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https://issues.apache.org/jira/browse/OPENJPA-1607?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard Zowalla resolved OPENJPA-1607.
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Resolution: Fixed
Already fixed on master: 8c1e1a7ea (OPENJPA-1253) is on master;
RelationToManyInverseKeyFieldStrategy.map
(openjpa-jdbc/.../strats/RelationToManyInverseKeyFieldStrategy.java:124-132)
skips assertNoSchemaComponents for uni-directional 1-M when non-default mapping
is allowed (JPA 2.0+), so the error now only appears for spec-1.0 units.
Closing; please reopen if this still happens with OpenJPA 4.x.
> 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
> Priority: Major
> 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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