[hibernate-issues] [Hibernate-JIRA] Created: (HHH-3169) 3.2.6 breaks implicit join for collections

[Michael Newcomb (JIRA)]

3.2.6 breaks implicit join for collections
------------------------------------------

                 Key: HHH-3169
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3169
             Project: Hibernate3
          Issue Type: Bug
          Components: query-hql
    Affects Versions: 3.2.6
            Reporter: Michael Newcomb


The implicit join query "Cat.by.kitten.name2" below works fine in 3.2.5, but will fail to initialize in 3.2.6:

import java.util.Set;
import java.util.HashSet;
import java.util.List;

import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Entity;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.Query;

@Entity
@NamedQueries(value = {
@NamedQuery(
  name = "Cat.by.kitten.name",
  query = "select c from Cat c inner join c.kittens as kitten with kitten.name=:name"),
@NamedQuery(
  name = "Cat.by.kitten.name2",
  query = "select c from Cat c where c.kittens.name=:name")
  }
)
public class Cat
{
  @Id
  protected String name;

  @OneToMany
  protected Set<Cat> kittens = new HashSet<Cat>();

  public Cat(String name)
  {
    this.name = name;
  }

  public Set<Cat> getKittens()
  {
    return kittens;
  }

  public static void main(String... args)
  {
    EntityManager entityManager;

    entityManager.getTransaction().begin();

    Cat mom = new Cat("mom1");
    Cat kitten1 = new Cat("mom1.kitten1");
    Cat kitten2 = new Cat("mom1.kitten2");

    entityManager.persist(mom);
    entityManager.persist(kitten1);
    entityManager.persist(kitten2);

    mom.getKittens().add(kitten1);
    mom.getKittens().add(kitten2);

    mom = new Cat("mom2");
    kitten1 = new Cat("mom2.kitten1");
    kitten2 = new Cat("mom2.kitten2");

    entityManager.persist(mom);
    entityManager.persist(kitten1);
    entityManager.persist(kitten2);

    mom.getKittens().add(kitten1);
    mom.getKittens().add(kitten2);

    entityManager.getTransaction().commit();

    Query query = entityManager.createNamedQuery("Cat.by.kitten.name");
    query.setParameter("name", "mom1.kitten1");
    for (Cat cat : (List<Cat>) query.getResultList())
    {
      System.out.println(cat.name);
    }

    query = entityManager.createNamedQuery("Cat.by.kitten.name2");
    query.setParameter("name", "mom1.kitten1");
    for (Cat cat : (List<Cat>) query.getResultList())
    {
      System.out.println(cat.name);
    }
  }
}


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