I have a problem with <f:ajax>
on a <h:inputText>
inside <ui:repeat>
. It successfully renders a <h:outputText>
with the new value, but not a <h:inputText>
(both are bound to the same property). However, if I change the <f:ajax>
to render @form
or @all
, it works. But I obviously don't want/need to render the whole form.
I'm using Mojarra 2.2.4. Here's the index.xhtml
<h:form>
<table>
<ui:repeat var="line" value="#{myBean.lines}">
<tr>
<td>
<h:inputText value="#{line.number}">
<f:ajax event="change" execute="@this" render="desc1 desc2" listener="#{myBean.onChangeLineNumber(line)}"/>
</h:inputText>
</td>
<td>
<h:inputText id="desc1" value="#{line.desc}"/>
<h:outputText id="desc2" value="#{line.desc}"/>
</td>
</tr>
</ui:repeat>
</table>
</h:form>
And here's the relevant bit of the @ViewScoped
bean:
public void onChangeLineNumber(Line line)
{
line.setDesc("Some new text " + System.currentTimeMillis());
}
How is this caused and how can I solve it?
This is caused by a bug in state management of Mojarra's <ui:repeat>
which is fixed as per issue 3215 as reported by my fellow Arjan Tijms (actually for a completely different problem, the fix just happens to solve exactly your problem as well). The fix is available in Mojarra 2.2.7 . So upgrading to at least that version should do it.
Otherwise, your best bet is to replace it by a <h:dataTable>
, the component which is designed for exactly the functional requirement of rendering a HTML table based on a collection. It also saves some HTML boilerplate.
<h:form>
<h:dataTable value="#{myBean.lines}" var="line">
<h:column>
<h:inputText value="#{line.number}">
<f:ajax render="desc1 desc2" listener="#{myBean.onChangeLineNumber(line)}"/>
</h:inputText>
</h:column>
<h:column>
<h:inputText id="desc1" value="#{line.desc}"/>
<h:outputText id="desc2" value="#{line.desc}"/>
</h:column>
</h:dataTable>
</h:form>
(note that I removed event="change"
and execute="@this"
from the <f:ajax>
as those are the defaults already, there's no need to repeat the defaults)
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