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

[Karl Smola (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_30851 ] 

Karl Smola commented on HHH-2224:
---------------------------------

Hi Stephan,

I have been experience exactly the same issues, details of my test case and my observations  are available in this post: http://forum.hibernate.org/viewtopic.php?t=989568.

I noticed that this issue has been logged as an improvement, has the hibernate team confirmed this is the intended behavior?  I find it hard to believe that any application that uses 2nd level caching is unable to use DML or SQL style bulk updates without clearing the cache.

If it is the intended behavior then this bug need to be filed under documentation as I found no references to bulk updates or second level caching.

Regards

Karl Smolka


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