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From "Pinaki Poddar (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (OPENJPA-207) failure when composite ID has another composite ID as a field
Date Fri, 01 May 2009 01:03:30 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-207?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pinaki Poddar resolved OPENJPA-207.
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 2.0.0

> failure when composite ID has another composite ID as a field 
> --------------------------------------------------------------
>
>                 Key: OPENJPA-207
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-207
>             Project: OpenJPA
>          Issue Type: Bug
>    Affects Versions: 0.9.6
>         Environment: derby
> jdk 1.5.0_07
>            Reporter: Jeffrey Blattman
>            Assignee: Pinaki Poddar
>             Fix For: 2.0.0
>
>         Attachments: book.zip
>
>
> see attached test case: entities Library, Book, and Page. there is a one-many bidirectional
relationship between Library and Book, and Book and Page. a Library's ID is simply it's name.
a Book's ID is it's name, plus it's owning library's ID. A Page's ID is it's number, plus
it's owning Book's ID. 
> this arrangement results in composite IDs for Book and Page. and moreover, Page's composite
ID, PageId, contains a page number field plus a BookId. however, this arrangement results
in an exception at runtime w/ the included test case ...
> ...
>  Caused by: java.lang.ClassCastException: org.apache.openjpa.util.ObjectId
>  at com.mycompany.book.Page.pcCopyKeyFieldsToObjectId(Page.java)
>  at org.apache.openjpa.util.ApplicationIds.create(ApplicationIds.java:383)
>  at org.apache.openjpa.kernel.BrokerImpl.persist(BrokerImpl.java:2349) 
> note that if i remove the bookId field from PageId, the test case succeeds. 
> also note that this problem is also observed against a trunk field from march 3 (0.9.7
snapshot).

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