question: public Object assignIdValue ( Object data , Number val , ObjectCache objectCache ) throws SQLException { Object idVal = dataPersister . convertIdNumber ( val ) ; if ( idVal == null ) { throw new SQLException ( "Invalid class " + dataPersister + " for sequence-id " + this ) ; } else { assignField ( data , idVal , false , objectCache ) ; return idVal ; } }
target:  Assign an ID value to this field.