如何使Hibernate只查询默认映射?

我有一个实体类:

卷心菜

package womble;

public class Cabbage {
    private int id;
    // getters, setters, etc.
}

coball.hbm.xml

<hibernate-mapping>
  <class name="womble.Cabbage"> <!-- Using the default entity and table name. -->
    <id name="id" unsaved-value="null">
      <generator class="native"/>
    </id>
  </class>
</hibernate-mapping>

CabbageBackup.hbm.xml

<hibernate-mapping>
  <class name="womble.Cabbage" entity-name="CabbageBackup" table="cabbage_backup">
    <id name="id">
      <generator class="assigned"/>
    </id>
  </class>
</hibernate-mapping>

package womble;

public class CabbageDao {
    Session session; // Hibernate session
    String GET_MAX_ID = "select max(id) from Cabbage";

    public getLastCabbage() {
        Object lastId = session.createQuery(GET_MAX_ID).uniqueResult();
        return session.load(Cabbage.class, lastId);
    }
}

这个爆炸了一个炸弹 NonUniqueResultException :“查询未返回唯一结果:2”

通过查看日志,Hibernate显然会查询这两个表,然后将结果合并在一起。

有没有办法让Hibernate只查询实体的默认映射?(也就是说,当我使用简单的类名时,要特别防止它神奇地查询这两个映射。)