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Posted to dev@openjpa.apache.org by "Andras Szerdahelyi (Commented) (JIRA)" <ji...@apache.org> on 2011/10/11 12:51:11 UTC
[jira] [Commented] (OPENJPA-1253) JoinColumn annotation not allowed
in conjunction with *ToMany annotation
[ https://issues.apache.org/jira/browse/OPENJPA-1253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13124924#comment-13124924 ]
Andras Szerdahelyi commented on OPENJPA-1253:
---------------------------------------------
for anyone who is google-ing this, i got the same exception despite being on the 2.0 spec, the problem was the entity referred in the relationship was not listed in persistence.xml..
<class>package.RelatedEntity</class>
> JoinColumn annotation not allowed in conjunction with *ToMany annotation
> ------------------------------------------------------------------------
>
> Key: OPENJPA-1253
> URL: https://issues.apache.org/jira/browse/OPENJPA-1253
> Project: OpenJPA
> Issue Type: Bug
> Components: jdbc
> Affects Versions: 2.0.0-M1, 2.0.0-M2, 2.0.0-M3
> Reporter: Rick Curtis
> Assignee: Fay Wang
> Fix For: 2.0.0-M3
>
>
> I receive the following exception if I have an Entity with a One(Many)ToMany relationship with another Entity.
> <openjpa-2.0.0-SNAPSHOT-r422266:805588 fatal user error> org.apache.openjpa.persistence.ArgumentException: You have supplied columns for "....Entity", but this mapping cannot have columns in this context.
> To recreate the failure, add a @JoinColumn annotation to one of the *ToMany relationships in org.apache.openjpa.persistence.jdbc.annotations.AnnoTest1.
> example:
> @MapKey(name = "basic")
> @OneToMany(mappedBy = "oneManyOwner")
> @JoinColumn(name = "asdf")
> protected Map<String, AnnoTest2> inverseOwnerMapKey = new HashMap();
> Then run:
> trunk\openjpa-parent\openjpa-persistence-jdbc>mvn test -Dtest=org.apache.openjpa.persistence.jdbc.annotations.TestOneToMany
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