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sfarrell
 Post subject: null index column for collection
PostPosted: Tue Sep 09, 2003 7:35 pm 
Newbie

Joined: Tue Sep 02, 2003 8:57 pm
Posts: 5
I keep getting this problem with my collections. Hibernate (2.0.3) saves them with the index value null, and then gets very upset when it tries to load them in the future. How could this happen? I'm not doing anything weird, I don't think. They are lists. Here is an example of the mapping:

Code:
       <list
            name="associations"
            lazy="true"
            inverse="false"
            cascade="all"
        >

              <key
                  column="key"
              />

              <index
                  column="idx"
              />

              <one-to-many
                  class="com.foo.Whatever"
              />
        </list>
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gavin
 Post subject:
PostPosted: Tue Sep 09, 2003 9:59 pm 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 12:50 pm
Posts: 5130
Location: Melbourne, Australia
If you set inverse="true", the collection does not propagate its own state to the database. So, if you have an index column that is not mapped anywhere else, it will not be updated.
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gavin
 Post subject:
PostPosted: Wed Sep 10, 2003 9:25 am 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 12:50 pm
Posts: 5130
Location: Melbourne, Australia
hold on: my answer is only correct if inverse="true".


Are you *sure* you don't have inverse="true"??
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sfarrell
 Post subject:
PostPosted: Wed Sep 10, 2003 1:51 pm 
Newbie

Joined: Tue Sep 02, 2003 8:57 pm
Posts: 5
Yeah I think it did say "true", I had been switching it.
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