ValueChangeListener on LOV not invoked 2nd time

Question

Hi All ,
I am using Jdev 11.1.1.6 with WLS 10.3.5 and ADF BC.
I have a LOV which is bound to an attribute of a VO. Below the LOV I have the same VO dropped as a table.
Initally I am creating an empty row for the table since no rows exist. So the LOV (showing a certain Type of value) shows up as empty.
The LOV is tied to a ValueChangeListener (VCL) and autoSubmit=true. My valueChangeListener is as follows ->
    public void rateTypeCommonValueChangeListener(ValueChangeEvent vce) {
        vce.getComponent().processUpdates(FacesContext.getCurrentInstance());
      //further logic
}The VCL fires properly the 1st time I change the value from blank to a particular value. But doesnot fire after that.
I debugged and figured that it doesnot even call the VO Attribute setter the 2nd time :(
Here is the jspx code bit if needed ->
<af:showDetail disclosed="true" id="sd1">
       <af:selectOneChoice value="#{bindings.RateType.inputValue}" // The LOV in question
                          label="#{bindings.RateType.label}"
                          required="#{bindings.RateType.hints.mandatory}"
                          shortDesc="#{bindings.RateType.hints.tooltip}"
                          id="soc8" autoSubmit="true"
                          valueChangeListener="#{pageFlowScope.RateBean.rateTypeCommonValueChangeListener}"> // The VCL in question
        <f:selectItems value="#{bindings.RateType.items}" id="si13"/>
        <f:attribute name="rateType" value="01"/>
        <f:attribute name="binding" value="RateType"/>
      </af:selectOneChoice>
      <af:panelGroupLayout id="pgl1" layout="horizontal">
        <af:panelCollection id="pc1">
           <af:table value="#{bindings.TariffRateForAirtime.collectionModel}"// the Table and LOV both point to the same iterator Binding in the pageDef
                    var="row" rows="#{bindings.TariffRateForAirtime.rangeSize}"
                    emptyText="#{bindings.TariffRateForAirtime.viewable ? 'No data to display.' : 'Access Denied.'}"
                    fetchSize="#{bindings.TariffRateForAirtime.rangeSize}"
                    rowBandingInterval="0"
                    selectedRowKeys="#{bindings.TariffRateForAirtime.collectionModel.selectedRow}"
                    selectionListener="#{bindings.TariffRateForAirtime.collectionModel.makeCurrent}"
                    rowSelection="single" id="t2"
                    partialTriggers="::ctb1 ::ctb2 ::pc2:ctb3 ::pc2:ctb4"
                    autoHeightRows="4" contentDelivery="immediate"
                    columnStretching="column:c29">
            <af:column sortProperty="Price" sortable="false" headerText="Cost"
                       id="c12">
              <af:inputText value="#{row.bindings.Price.inputValue}"
                            label="#{bindings.TariffRateForAirtime.hints.Price.label}"
                            required="#{bindings.TariffRateForAirtime.hints.Price.mandatory}"
                            columns="#{bindings.TariffRateForAirtime.hints.Price.displayWidth}"
                            maximumLength="#{bindings.TariffRateForAirtime.hints.Price.precision}"
                            shortDesc="#{bindings.TariffRateForAirtime.hints.Price.tooltip}"
                            id="it5" autoSubmit="true">
                <f:validator binding="#{row.bindings.Price.validator}"/>
                <af:convertNumber groupingUsed="false"
                                  pattern="#{bindings.TariffRateForAirtime.hints.Price.format}"/>
              </af:inputText>
            </af:column>
            <af:column sortProperty="UnitType" sortable="false"
                       headerText="#{bindings.TariffRateForAirtime.hints.UnitType.label}"
                       id="c9">
              <af:selectBooleanCheckbox value="#{row.bindings.UnitType.inputValue}"
                                        label="#{row.bindings.UnitType.label}"
                                        shortDesc="#{bindings.TariffRateForAirtime.hints.UnitType.tooltip}"
                                        id="sbc3" autoSubmit="true"/>
            </af:column>
            <af:column sortProperty="IntervalId" sortable="false"
                       headerText="#{bindings.TariffRateForAirtime.hints.IntervalId.label}"
                       id="c10">
              <af:selectOneChoice value="#{row.bindings.IntervalId.inputValue}"
                                  label="#{row.bindings.IntervalId.label}"
                                  required="#{bindings.TariffRateForAirtime.hints.IntervalId.mandatory}"
                                  shortDesc="#{bindings.TariffRateForAirtime.hints.IntervalId.tooltip}"
                                  id="soc1" autoSubmit="true">
                <f:selectItems value="#{row.bindings.IntervalId.items}"
                               id="si1"/>
              </af:selectOneChoice>
            </af:column>
            <af:column id="c29" headerText="Interval Desc"/>
            <af:column id="c11" headerText="Tax"
                       binding="#{pageFlowScope.RateBean.taxesColumnAirtime}"
                       visible="#{bindings.TaxesApplicable.inputValue}">
              <af:selectManyChoice label="Tax" id="selectManyChoice2"
                                   value="#{pageFlowScope.RateBean.taxes}"
                                   readOnly="true">
                <af:forEach items="#{bindings.TariffTax.rangeSet}" var="item">
                  <af:selectItem value="#{item.TaxId}" id="selectItem2"
                                 label="#{item.TaxName}"/>
                </af:forEach>
              </af:selectManyChoice>
            </af:column>
          </af:table>
        </af:panelCollection>
      </af:panelGroupLayout>
    </af:showDetail>I know alternatively I can have an independant LOV populated programmatically but I have a number of such combinations in my page and I am trying to reduce my coding effort out here.
Also this issue sounds similar to me to - Re: Value Change Listener In af:table

Answer 1

Yahoo .. I was able to get this work just now after struggling with it for a few hours :(
basically in my VCE called an AM method in which I was resetting the value of the LOV Attribute due to some requirement.
When I was getting the value from the SelectOneChoice (not the Index) using https://blogs.oracle.com/shay/entry/getting_the_value_from_a_selec ,
I was being returned a Row instead of a Value... this was causing the Issue.For some strange reason I had to get an attribute out of it... and doing that resolved the issue for me.
    private Object getValueForSelectOneChoice(String bindingName){
        JUCtrlListBinding listBinding=(JUCtrlListBinding)ADFUtils.getBindingContainer().get(bindingName);
        Object selectedValue=listBinding.getSelectedValue();
        return ((CustomViewRowImpl)selectedValue).getAttribute("Id");//I have no idea why we need to do this to get value from a ListBinding !
    }