Redirecting dialog page back to seeded base page.

Question

Hi,
I have a requirement where in I need to do some extra validation on OA seeded page. OAPage has cancel and Apply button.
Apply would commit the transaction and cancel would cancel the trxn.
On click of Apply, I have to do validation on the data entered by user, then I need to open up a dialog page with buttons yes and No.
on clicking yes I need to take the control back to the original page and execute as if Apply is clicked(that is commiting the trxn to database).
On clicking No, I need to display the orginal page without losing any values on the page.
I have extended oracle class and this is the code in MyExtendedClass .
public void processFormRequest(OAPageContext pageContext, OAWebBean webBean)
if(pageContext.getParameter("Apply") != null)
String newvalue = pageContext.getParameter("newvalue");
if (newvalue != "1000000")
//open up the dialog page with options yes and no.
OAException mainMessage = new OAException("test warinig message - Do u want to continue?");
OADialogPage dialogPage = new OADialogPage(OAException.WARNING, mainMessage, null,"","");
dialogPage.setOkButtonItemName("yes");
dialogPage.setNoButtonItemName("no");
dialogPage.setOkButtonToPost(true);
dialogPage.setNoButtonToPost(true);
dialogPage.setPostToCallingPage(true);
dialogPage.setOkButtonLabel("Yes");
dialogPage.setNoButtonLabel("No");
pageContext.redirectToDialogPage(dialogPage);
else
super.processFormRequest(pageContext, webBean);
if (pageContext.getParameter("yes")!=null)
How to take control back to the seeded oracle class where oracle has handled Apply event
if (pageContext.getParameter("no")!=null)
How to display the seeded oracle page.(page prior to display of Dialog page without losing any values entered by the user on page)
Please advise how to go abt it.
Thanks,
Tanveer

Answer 1

setForwardURL didn't help.
I tried this -
if (pageContext.getParameter("yes")!=null)
pageContext.putParameter("Apply","Apply");
super.processFormRequest(pageContext, webBean);
This gives me null pointer exception. I think it executes seeded Apply action, but the values entered by user somehow gets washed out and hence the error.
On click of No button on dialog box, it takes me to the seeded page but the all values entered by the user gets lost.
What can be done to not to lose the values on the seeded page when coming from the dialog box?
--Tanveer