Pkfieldsblobs updateRecord = new Pkfieldsblobs();
updateRecord.setId1(new Integer(3));
updateRecord.setId2(new Integer(4));
updateRecord.setLastname("Jones");
int rows = dao.updateByPrimaryKeySelective(updateRecord);
assertEquals(1, rows);
Pkfieldsblobs returnedRecord = dao.selectByPrimaryKey(
new Integer(3), new Integer(4));
assertEquals(record.getFirstname(), returnedRecord.getFirstname());