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Posted to dev@openjpa.apache.org by "Pinaki Poddar (JIRA)" <ji...@apache.org> on 2008/08/10 22:03:44 UTC

[jira] Commented: (OPENJPA-689) @ID define in super class

    [ https://issues.apache.org/jira/browse/OPENJPA-689?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12621302#action_12621302 ] 

Pinaki Poddar commented on OPENJPA-689:
---------------------------------------

Description of this issue is not clear enough.
Can you please elaborate further what is the problem being encountered when entities inherit from a @MappedSuperclass?
 
It may be worthwhile to discuss any potential issue in the OpenJPA user group before creating a JIRA issue.


> @ID define in super class
> -------------------------
>
>                 Key: OPENJPA-689
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-689
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: kernel
>    Affects Versions: 1.1.0
>            Reporter: wilesun
>             Fix For: 1.1.1
>
>
> our entities have share super class,the class has one field define the entity id,so we define the class as mappedsuperclass
> when we work with hibernate JPA,it work fine.
> but migrate to openjpa,the PCEnhancer don't assign other entity has ID class,so the query sql is incorrect.
> example:
> @MappedSuperclass
> public EntityBase {
>     @Id
>     @Column(name="ID")
>     private String id;
> }
> @Entity
> public B extends EntityBase {
> }
> @Entity
> public C extends EntityBase {
> }
> Object o = em.find(B.class, "111");
> the sql list:
> select * from A where id=?
> select * from B where id=?

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