[hibernate-issues] [Hibernate-JIRA] Commented: (JPA-16) duplicated id column when abstract id methods are defined in a @MappedSuperclass

[Constantino Cronemberger (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/JPA-16?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=42612#action_42612 ] 

Constantino Cronemberger commented on JPA-16:
---------------------------------------------

The workaround is simple: create a super class (not annotated with @MappedSuperclass) for BaseEntity and move the declaration of the abstract methods to this class.

> duplicated id column when abstract id methods are defined in a @MappedSuperclass
> --------------------------------------------------------------------------------
>
>                 Key: JPA-16
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/JPA-16
>             Project: Java Persistence API
>          Issue Type: Bug
>         Environment: Database H2, Hibernate 3.6.4.Final
>            Reporter: Constantino Cronemberger
>            Priority: Minor
>
> The following classes:
> @MappedSuperclass
> public abstract class BaseEntity {
>     public abstract Long getId();
>     public abstract void setId(Long id);
> }
> @Entity
> @Table(name="STCB")
> public class SimpleTestClassB extends BaseEntity {
>     
>     private Long primaryKey;
>     
>     @Override
>     @Id
>     @Column(nullable = false, precision = 10, name = "sb_id")
>     public Long getId() {
>         return primaryKey;
>     }
>     @Override
>     public void setId(Long primaryKey) {
>         this.primaryKey = primaryKey;
>     }
> }
> will generate the following table:
> create table STCB (sb_id number(19,0) not null, id number(19,0), primary key (sb_id));

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