorial Team

    The <ui:repeat> doesn’t generate any HTML by itself. So there is no element with id="commentlist" in the HTML output and hence the JS code behind <p:poll> can’t find anything to update.

    Wrap it in another JSF component which renders a fullworthy HTML element, such as <h:panelGroup>, and update it instead.

    <h:panelGroup id="commentlist">
    <ui:repeat value="#{videoImpl.fGetAllComments()}" var="v">
        <div class="comment-entry">#{v.comment}</div>
    </ui:repeat>
</h:panelGroup>

<p:poll update="commentlist" interval="5" />
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