[hibernate-issues] [Hibernate-JIRA] Créée: (HHH-2060) To be able to use <generator> with <composite-id>

[Xavier Brénuchon (JIRA)]

To be able to use <generator> with <composite-id>
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         Key: HHH-2060
         URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2060
     Project: Hibernate3
        Type: Improvement

    Versions: 3.2.0.cr4    
 Environment: Hibernate 3.x
    Reporter: Xavier Brénuchon


Hello, 

This is the continuation of HB-389

We develop an application which has very strong need for performance with several tens of million recordings. Partitioning is a need.
So for that, I use <composite-id>. But my primary key is not a natural key, but a real technical key :
 - column of partitioning for optimization of the data base 
 - column of technical id

So I need to have a generator, for exemple :

    <composite-id name="id" class="IdPartition">
        <key-property name="org" type="string" column="ORG"/>
        <key-property name="id" type="long" column="ID"/>
        <generator class="fr.test.xavier.IdPartitionGenerator">
            <param name="table">TAB_SEQ</param>
            <param name="column">LAST</param>
        </generator>
    </composite-id>

The good news is that Hibernate can use that (HB-389).
In fact, it is enough to modify the DTD to authorize <generator> in <composite-id> and it is all. The current code of Hibernate manages it very well. 

Is it possible that Hibernate is enriched by this functionality?


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