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关于inverse 和cascade属性的问题

在多对多关系中，双方都持有对方的集合，比方Student 和Teacher 这两个类。在配置映射关系的时候，如果我选择Teacher方为维护双方的关联关系的一方，那么inverse和cascade这两个属性应该在student.hbm.xml配置还是teacher.hbm.xml文件中配置呢？inverse = true表示由对方维护，而inverse是Set的子元素，是不是意味着我应该在teacher.hbm.xml的Set中配置呢？？我对这点一直比较晕，希望有人指点下

ypcFly

2017-08-01

源自：Hibernate初探之多对多映射  3-1

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weixin_慕工程1563154
2022-03-30
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慕侠_Ives
2017-08-01

Teacher维护关联关系的话，就意味着Student要放弃关联维护，所以需要在Student的映射文件中<set>中设置 inverse = true，让Student放弃关联维护；

同样的，既然是Teacher来维护关联关系，那么就应该在Teacher的映射文件的<set>中设置cascade，让Teacher维护。


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#1

ypcFly 提问者

cascade哪方维护关联关系在哪方的映射文件配置！inverse属性在维护关联关系的一方设置为false，不维护关联关系的设置为true，是这样吗？？
2017-08-01 回复 有任何疑惑可以回复我~
#2

慕侠_Ives 回复 ypcFly 提问者

many-to-many关联关系中，一端设置inverse=”false”，另一端设置为inverse=”true”。 one-to-many关联关系中，让one端设置inverse=”true”,由多端来维护关系表。根据需求，两张表都可以设置cascade，但一般不建议使用，尤其是delete。
2017-08-01 回复 有任何疑惑可以回复我~

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Hibernate初探之多对多映射
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Hibernate中多对多关联映射的配置，多对多关联关系的应用场景

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