[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-6725) Bidirectional @OneToOne(optional=true) with a foreign ID generator should force optional=false

[Steve Ebersole (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-6725?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=44972#comment-44972 ] 

Steve Ebersole commented on HHH-6725:
-------------------------------------

TBH, I dont worry about priority overly much for numerous reasons.  Howeverm you know how I worry about versions :)  Will you really be getting to this for 4.0.1?

> Bidirectional @OneToOne(optional=true) with a foreign ID generator should force optional=false
> ----------------------------------------------------------------------------------------------
>
>                 Key: HHH-6725
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6725
>             Project: Hibernate Core
>          Issue Type: Improvement
>            Reporter: Gail Badner
>            Assignee: Gail Badner
>             Fix For: 4.0.1
>
>
> When a foreign ID generator is used with @OneToOne(optional=true), Hibernate should:
> - force optional=false
> - log a warning
> The default for @OneToOne is optional=true
> This should be done when a foreign ID generator is used 
> - with @OneToOne @PrimaryKeyJoinColumn
> - with @OneToOne(mappedBy="...")
> Currently, Hibernate allows the one-to-one association to be optional, but if the association is set to null, IdentifierGenerationException is thrown. 
> I don't think it's possible to check for a ForeignGenerator until the SessionFactory or persister is being built with a Configuration object.

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