[hibernate-issues] [Hibernate-JIRA] Created: (ANN-681) @OneToOne Object references can't be used as @Id

[__dk__ (JIRA)]

@OneToOne Object references can't be used as @Id
------------------------------------------------

                 Key: ANN-681
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-681
             Project: Hibernate Annotations
          Issue Type: Bug
          Components: binder
    Affects Versions: 3.3.0.ga
            Reporter: __dk__


Is this related to ANN-619, or is it in general impossible to use object refs as IDs? Don't know:

Dummy:

class B {
  @Id
  [... Generator ...]
  long id;
}

This works:

class A {
  @Id
  long id;
	
  @OneToOne(optional=false, fetch=FetchType.LAZY)
  @JoinColumn(name="B_ID", nullable=false, updatable=false)
  B b;
}

This doesn't:

class A {
  @Id
  @OneToOne(optional=false, fetch=FetchType.LAZY)
  @JoinColumn(name="B_ID", nullable=false, updatable=false)
  B b;
}

Output:

05:59:11 FATAL [artcollector.welt.Persistence] Exception: 
org.hibernate.MappingException: Could not determine type for: test.B, for columns: [org.hibernate.mapping.Column(b_id)]
	at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:266)
	at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:253)
	at org.hibernate.mapping.RootClass.validate(RootClass.java:193)
	at org.hibernate.cfg.Configuration.validate(Configuration.java:1102)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1287)
	at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:915)
	at test.Persistence.init(Persistence.java:33)


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