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https://issues.apache.org/jira/browse/OPENJPA-212?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard Zowalla resolved OPENJPA-212.
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Resolution: Fixed
Already fixed in an earlier release (covered by
TestJPQLMultiSelectTypedResults); closing.
> Constructor expression permits no other expressions in SELECT clause
> --------------------------------------------------------------------
>
> Key: OPENJPA-212
> URL: https://issues.apache.org/jira/browse/OPENJPA-212
> Project: OpenJPA
> Issue Type: Bug
> Components: query
> Affects Versions: 0.9.7
> Reporter: Jacek Laskowski
> Priority: Major
>
> It seems that it's impossible to run a query with constructor expression
> beside other expressions in SELECT clause. Take a look at the following test
> that finishes with ClassCastException when the first element of resultQuery
> is returned (the 2nd line of the snippet). Am I doing something plain wrong?
> It doesn't work with Hibernate EntityManager 3.3.1, either yet TopLink
> Essentials 2.0 BUILD 40 runs fine.
> Query query = em.createQuery("SELECT NEW
> pl.jaceklaskowski.jpa.PewnaKlasa(p.nazwa, o.imie, o.nazwisko, o.numer), o,
> p.nazwa FROM Projekt p JOIN p.chair o");
> List<Object[]> resultQuery = query.getResultList();
> final Object[] firstElementInQueryResult = resultQuery.get(0);
> assert firstElementInQueryResult.length == 3;
> final Object firstElement = resultQuery.get(0)[0];
> assert firstElement instanceof PewnaKlasa;
> final Object secondElement = resultQuery.get(0)[1];
> assert secondElement instanceof Osoba;
> final Object thirdElement = resultQuery.get(0)[2];
> assert thirdElement instanceof String;
> The exception is as follows (the line number is different though as the test
> above is incomplete - no class, imports and alike are shown):
> java.lang.ClassCastException: pl.jaceklaskowski.jpa.PewnaKlasa
> at
> pl.jaceklaskowski.jpa.OpenJPATest.testConstructorExpr(OpenJPATest.java:19)
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