父类中的@Id和基类中的唯一序列的正确JPA映射是什么

我有一个类层次结构:

abstract DomainObject {
...
    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator="SEQ")
    @SequenceGenerator(name="SEQ",sequenceName="SEQ_DB_NAME")
    @Column(name = "id", updatable = false, nullable = false)
    private Long id;
...
}

BaseClass extends DomainObject {
...
   // Fill in blank here where this class's @Id will use a unique sequence generator
   // bonus points for any sort of automatic assignment of generator names that might 
   //prevent me from having to instrument all my domain objects uniquely
...
}

• 我并不特别需要基类生成器,所以如果需要的话,我可以删除它。