[hibernate-issues] [Hibernate-JIRA] Created: (ANN-848) Bidirectional Polymorphism

Bidirectional Polymorphism -------------------------- Key: ANN-848 URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-848 Project: Hibernate Annotations Issue Type: New Feature Components: binder Affects Versions: 3.4.0.GA Environment: 3.4.0.GA, Any database Reporter: Yong Joo Jeong I'm trying to implement bidirectional polymorphic class. Code: public class Order{ ... @Any( metaColumn = @Column( name = "item_type" ), fetch=FetchType.EAGER ) @AnyMetaDef( idType = "long", metaType = "string", metaValues = { @MetaValue( value = "ItemA", targetEntity = ItemA.class ), @MetaValue( value = "ItemB", targetEntity = ItemB.class ) } ) @JoinColumn( name = "item_id" ) Object item; ... } And trying to do somthing like the following Code: public class ItemA { @OneToAny // like @OneToMany; in Order table there are "item_id" and "item_type" fields to distinguish ItemA and ItemB List<Order> orders; ... } RoR support this kind of relationship, but I can't find it from Hibernate. Inheritance with "Table per class" is not an option since it does not support the IDENTITY generator strategy. Any solution for this? -- 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