Read from Page Approval List Table in a PL/SQL procedure

Need help, I am new to OA Framework.
We have a requirement to validate the added requisition Approvers against some criteria.
The Approvers are added using Add approvers on the Requisition Creation page.
The source code shows: ApproverListRn.ApprListTable as the name of the table list which holds the approver names.
1) Is there a way to read the data from ApproverListRn.ApprListTable in a PL/SQL procedure?
2) How and when does this list of approvers get added to the po_approvallist_headers table? which package is used?
Please any help is greatly appreciated.
Thanks

1) Is there a way to read the data from ApproverListRn.ApprListTable in a PL/SQL procedure?
Using OAF, you can read the value from the table and through OracleCallableStatement you can call a pl/sql procedure passing the read value.2) How and when does this list of approvers get added to the po_approvallist_headers table? which package is used?
This is page and code specific. You will have to debug and find out.--Shiv

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