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https://issues.apache.org/jira/browse/OPENJPA-187?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12618523#action_12618523
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Pinaki Poddar commented on OPENJPA-187:
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This commit extends the ability to accept an unmanaged or transient instance as
query parameter. This was available for managed entities only.
This addition is limited to parameter entities with their primary key fields
populated and subjected to peer review.
This feature may also open up a discussion on how to support query-by-example
pattern.
I learned
a) 'Osoba' means 'Person' in Polish. 'Osoby' is plural
b) 'Project' is spelled 'Projekt' in Polish. It splural form is 'Projekty'
> MEMBER OF query fails on OpenJPA, but works fine with TopLink and Hibernate EM
> ------------------------------------------------------------------------------
>
> Key: OPENJPA-187
> URL: https://issues.apache.org/jira/browse/OPENJPA-187
> Project: OpenJPA
> Issue Type: New Feature
> Components: query
> Affects Versions: 0.9.7
> Reporter: Jacek Laskowski
> Assignee: Pinaki Poddar
>
> What's wrong with the following query?
> Query query = em.createQuery("SELECT DISTINCT o FROM Osoba o WHERE :projekt
> MEMBER OF o.projekty");
> query.setParameter("projekt", new Projekt("Apache OpenEJB",
> RodzajProjektu.OTWARTY));
> List<Osoba> osoby = query.getResultList();
> assert osoby.size() == 1 : "Otrzymano " + osoby.size();
> where Projekt is an entity where @Id is of type String (the first input
> parameter in the two-param constructor above).
> TopLink 2.0 BUILD 40 and Hibernate EntityManager 3.3.0.GA work fine whereas
> OpenJPA 0.9.7-SNAPSHOT finishes with the java.lang.AssertionError error (it's
> the test itself actually, but since the query returns 0 elements the issue
> originates in OpenJPA).
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