ADF Faces - af:tree - updating nodeStamp components

Question

My tree's nodeStamp is an af:selectBooleanCheckbox which maps to a hierarchy of items of indeterminate depth. There are usually at least 3 levels however. If I toggle a parent checkbox then all the child checkboxes must also toggle to match. That is the whole point of the parents in this tree is to be able to turn on or off sets of children, grand-children etc. This should be a pretty standard thing to do with trees. However, I have a bit of a dilemma and I'm hoping that someone out there can help me.
When I toggle a parent checkbox the ThemeTree.valueChangeListener does a getModel().getRowData() to return the current row. I can then traverse the model tree from that instance to toggle all the children to match the state of the parent. From the model perspective everything works fine.
However, if the tree is expanded when the parent state is changed, the visual state of the children do not change! The parent Checkbox is unchecked but the child Checkboxes remain checked :(or visa versa):
Now to make things even more weird. If I close the parent tree and reopen it the children remain out of sync with the parent; even though the backing code model data is properly set.
Even weirder. If the parent Checkbox is not expanded and I change the state and then I open the parent all the child Checkboxes are CORRRECTLY set.
My jsp code looks as follows.
<af:panelGroup partialTriggers="theme_display">
<af:tree id="theme_tree" var="theme"
       binding="#{ThemeTree.tree}"
       value="#{ThemeTree.model}"
       partialTriggers="theme_display">
<f:facet name="nodeStamp">
  <af:panelGroup layout="horizontal">
    <af:objectImage source="#{theme.graphic}"
                    rendered="#{theme.graphic != null}"
                    align="right"/>
    <af:objectSpacer width="3"
                     rendered="#{theme.graphic != null}"/>
    <af:selectBooleanCheckbox id="theme_tree_row"
                              value="#{theme.display}"
                              text="#{theme.displayName}"
                              shortDesc="#{theme.shortDesc}"
                              autoSubmit="true" immediate="true"
                              valueChangeListener="#{ThemeTree.valueChangeListener}"/>
  </af:panelGroup>
</f:facet>
</af:tree>
....My ValueChangeListener looks like this.
    public void valueChangeListener(ValueChangeEvent vce) {
        if (tree != null) {
            setTreeChangeHappening(true);
            ThemeTreeBean currentTheme = (ThemeTreeBean)treeModel.getRowData();
            if (currentTheme.getChild() != null) {
                boolean display = ((Boolean)vce.getNewValue()).booleanValue();
                currentTheme.setDisplayAll(display);
            //TODO: is this doing what I think it is doing?  I'm starting to think not.
            AdfFacesContext afc = AdfFacesContext.getCurrentInstance();
            UIComponent checkBox = vce.getComponent();
            String id = checkBox.getId();
            int i = treeModel.getRowIndex();
            while (treeModel.isRowAvailable()) {
                ThemeTreeBean themeBean = (ThemeTreeBean)treeModel.getRowData();
                String x = themeBean.getName(); // used for debugging
                String y = themeBean.getDisplayName(); // used for debuggin
                afc.addPartialTarget(checkBox); // this might do something if we could get the instance of the UIComponent from the treeModel
                afc.partialUpdateNotify(checkBox);
                treeModel.setRowIndex(++i);
    }List of things that I've tried
(a) I know how to AdfFacesContext.getCurrentInstance().addPartialTarget(vce.getComponent()) and ...partialUpdateNotify(same) but I haven't figured out how to get a handle on the UIComponent instances of the child Checkboxes. The components inside a nodeStamp facet seem to live an arms-length existance. I tried binding the selectBooleanCheckbox to a CoreSelectBooleanCheckbox property in my var class (theme) but this just doesn't work: ADF does not appear to allow it.
(b) I tried various combinations using partialTriggers (no luck there).
(c) The id cannot be a JSF expression (even though the JDeveloper tip claims it can; the ADF documentation says no) so I cannot get the id to find the UIComponent of the children. (Are there UIComponents of the children?)
(d) I tried traversing the treeModel using the setRowIndex(int) method but this only stepped me through the parent level, it did no return the children. Even if it did I'm not sure how I would force the visual update of the child.
The long and short of it is that the behaviour of components inside the nodeStamp is different and it makes for a real problem. I'm about to abandon the af:tree and see if there is anything in myfaces that might help. But before I give up altogether, I thought that I'd ask one more time to see if anyone out there could give me a hint for anything else to try.
Thanks in advance, Mark

Answer 1

More information: You cannot use the var attribute to bind the SelectBooleanCheckbox because it is not a managed bean and you can only bind to managed beans. So I created a CoreSelectBooleanCheckbox property in the ThemeTreeTree class (which is a managed bean) with the intent of matching references to the checkBox property as it rippled through the list.
BUT...it doesn't ripple through the list. There is only one instance of the CoreSelectBooleanCheckbox which appears to be shared by all the visible components.
So ... I'm still stumped.