[javatwo]

Different from JSP,  facelet tries to evaluate value binding even if component is not rendered.

<h:dataList var="bean" ... >

<h:outputText  value="#{bean.title}  #{bean.name}" rendered="#{bean.professor}"  />

<h:outputText  value="#{bean.name}" rendered="#{bean.student}"  />

</h:dataList>

javax.el.ELException: /person.xhtml: Property 'title' not found on type mypackage.Student

at com.sun.facelets.compiler.AttributeInstruction.write(AttributeInstruction.java:53)
      at com.sun.facelets.compiler.UIInstructions.encodeBegin(UIInstructions.java:39)
      at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:232)
      at com.sun.faces.renderkit.html_basic.GroupRenderer.encodeChildren(GroupRenderer.java:106)
      at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:837)
      at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:234)

----------------

The title has getter only, no setter.

When bean is a student, #{bean.professor} is false, so #{bean.title} should not be evaluated as JSP does.

Is there a way to work around this? Thanks for help.

Dave

[nbelaevski]

Check whether you have #{bean.title} specified outside components.

[javatwo]

I put <ui.fragment rendered="#{bean.professor}">  around, the problem solved.

Now I get another error:

<t:dataList var="car"
     value="#{storeBean.carList}" >  

   <f:subview>
    <ui:include src="/detail.xhtml" >
     <ui:param name="bean" value="#{car}" />
    </ui:include>
   </f:subview>

</t:dataList>

javax.el.PropertyNotFoundException: Target Unreachable, identifier 'bean' resolved to null

the initial page is rendered correctly by GET method, But when clicking a command button inside the /detail.xhtml,  I got the error above.

From debug, the storeBean.getCarList() returned 2 cars during render phase, the command did not change the carList as expected. but the bean resolved to null in the dataList during render phase.  JSP version worked without error.

Thanks for help.

Dave

[javatwo]

I like to create a bug for this, but could not find its issue tracker website. Anyone knows where is the issue tracker for facelet?

Thanks,
Dave

[nbelaevski]

Dave,

It's here: http://java.net/jira/browse/FACELETS

[henk53]

This is maybe not the place to discuss this, but you are mixing up component tree building and run time processing of components. In JSF, some tags help to create the tree, others become components. Components can be run-time evaluated by e.g. the dataList, but those helper tags just disappear.

I suggest posting a question on a site more suited to this kind of problem, like stackoverflow. Explain what you are trying to achieve and show both your JSP and Facelets versions.