Execute Method Before Detail VO is Refreshed

Hi all,
JDeveloper 11.1.2
I have two entity based view objects with master-detail relationship defined by a view link. The detail view object is based on an advanced Oracle database view, which needs a database procedure to be executed before it can be queried.
Besically, I want to execute a method when master view object current record is changed, before detal views are refreshed.
Is this possible? As an ADF noob, I see lots of methods to override, but which one?
I hope you can help.
Regards,
Håvard

Haavard,
This is a use case I've never run across before, so my "answer" here is really just thinking out loud (I've not tried).
First, you'll have to make sure that your View Object isn't based on an Entity Object (I'm guessing), otherwise the EO cache may get in the way of refreshing the VO.
Perhaps you could have a read of [url http://download.oracle.com/docs/cd/E16162_01/web.1112/e16182/bcadvvo.htm#sm0341]this part of the docs, which tells how to do a programmatic VO to get some ideas. What I would probably try first is overriding executeQueryForCollection() to first call the stored procedure and then call super.executeQueryForCollection().
Again, not tried/tested, so something for you to try out :)
Edit - Timo and I posted about the same time - his idea seems promising, too.
Best,
John

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I love JSF, but I have continuously run in to a wall
trying to figure out how to execute code before a
page is displayed. Is there some Listener/Binding
mechanism that I could tap into that would be called
before Render Response? In vanilla JSF? No.
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A Phase Listener is too general, I don't want
something that walks the tree for every request. I agree.
Action/ValueChange Listeners are only called after a
user takes an action. Yep.
Putting calls (for example DAO) in getter methods
works in some circumstances, but is fragile and is
insufficient when you need to populate multiple
fields on a bean but only want one (DB) call. (You
can put it on the first one that will be called, but
this destroys reusability).Exactly.
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first <h:outputText> on the screen's render field.
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This is a general question, but my current scenario
is a single DB lookup needs to get a list of beans
before a page is displayed. (users can link directly
to the page). Once the lookup is complete the list of
beans is displayed in 3 seperate data tables with 3
seperate action bindings. So it doesnt really make
sense to do the db lookup in one get method that
populates the 2 other lists, though it would be a
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https://jsftemplating.dev.java.net
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