[hibernate-issues] [Hibernate-JIRA] Commented: (ANN-598) Add ON clause to @ForeignKey

[Daniel Jimenez (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/ANN-598?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=33125#action_33125 ] 

Daniel Jimenez commented on ANN-598:
------------------------------------

I believe this needs to depend on:

http://opensource.atlassian.com/projects/hibernate/browse/HHH-2707


> Add ON clause to @ForeignKey
> ----------------------------
>
>                 Key: ANN-598
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-598
>             Project: Hibernate Annotations
>          Issue Type: New Feature
>          Components: binder
>            Reporter: Christian Bauer
>
> More important than it sounds:
>     @org.hibernate.annotations.ForeignKey(name = "FK_FEED_DIRECTORY_ID")
> I need ON CASCADE DELETE on many of my foreign keys, so I have to do this right now via:
> <hibernate-mapping>
>     <database-object>
>         <create>
>             alter table FEED drop constraint FK_FEED_DIRECTORY_ID;
>             alter table FEED add constraint FK_FEED_DIRECTORY_ID foreign key (DIRECTORY_ID) references NODE on delete cascade;
>         </create>
>         <drop></drop>
>     </database-object>
> </hibernate-mapping>
> This is a bit annoying, especially since @JoinColumn(columnDefinition) is also not an option - I don't want to hardcode my HSQL datatypes.
> So we should accept a parameter on @ForeignKey (I know that the Hibernate binder doesn't have that notion at all, we need it in native Hibernate as well) that accepts "[ON {DELETE | UPDATE} {CASCADE | SET DEFAULT | SET NULL}];" and does the right thing during schema export.

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