ReadOnly property set using bean does not re-evaluate on second load

Question

Hi all,
We have the below table and column in our code. The column has a selection list whose readonly property depends on "row" level attributes. We have this table rendered based on context values on the page's header section. Based on the context on header, this table changes. But what we observe is that after the first context loads, the selectOneChoice8 item's "readOnly" EL expression is not re-evaluated for the second context load of the table.
          <af:table value="#{bindings.VoSum1.collectionModel}"
                    var="row" rows="#{bindings.VoSum1.rangeSize}"
                    width="100%" id="t1"
                    columnSelection="multiple"
                    binding="#{backingBeanScope.MyBean.profileContentTable}"
                    rendered="#{backingBeanScope.MyBean.profileSectionSummaryVisible}"
                    columnStretching="column:name"
                    partialTriggers="::simpleCreateButton ::deleteButton :::d2"
                    contentDelivery="immediate"
                    selectionListener="#{backingBeanScope.MyBean.selectProfileItemRow}"
                    rowBandingInterval="0" editingMode="editAll">
                                     <af:column
                       headerText="#{bindings.VoSum1.hints.LevelId1.label}"
                       id="LEVEL_ID1" sortable="true"
                       sortProperty="LevelId1" width="85">
              <af:selectOneChoice
                  readOnly="#{pageFlowScope.pRoleCode != 'HR' &amp;&amp; row.QualifierId1 != null &amp;&amp; row.QualifierId1 != backingBeanScope.ProfileContentBean.defaultQualifierId}"
                                  value="#{row.bindings.LevelId1.inputValue}"
                                  shortDesc="#{bindings.ProfileItemSum1.hints.LevelId1.tooltip}"
                                  immediate="false" autoSubmit="#{bindings.ProfileUsageCode.inputValue == 'P'}"
                                  valueChangeListener="#{backingBeanScope.ProfileContentBean.levelChangeListener}"
                                  id="selectOneChoice8"
                                  partialTriggers="ModelId1">
                <f:selectItems value="#{row.bindings.LevelId1.items}"
                               id="si2"/>
                <af:selectItem disabled="#{backingBeanScope.ProfileContentBean.LevelId1Rqd &amp;&amp; row.bindings.RatingLevelId1.inputValue != null}"
                              id="si3" label="#{null}"/>
              </af:selectOneChoice>
            </af:column>Do we need to refresh the state of the table on every context change? Would use of UIComponent.processRestoreState() be an option? Any pointers would be immensely appreciated.
Thanks in advance,
Srini

Answer 1

Thanks Vishal for the pointer. Tried this and it did not work for me :(.
We were overriding the value expression for 'readOnly' by setting 'true' or 'false' explicity in the bean. When the context changes, once we set in the bean, it appears that the selectOneChoice's readOnly value expression does not get evaluated once we set the 'readOnly' property in the bean. Next time on, it retains the value set in the bean onto the uiComponent of the selectOneChoice.
So we worked around this by getting the value expression in the bean and appending the bean evaluated value of 'true' or 'false' to the ui value expression. Next time the context changes, we extract the value expression from uiComponent instance and strip it to reconstruct the original value expression :).
It worked even though it looks weird that the selectOneChoice does not get re-evaluated despite the entire table getting refreshed.