Primefaces custom selectOneRadio, doesn't propagate to backing bean - jsf

Question

I'm currently having a problem with the <p:radioButton> and <p:selectOneRadio>. I'm trying to make a form with three radio buttons with some boxes next to them, this works and the "radio-mechanism" in the buttons work so that only one can be selected at once. However the selected radio button is not propagated to the backend. I've tried putting a <p:ajax> in the <p:selectOneRadio> to make it trigger some sort of call to the backing bean but with no success. I have looked at the following primefaces example: http://www.primefaces.org/showcase/ui/selectOneRadio.jsf
Can someone point me in the right direction to solve this problem?
<p:selectOneRadio id="customRadio" layout="custom" value="advancedSettingsBean.radioValue">
<f:selectItem itemValue="1" />
<f:selectItem itemValue="2" />
<f:selectItem itemValue="3" />
<p:ajax />
</p:selectOneRadio>
<tr>
<td valign="top">
<p:radioButton id="CheckboxValidTimeCurrent" for="customRadio" itemIndex="0">
</p:radioButton>
</td>
<td colspan="2">
<h:outputText value="#{messages.search_advanced_validtimecurren}" />
<br />
</td>
</tr>
<tr>
<td valign="top">
<p:radioButton id="CheckboxvValidTimeDate" for="customRadio" itemIndex="1">
</p:radioButton>
</td>
<td colspan="2">
<h:outputText value="#{messages.search_advanced_validtimedate}" />
<br />
<p:calendar id="singledate" value="#{advancedSettingsBean.singleSearchDate}"
datePattern="yyyy-MM-dd" direction="smart" jointPoint="auto"
inputStyle="width:80px" style="width: 200px">
<f:convertDateTime pattern="yyyy-MM-dd" timeZone="UTC" />
</p:calendar> Z
<br />
<p:message showSummary="true" showDetail="false"
id="singledateError" for="singledate" />
<br />
</td>
</tr>
<tr>
<td valign="top">
<p:radioButton id="CheckboxvValidTimeSpan" for="customRadio" itemIndex="2">
</p:radioButton>
</td>
...

Answer 1

You should put the value of selectoneradio in a el expression:
value="#{advancedSettingsBean.radioValue}"