Jiri Slovak created MYFACES-4074:
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Summary: MyFaces + Primefaces: Dynamic ui:include + UIData (with
rowStatePreserved) rendering problem
Key: MYFACES-4074
URL: https://issues.apache.org/jira/browse/MYFACES-4074
Project: MyFaces Core
Issue Type: Bug
Components: JSR-314
Affects Versions: 2.2.11
Reporter: Jiri Slovak
There is a situation where UIData with rowStatePreserved is not rendered.
NullPointer exception is thrown in this case.
The example of such situation is:
we have index.xhtml with ui:include with src attribute as expression
<h:form>
<h:panelGrid columns="1" bodyrows="3">
<p:commandLink
action="#{mainFrameBean.setMenu('iframe1.xhtml')}" process="@this"
update=":mainframe">Frame 1</p:commandLink>
<p:commandLink
action="#{mainFrameBean.setMenu('iframe2.xhtml')}" process="@this"
update=":mainframe">Frame 2</p:commandLink>
<p:commandLink
action="#{mainFrameBean.setMenu('iframe3.xhtml')}" process="@this"
update=":mainframe">Frame 3</p:commandLink>
</h:panelGrid>
</h:form>
<p:outputPanel id="mainframe">
<ui:include src="/frames/#{mainFrameBean.menuValue}" />
</p:outputPanel>
we have datagrid coded in iframe2.xhtml
<p:dataGrid var="car" value="#{dataGridView.cars}" columns="3" layout="grid"
rows="12" paginator="true" id="cars" rowStatePreserved="true"
paginatorTemplate="{CurrentPageReport} {FirstPageLink}
{PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink}
{RowsPerPageDropdown}"
rowsPerPageTemplate="6,12,16">
<f:facet name="header">
Cars for Sale
</f:facet>
<p:panel header="#{car.id}" style="text-align:center">
<h:outputText value="#{car.year}" />
</p:panel>
</p:dataGrid>
Then if you click "Frame 2" commandlink you get nullpointer returned in the
partial response XML.
The problem is UIData incorrectly handles initial descendant state during the
render response phase.
I`ve prepared testapp code in github as an exapmle:
https://github.com/slovi/myfaces_primefaces_uidata_issue
(link 4 does not work correctly with myfaces, but works well with Mojarra).
It seems the problem is that MyFaces sets initial state during the render
response phase (in case of partial request), whilst Mojarra sets
markInitialState during the build phase.
Jiri
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