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From "Koen Rousseau (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OPENJPA-1607) Using unidirectional one-to-many target foreign key throws exception
Date Sun, 11 Sep 2011 07:37:08 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-1607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13102246#comment-13102246
] 

Koen Rousseau commented on OPENJPA-1607:
----------------------------------------

I'm running OpenJPA-2.1.1-r422266, and it still throws the above exception when trying to
model a Unidirectional OnyToMany relationship without a join table. I checked the xsd version
in persistence.xml, it is 2.0.

> Using unidirectional one-to-many target foreign key throws exception
> --------------------------------------------------------------------
>
>                 Key: OPENJPA-1607
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1607
>             Project: OpenJPA
>          Issue Type: Bug
>    Affects Versions: 2.0.0-beta3
>            Reporter: Oliver Ringel
>         Attachments: openjpa-1607.tar
>
>
> Using this simple unidirectional relationship
> @OneToMany
> @JoinColumn(name = "DEPARTMENT_ID")
> private Set<Employee> employees;
> causes to the following exception
> <openjpa-2.0.0-beta3-r422266:926797 fatal user error> org.apache.openjpa.persistence.ArgumentException:
You have supplied columns for "com.example.Department.employees", but this mapping cannot
have columns in this context.
> Unidirectional one-to-many target foreign key relationship should be supported in JPA
2.0.

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