jbo:row action="create" Validation Failure

Question

In our InsertSubmit JSP, we use the <jbo:Row> and <jbo:SetAttribute> data tags to create & populate the row:
<jbo:Row id="myrow" datasource="ds" action="Create">
<jbo:SetAttribute dataitem="*"/>
</jbo:Row>
This works great under normal circumstances but, should an error occur (due to a characters being entered in a numeric field in the InsertForm JSP for example), the SetAttribute statement fails reporting an "invalid type" (or similar) error to the user (as desired).
HOWEVER, the row appears to have been created in the RowSet so that once a valid value has been re-entered into the numeric field and the form re-submitted, a "Too Many Objects Match Primary Key" error is produced from the above statement when the valid form data is (finally) submitted!
Should this row not have been backed out by the framework when the validation failed? If not, how should we test for/remove this row such that the InsertSubmit does not attempt to create a duplicate in the RowSet?
Many thanks...

Answer 1

Thank you for your comment. The action value createonly is new in 9.0.3.
Starting in 9.0.3 (production release) you will be able to create rows in these ways:
create - inserts a new row at the beginning of the RowSet and sets the currency to the new row.
createinrange - inserts a new row at the beginning of the range without changing the currency.
createonly - creates a new row but does not insert it into the RowSet. This is useful when you
need to create row simply to be able to retrieve the default value of each attribute and
you do not not use this row after that.