Manipulating an attribute's LOV accessor's VO

Question

Hi,
I'm using JDev 11.1.1.2.
I have a 'parent' VO that has an attribute I have set up an LOV/accessor for, to a 'child' vo.
And I have a page on which I've dropped the parent VO and the parent attribute is rendered correctly as a dropdown, with the child vo's values.
Now the business case is that the dropdown doesn't always show ALL the values from child vo. Depending on some combination of scenarios on the screen, there should be a restricted set of values in the dropdown.
For starters, I tried applying where clause to the child vo in 2 ways, and neither works (where clause never gets applied and I see all values in both cases). If I drop child VO directly on the page, the filtered version of the data is shown, but I cant get the dropdown which is tied to childvo through the parent VO's accessor to use that value.
1. Used application module method, and called this method in a method call before the page fragment that shows the dropdown.
                 ViewObject childvo = this.getChildVO1();
            childvo.setWhereClause("somewhereclause");
            childvo.executeQuery();
     2. Tried manipulating the list binding from the backing bean method that is tied to the dropdown.
              public RichSelectOneChoice getChild() {
     BindingContext bctx = BindingContext.getCurrent();
        BindingContainer bindings = bctx.getCurrentBindingsEntry();
        FacesCtrlListBinding lov = (FacesCtrlListBinding)bindings.get("Child");
        lov.getListIterBinding().getViewObject().setWhereClause("somewhereclause");
        lov.getListIterBinding().getViewObject().executeQuery();
        lov.getListIterBinding().executeQuery();
        return child;
     Anyone able to provide some guidance on this?
Thanks!
Kalp

Answer 1

Thanks Jobinesh, but found a simple way to fix my problem.
I just removed the accessor and attribute LOV from the parent VO, and left the child vo as an independent VO.
And then just used the following. So basically no accessor, no problem..
            ViewObject childvo = this.getChildVO1();
            childvo.setWhereClause("somewhereclause");
            childvo.executeQuery();
         <af:selectOneChoice value="#{bindings.ParentAttr.inputValue}"
                              label="Select a value"
                              required="true"
                              id="soc1">
                    <af:forEach var="row"
                                items="#{bindings.ChildVO1.rangeSet}">
                      <af:selectItem label="#{row.Description}"
                                     value="#{row.Id}" id="si1"/>
                    </af:forEach>
          </af:selectOneChoice>thanks
Kalp