Bind Variable Brain Teaser - Accessing a filtered Parent from a Child

Question

Hi Guys and Gals,
Using JDev 11.1.2.4.0.
I have two tables, the parent(Scenarios) and the child (Orders).  They are setup as such:
SELECT Scenarios.SCENARIO_ID,
               Scenarios.NAME,
               Scenarios.COMPANY_ID
FROM SCENARIOS Scenarios
WHERE Scenarios.SCENARIO_ID = :pScenarioId
ORDER BY Scenarios.SCENARIO_ID
SELECT Orders.ORDER_ID,
               Orders.COMPANY_ID
FROM ORDERS Orders
Scenarios (The Parent) has a required bind variable which filters on the primary key, SCENARIO_ID.  The primary key for the Orders table is Order_ID.  The two tables are joined by an association & view link on COMPANY_ID, setup as a 1-to-* relationship.  However, it is in fact a *-to-* relationship since an Order row can appear in several scenarios.
In the Orders View Object, I also have a transient attribute, ScenarioInfo, which attempts to access Scenarios's current row to retrieve the name.  The getter is as such:
public BigDecimal getScenarioInfo() {
     Row row = this.getScenariosView();
     DBSequence db = ((ScenariosViewRowImpl)row).getScenarioId();
     return new BigDecimal(db.getValue());
The sequence of events:
1) Open the application module and click on the view link between Scenarios and Orders.  A window pops open asking for the bind variable (pScenarioId) value.  I enter a valid value (2) and hit enter.  This should (in theory) return only one row for the Scenarios view object, the one with the ScenarioId of 2.  Clicking only on the Scenarios view object in the application module verifies this.  The Orders view object then renders, but an error message is displayed attempting getScenarioInfo()
(oracle.jbo.AttrValException) JBO-27019: The get method for attribute "ScenarioInfo" in Orders cannot be resolved.
I'm not sure I understand why.  ScenarioId with a value of 2 is a valid number.  With the bind variable / filter in place there should be one row as the parent, turning the relationship into a 1-to-*.  Without the filter in place, I may access the parent without error, but the record that is pulled back is the first possible row due to the 1-to-* relationship.
Instead of having a bind variable, I have also tried implementing a View Criteria in the app module for the Scenarios view object.  However, the criteria doesn't seem to "stick" when the this.getScenariosView() is called from the Orders view.  It also pulls back the first row.
Does anyone have any ideas?  The only thing I can think of would be to change the relationship to a *-to-* through a translation table, but that's a complication I do not wish to add if possible.
Thanks in advance,
Will

Answer 1

Here is an alternate approach.  This one removes the bind variable from the Scenarios query and instead implements the following code in the app module impl.
    public void refreshScenario() {
        ViewObjectImpl allScenarios = this.getAllScenarios();
        VariableValueManager manager = allScenarios.getVariableManager();
        manager.setVariableValue("pScenarioId", new BigDecimal(2));
        ViewCriteriaManager criteriaManager = allScenarios.getViewCriteriaManager();
        ViewCriteria vc = criteriaManager.getViewCriteria("ScenariosViewCriteria");
        criteriaManager.applyViewCriteria(vc);
        allScenarios.executeQuery();
The getter is the same as my second getter example:
    public String getScenarioInfo() {
        // remove the default getter for the transient string variable ScenarioInfo
        // return (String) getAttributeInternal(SCENARIOINFO);
        // get the view link accessor for the parent row, Scenarios
        ScenariosViewRowImpl row = (ScenariosViewRowImpl)this.getScenariosView();
        // This should return 1 row, which would be the row remaining after filtering by the bind variable with a value of 2
        // Get that rows Name attribute
        String s = row.getName();
        return s;
I run the app module tester and then run the refreshScenarios() method.  I then double-click the view link which pops up a dialog box.  The bind variable pScenarioId is pre-filled with 2.  I click enter a receive the following unexpected output as seen here: http://www.williverstravels.com/JDev/Forums/Threads/11077337/ViewCriteriaAttempt.jpg
As you can see, the ScenarioInfo column returns "#1" when it should return the parent's Name, which would be "#2".  I am a little confused as to why this is functioning this way.