[hibernate-issues] [Hibernate-JIRA] Created: (HHH-5965) In JPA 2.0 no way to use SINGLE_TABLE for entity subclass included in associations @OneToMany

[Andrea Folli (JIRA)]

In JPA 2.0 no way to use SINGLE_TABLE for entity subclass included in associations @OneToMany
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                 Key: HHH-5965
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5965
             Project: Hibernate Core
          Issue Type: Improvement
          Components: core
    Affects Versions: 3.6.1
         Environment: All
            Reporter: Andrea Folli
            Priority: Critical


We use SINGLE_TABLE Mapping Strategy to collapse on a single table several Entity Classes sharing a lot of persistent fields.

When two of these entities are associated to a master entity via @OneToMany and we load the master entity with FetchType.EAGER for the two associations, we get a ClassCastException due to a bad behavoiur of Hibernate..
In fact it loads for both associtions all the entities associated by FK to the master entity, (regrdless of Discriminator Values).

We know there is the @ForceDiscriminator annotations, but there is not an equivalento in JPA 2.0 implemenmtation, 

Please can you reveal your strategy for this issue?

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