Hi,
I am using Hibernate 3.0.5 with Spring (Version: 1.2.4)

I am setting the TCN (version field) of a VO to a number less than what it is in DB for that row. And I am expecting "StaleObjectStateException" while updating this VO.
But somehow Hibernate seems to be ignoring this new TCN, and is successfully updating the VO, and DB shows next TCN value for this VO.

Is there any setting to enable this option?
I might be doing something stupid. Please help. (look at lines in bold)
Here is code snippet:

********************************************************
Estimate estimate = docDao.findEstimateByEstimateDocId(estimateDocId);
if (estimate == null)
throw new DaoException(
"There is no estimate associated with the estimateDocId!");

EstimateXmlAnnotation xmlAnnotation = estimate
.getEstimateXmlAnnotation();
if (xmlAnnotation == null)
throw new DaoException(
"There is no annotation associated with the estimate!");

xmlAnnotation.setXmlData(xmlData); // input from client
xmlAnnotation.setUpdatedBy(updatedBy); //inputs from client
xmlAnnotation.setUpdatedDate(new Date());
xmlAnnotation.setCoCd(companyCode);
logger.info("Tcn passed by client is :" + tcn);
xmlAnnotation.setTcn(tcn); //explicitly setting TCN
Document xmlAnnotationDoc = xmlAnnotation.getDocument();
xmlAnnotationDoc.setUpdatedBy(updatedBy);
xmlAnnotationDoc.setUpdatedDate(new Date());
xmlAnnotationDoc.setCoCd(companyCode);

docDao.update(xmlAnnotationDoc);
xmlAnnotationDao.update(xmlAnnotation);
xmlAnnotationDao.flushHibernateSession();********************************************************

Here is mapping for the EstimateXmlAnnotation VO:

<hibernate-mapping schema="CLM" package="com.mitchell.services.technical.partialloss.estimate.bo">
<class
name="EstimateXmlAnnotation"
table="CLM_EST_XML_ANNOTATION"
>
<id
name="id"
type="java.lang.Long"
column="ANNOTATION_ID"
>
<generator class="sequence">
<param name="sequence">CLM_EST_XML_ANNOTATION_SEQ</param>
</generator>
</id>

<version name="tcn" column="TCN" type="java.lang.Long" unsaved-value="null"/>

<property
name="coCd"
column="CO_CD"
type="string"
not-null="true"
length="10"
/>
----so on and so forth..
******************************************************
This is the hibernate log I see (if this helps)

******************
17:12:13,603 DEBUG BasicEntityPersister:2595 - com.mitchell.services.technical.partialloss.estimate.bo.EstimateXmlAnnotation.tcn is dirty
17:12:13,603 DEBUG BasicEntityPersister:2595 - com.mitchell.services.technical.partialloss.estimate.bo.EstimateXmlAnnotation.updatedDate is dirty
17:12:13,603 DEBUG DefaultFlushEntityEventListener:121 - Updating entity: [com.mitchell.services.technical.partialloss.estimate.bo.EstimateXmlAnnotation#2034]
17:12:13,603 DEBUG Versioning:26 - Incrementing: 15 to 16
*****************************************

I really appriciate your help.
Thanks,
Manoj