How to click one tab to trigger 5 ExecuteWithParams?

Question

Is this a challenging question?
I am using JDeveloper 10.1.3.4 and what I am trying to do is otherwise pretty simple. In the application there is a page that displays row counts in tables. With one statistic, the page would look like this:
200902 | 200906
   Total Number of Students    12066  The "Total Number of Students" is a read-only form, from a view object named TotalStudents whose query is:
SELECT COUNT(*) AS TOTAL_STUDENTS
FROM BILL
WHERE HOURS_ATTM > 0
AND TERM = :SelectedTermThe value of the :SelectedTerm is supplied by clicking either of the two tabs (200902 or 200906). The page layout is created by using af:panelPage. Following the example in a tutorial, the tabs on the menubar are created by dragging and dropping the ExecuteWithParams action of the TotalStudents view object in the data control palette into the menubar node in the structure window as a commandLink. The setActionListener of the commandLink puts the value #{'200902'} into the #{requestScope.semester} vairable. Then in the page definition xml file, #{requestScope.semester} is assigned to the SelectedTerm bind variable of the ExecuteWithParams action in the bindings node.
That works fine in the one statistic page. When the 200902 tab is clicked, Total Number of Students is 12066. When 200906 tab is clicked, the number is 590.
The problem is that the page needs to display not just this one statistic, but five of them:
200902 | 200906
     Total Number of Students    12066 
   Students Already Validated    11482
             Validated Online      974
      Validated Traditionally    10508
   Students Not Yet Validated      584These five statistics are five view objects with five different sql queries. They have one thing in common though: each query has only one bind variable named SelectedTerm, which is assigned '200902' or '200906' depending on which tab is clicked. Following the way the tutorial demonstrates, I will have to drag and drop the ExecuteWithParams action two times each for the five view objects to create 10 tabs, which will make the page quite messy.
What I want to do is that, when the 200902 tab is clicked, the page displays all the five 200902 semester statistics. When the 200906 tab is clicked, the page displays all the five 200906 semester statistics, i.e., the five view objects share one ExecuteWithParams action.
Is there a way to achieve that? And How?
Thank you very much for helping me out!
Newman

Answer 1

Hi, John:
I tried doing it in the backing bean and it works out great. I wrote a method refreshSummaryStats(String term) that retrieves all the five VOs, sets the bind variable of each VO query to the term passed to it, and executes the query. On the page in the visual editor click each commandLink on the menu bar to create a commandlink action. In the action method, call the refreshSummaryStats() with the term argument.
Thank you very much for the direction. That helps a lot!
Newman