Hibernate一个一对多的配置，不知道怎么从xml改为注解

Question

我详细贴出代码说下吧

 

类的关系是：

 

  目录：SiteDirectory继承Directory
  目录关系：SiteDirectorySubjection继承DirectorySubjection

 

public class Directory extends BasePojo {
        private Set<? extends DirectorySubjection> subjections; //目录的上级目录
    private Set<? extends DirectorySubjection> childSubjections; //目录的下级目录
...
}

public class DirectorySubjection extends BasePojo {
    
    private long directoryId; //目录ID
    private long parentDirectoryId; //上级目录ID
...
}

public class SiteDirectory extends Directory {
...
}

public class SiteDirectorySubjection extends DirectorySubjection {
...
}

 以前没用泛型，xml配置如下

<class name="XXX.XXX.XXX.XXX.pojo.SiteDirectory" table="site_directory">
...
<set cascade="delete" inverse="true" lazy="true" name="subjections" table="site_directory_subjection" order-by="id">
            <key column="directoryId" />
            <one-to-many class="XXX.XXX.XXX.pojo.SitebDirectorySubjection" />
        </set>
        <set cascade="delete" inverse="true" lazy="true" name="childSubjections" table="site_directory_subjection">
            <key column="parentDirectoryId" />
            <one-to-many class="XXX.XXX.XXX.pojo.SiteDirectorySubjection" />
        </set>
...

 现在加上了泛型，用注解方式怎么配置

 

我只有30分，全部都奉上了，帮忙下

Answer 1

需要什么样的关系就配什么关系就可以了，需要公用的就放在最基本的那个pojo里，其他的需要扩展的就继承。不是还有override呢么，不行就override了。