[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5775) Support session filters in DML statements

[Steve Skrla (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=39284#action_39284 ] 

Steve Skrla commented on HHH-5775:
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I am sure there are numerous reasons why this was done, and I wouldn't expect the default behavior to change in such a drastic way. However, an option to include deletes and updates in filtering would be wonderful.

> Support session filters in DML statements
> -----------------------------------------
>
>                 Key: HHH-5775
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5775
>             Project: Hibernate Core
>          Issue Type: Improvement
>          Components: core, query-hql
>            Reporter: Jason Clawson
>
> We are using filters to support multi-tenency, an approach alluded to in this recent blog post: http://in.relation.to/Bloggers/MultitenancyInHibernate.  It works create for HQL selects but doesn't work for Updates / Deletes.  Looking through the source code, this seems to have been a conscious choice as some comments indicate.  If filters are meant to be used for multitenency, this seems to be the wrong choice.  I would like to see session filters affect updates and deletes.  This seems very logical because if I run the select:  SELECT * FROM User which is affected by a filter and returns 2 users, and then execute DELETE FROM User which deletes all the users in the system--- thats not what I would expect to happen.
> I believe this will require modifications to HqlSqlWalker and the ANTLR script sql-gen.g.  I am looking into what other modifications are necessary, but I would appreciate it if the Hibernate folks could take a look since they would be most familiar with the code and the decisions behind it.
> Thanks!

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