[hibernate-issues] [Hibernate-JIRA] Erstellt: (HHH-2224) executeUpdate causes coarse cache invalidation

[Stefan Fleiter (JIRA)]

executeUpdate causes coarse cache invalidation
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         Key: HHH-2224
         URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2224
     Project: Hibernate3
        Type: Improvement

    Versions: 3.2.0.ga    
 Environment: Hibernate 3.2.0.ga, Oracle 9.2
    Reporter: Stefan Fleiter
 Attachments: bulk_testcase.zip

I am developing an application and want to mix bulk-updates
with normal hibernate operations.
The bulk updates work fine, but invalidate the whole region and I've found
no possibility to prevent this.

There would be 3 options to improve:
- Invalidate only the modified objects if the ids where given as Query-parameters.
- Let me deactivate the invalidation so I can invalidate the affected objects myself.
- Transform the DML to a select to gather the objects to invalidate before executing the DML

The reference documentation does not mention caching at all:
http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#batch-direct

The best documentation I've found is:
http://blog.hibernate.org/cgi-bin/blosxom.cgi/2005/07/19#dml-basic
Maybe this could be added to the reference documentation...

I already posted this at the forum
http://forum.hibernate.org/viewtopic.php?t=966775
but did not get a single answer.

I've attached a testcase for this.


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