ExecuteWithParameter with Binds on several view objects

Question

I thought I knew how to do this, but it has been a month or two, and can't seem to get the syntax right. I would really appreciate some guidance on this.
I'm using jdev 11 to create a basic page using ADF Faces. In the model, I have three seperate read only view objects based on queries I created in SQL Developer. I also have two lookup tables for use in LOVs to display names for IDs. In one of the views, I added two LOVs for id columns. I have one more lookup that displays name, id for Tech's.
All three views have the same named bind variable - :TechID
What I want is to have a single select box that displays the name column from Tech that will return the ID for TechID. When the user clicks the ExecuteWithParms, all three views should be refreshed and re-queried with the new bind value, and display the results. To see this work, I have been working with readonly tables, but eventually hope to use graphs for the three views.
Here is the general layout that I am trying to achieve.
Select One Choice (List of Techs with display set to name, and the return set to ID)
ExecuteWithParams button. Currenly have table1, table2, table2 in the partialtriggers field.
table1
ViewObject1 that has a named bind of :TechID
table2
ViewObject2 that has a named bind of :TechID
table3
ViewObject3 that has a named bind of :TechID
This seems like it should be easy to setup. Can this be done declaratively, or do I need code. If I need code, can I get a few hints?
Is there an example that has something similar that I can gleen how to accomplish this?
Thanks, Ken

Answer 1

Timo et al,
I still can't seem to get this to work. I finally worked through a problem with JDeveloper working (Feels like it has been April 1st for a week straight! (American Humor)). In trying to simplify this, I am asking if someone can create the following example use case based on the HR schema. I'm not asking for a paper, just 15 or so minutes from someone that is good at this to create a working example. Also, send me a zipped copy of the project, or make it available on your blog or other downloadable location.
Thanks for any help with this to really understand how to get JDeveloper to work for me.
Here are the specifics for a Highly desired example:
This is based on HR schema.
Read Only View Objects
-- LOCATION_LKUP
select
(street_address || ' ' || city || ', ' || state_province || ' ' ||to_char(postal_code) || ' ' || country_id) as location_name,
location_id
from
locations
order by country_id, location_name;
-- ViewObject DepartmentStuffView
select *
from departments
where location_id = :LOC_ID;
-- ViewObject EmployeeStuffView
select * from employees
where department_id in (select department_id
from departments
where location_id = :LOC_ID);
-- Modify the AppService and ViewObjects to expose Java code to
-- modify the (name)Impl.java file
AppService Code
public void updateViews(String locationID) {
     // Get a reference to the ViewObjects
DepartmentStuffView vo1 = (DepartmentStuffView) getDepartmentStuffView1();
EmployeeStuffView vo2 = (EmployeeStuffView) getEmployeeStuffView1();
     // Now have each view object requery itself with the new parameter
vo1.updatewithParam(locationID);
vo2.updatewithParam(locationID);
ViewObject Code
-- In both ViewObjects
-- (DepartmentStuffViewImpl.java and EmployeeStuffViewImpl.java),
-- add the following code at the bottom
public void updatewithParam(String locationID) {
     setTechID(locationID);
     executeQuery();
Layout:
Location Name: ComboBox <== Displays LOCATION_NAME, Returns LOCAION_ID
<Run Report> <== Button to run the process
Table1
The view object DepartmentmentStuffView
Table2
The View Object EmployeeStuffView
Expected Behavior:
Change the location in combo box and press the run report button.
The data in both views with bind variables get updated.
Extension:
Page can have search with multiple filters. The AppService can control
which views get updated with which values depending on selections. Common
use case.
Thanks so much, Ken