Nhibernate中的多个主键？

Question

如何在NHibernate中映射时分配多个主键？

    Id(x => x.TopicID); <<----Primary Key
        Map(x => x.Topic);   <<---Should Also be a Primary Key
        Map(x => x.Subtitle);
        Map(x => x.Description);
        Map(x => x.ImageURL);

    }

Answer 1

使用CompositeID方法：

CompositeId()
.KeyProperty(x => x.TopicId, "name")
.KeyReference(x => x.Topic, "anotherName");