Custom OAF Page : oracle.jbo.TooManyObjectsException: JBO-25013:

Question

All,
Here is my requirement.......
1) Custom table with columns
payperiod - PrimaryKey
end_date - Date
dept - varchar2
progYear - Number
2) Develop custom page to insert the rows into above table
3) Validations while commiting the changes
a) if the row is new commit
b) if the row is already exists throw warning message in a new page with submit & cancel.... if user select submit button then update the row with new values... if user select cancel button revert back to main page...
I have developed a EO, EO based VO and PG.xml for the above requirement.... but the issue is when user selects CANCEL button I am getting the below error........ based on search over the forums I have tried setting vo.clearCache(); and setting the properties DisableServerSide validation, DisableClientSideValidation to true also did not help...
Can anyone help in solving this issue....
Error
oracle.jbo.TooManyObjectsException: JBO-25013: Too many objects match the primary key oracle.jbo.Key[201101 ].
Pay Period - Attribute PostPayPeriod in xxpbgcpayrollinterfaceAM.xxpbgcPayrollBlobVO is required
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Answer 1

Hi,
*3) Validations while commiting the changes
a) if the row is new commit
b) if the row is already exists throw warning message in a new page with submit & cancel.... if user select submit button then update the row with new values... if user select cancel button revert back to main page... *
use findByPrimaryKey() method for ur requirement. For more Refer Developer Guide.
Regards,
Gyan