hibernate saveOrUpdate doesn't save new obj with assigned id

adellalin · **Joined:** Wed Jul 18, 2007 3:09 pm **Posts:** 4

Question is when an object with an assigned id was created and saved using org.springframework.orm.hibernate3.support.HibernateDaoSupport.getHibernateTemplate().saveOrUpdate(obj),
saveOrUpdate did update() instead of save(). why hibernate didn't know it is a new object and do save() ?

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Hibernate version: 3.0

Mapping documents:

Code:

<hibernate-mapping package="com.amg.brides.wedsimple.account.model">
    <class name="com.amg.brides.wedsimple.account.model.WedSimpleAccountSync" table="wedsimple_sync_acct">
          <cache usage="nonstrict-read-write" />

    <id name="id" column="user_id" type="long" unsaved-value="0" />
    <property name="sync" column="sync" type="string" not-null="false" />
    </class>
</hibernate-mapping>

Code between sessionFactory.openSession() and session.close():

Code:

org.springframework.orm.hibernate3.support.HibernateDaoSupport.getHibernateTemplate().saveOrUpdate(obj);

Full stack trace of any exception that occurs:
no error but no data is saved. When saveOrUpdate(new Object()) is called, hibernate did update by issuing a update statement. It should be calling save() with an insert sql.
Name and version of the database you are using:
Oracle 10g
The generated SQL (show_sql=true):

Debug level Hibernate log excerpt:
When saveOrUpdate(new Object()) is called, hibernate did update by issuing a update statement. It should be calling save() with an insert sql.

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adellalin · **Joined:** Wed Jul 18, 2007 3:09 pm **Posts:** 4

I think the answer might be this:

hibernate uses <unsaved-value> to determine if data is new (save) or old(update). when a new object is created with assigned id like 122, which is not specified unsaved-value, it thinks obj is old then do update.

If this is wrong, please let me know

Madan_Prabhu · **Posted:** Fri Jan 09, 2009 12:12 am

yes friend hibernate use this configuration as u said...

take a view this post ...

http://forum.hibernate.org/viewtopic.php?t=993431