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Editorial Team
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Asked: 2026-05-27T04:54:38+00:00

I am using JSF 2.0 and PrimeFaces 2.2.1. In my template.xhtml, I have a

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I am using JSF 2.0 and PrimeFaces 2.2.1. In my template.xhtml, I have a ui:insert component:

<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:p="http://primefaces.prime.com.tr/ui">
   <h:head>
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
      <title>A page</title>
   </h:head>

   <h:body>
      <ui:insert name="content"></ui:insert>
   </h:body>
</html>

In myPage.xhtml which uses the above template, I defined a <p:layout> component as following:

<ui:composition xmlns:ui="http://java.sun.com/jsf/facelets"
                template="./../template/template.xhtml"
                xmlns:h="http://java.sun.com/jsf/html"
                xmlns:p="http://primefaces.prime.com.tr/ui"
                xmlns:f="http://java.sun.com/jsf/core">

   <ui:define name="content">
      <p:layout>
         <p:layoutUnit position="center">  
            Center unit
         </p:layoutUnit>

         <p:layoutUnit position="right" collapsible="true">  
            Right unit
         </p:layoutUnit>  
      </p:layout> 
   </ui:define>

</ui:composition>

When I opened myPage.xhtml, I saw “Center unit” and “Right unit” but I didn’t see any layout rendered.

However, when I tried to put the <p:layout> component inside the template as following:

<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:p="http://primefaces.prime.com.tr/ui">
   <h:head>
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
      <title>A page</title>
   </h:head>

   <h:body>
      <p:layout>
         <p:layoutUnit position="center">  
            <ui:insert name="center"></ui:insert>
         </p:layoutUnit>

         <p:layoutUnit position="right" collapsible="true">  
            <ui:insert name="right"></ui:insert>
         </p:layoutUnit>  
      </p:layout> 

   </h:body>
</html>

everything works perfectly. Any pages that use the 2nd template rendered the component as expected.

I’d be very grateful if someone could tell me what I have done wrong with the 1st template.

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1 Answer

  1. Editorial Team

    I don’t believe that it is possible to use <p:layout> within <ui:define>.

    You can use a <ui:insert> within a <p:layoutUnit> however:

    <p:layout>
    <p:layoutUnit position="center">
           <ui:insert name="Center unit" />
    </p:layoutUnit>
    <p:layoutUnit position="right" collapsible="true">
           <ui:insert name="Right unit" />
    </p:layoutUnit>
</p:layout>
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