According to the documentationfor JDBC, you can use the getter methods on the insert row. But the postgres implementation of JDBC always returns values from the current row.
John
PS: JDBC does not seem to have a way of asking the driver whether it's on the insert row.
I suppose you could call relative(0). If it's on the insert row it will throw an exception. If not on the insert row, then relative(0) should not throw an exception but it shouldn't do anything else either. Is there a better way?