problem with cascade update in one-to-one relation

Kamil Frymus · **Joined:** Wed Nov 09, 2005 11:03 am **Posts:** 5

Hi,

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Hibernate version: 2

I have problem with updating my data.
I have User class that contains UserInformation. Theire are linked with one-to-one relation. When I call session.saveOrUpdate() something went wrong. (When I call only update() it dosn't solve the problem)
Data in User table are updated, but in UserInformation isn't , there is created a new row in user_information table with new primmary key.

My User mapping file contains:

Code:

<id name="id" column="user_id" unsaved-value="0">
   <generator class="foreign">
      <param name="property">userInformation</param>
   </generator>
</id>
<one-to-one name="userInformation" class="UserInformation" cascade="all"></one-to-one>
. . .

My UserInformation mapping file contains:

Code:

<id name="id" column="user_information_id" unsaved-value="0">
   <generator class="increment" />
</id>
. . .

Hibernate think that my UserInformation object wasn't save. But it was and it gets an ID.

Some logs:
DEBUG - version unsaved-value strategy NULL
DEBUG - saveOrUpdate() previously saved instance with id: 12
DEBUG - updating [webmail.model.User#12]
DEBUG - processing cascades for: webmail.model.User
DEBUG - cascading to saveOrUpdate()
DEBUG - saveOrUpdate() unsaved instance
DEBUG - fetching initial value: select max(user_information_id) from user_information
DEBUG - first free id: 20

What can I do wrong ?

Hector_Lopez · **Posted:** Fri Dec 23, 2005 5:18 am

Can you post the java code you are using to save that objects? Are you sure that the UserInformation object inside User object is initialized, has the same id as the object in the DB and is the same object that session.load returns?

Bye.

Kamil Frymus · **Joined:** Wed Nov 09, 2005 11:03 am **Posts:** 5

Hi,

I find my bug.

I create new object of UserInformation and set it to User, so Hibernate find that it have null ID, so he create new row.
I had to call get method and thet change data. It was obviously my missleading.

Sorry to disturb you.

Thanks for repplay :)

Merry Christmas :)