[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-4982) JPA OneToOne(optional=true) not supported, supported alternative NotFound() is hibernate-proprietary!

[Gail Badner (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-4982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=39610#action_39610 ] 

Gail Badner commented on HHH-4982:
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There is conflicting information here.

Is JPA OneToOne(optional=true) working in general, but broken in particular use cases?

Please try 3.6.0. If you are having a problem with a particular use case, please check to see if there is already an issue reported for your use case and link this issue to that one.

> JPA OneToOne(optional=true) not supported, supported alternative NotFound() is hibernate-proprietary!
> -----------------------------------------------------------------------------------------------------
>
>                 Key: HHH-4982
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4982
>             Project: Hibernate Core
>          Issue Type: Bug
>    Affects Versions: 3.5.5
>         Environment: Hibernate 3.3.1, annotations 3.4.0, MsSQL DB.
>            Reporter: Bruno Melloni
>
> Rejected issue ANN-725 covers this partially.  I might have misunderstood, but it seems the reason for rejecting is that @NotFound provides the same capability.
> All information I could find for JPA and other ORM tools indicates that this capability is supplied by @OneToOne(optional=true).  Hibernate seems to be the lone ORM tool that requires the use of a proprietary annotation: @NotFound.
> @NotFound works, but the problem is that it makes the application no longer be pure-JPA.  Not supporting pure-JPA outer joins would seem to be a major bug.

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