In JPA 2.0 no way to use SINGLE_TABLE for entity subclass included in associations @OneToMany --------------------------------------------------------------------------------------------- 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? -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira