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https://issues.apache.org/jira/browse/MYFACES-2758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12879933#action_12879933
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Jakob Korherr commented on MYFACES-2758:
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Yes, of course this is understandable - thanks for the bugreport :)
I think your workaround is the best fix for this issue. Otherwise we will run
into a lot of problems that are similar like this one. I will commit the
proposed solution soon ;)
> DebugPhaseListener tries to get value from unrendered component where value
> is unavailable
> ------------------------------------------------------------------------------------------
>
> Key: MYFACES-2758
> URL: https://issues.apache.org/jira/browse/MYFACES-2758
> Project: MyFaces Core
> Issue Type: Bug
> Components: Extension Feature
> Affects Versions: 2.0.2-SNAPSHOT
> Environment: myfaces core trunk
> Reporter: Martin Koci
>
> When in Develepment stage DebugPhaseListener collects useful information
> about component tree. But there is a problem with construction like this
> (example is from a real application based on ADF API) :
> <h:dataTable
> value="#{queryModel.currentDescriptor.conjunctionCriterion.criterionList}"
> var="node">
> <h:column>
> <h:selectOneMenu rendered="#{node.attributeCriterion and
> node.removable}" value="#{node.operator}">
> <f:selectItems value="#{node.operators}" />
> </h:selectOneMenu>
> </h:column>
> </h:dataTable>
> please note that selectOneMenu is rendered only if node is AttributeCriterion
> because only AttributeCriterion class has property "operator". But
> DebugPhaseListener tries to get value for every row in DataTable even it is
> not rendered - it leads in this case to exception:
> javax.el.PropertyNotFoundException: The class
> 'com.company....ConjunctionCriterion' does not have the property 'operator'
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