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Re:hibernate annotation多对多问题：insert关系前先delete [Re:yqf0215]

JiafanZhou

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发贴: 736
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于 2007-11-30 23:23

yqf0215 wrote:
HenryShanley 你好强，但确实很多时候，还是需要manytomany的啊，例如学生上课，一个学生上多门课，一门课有多个学生，如果改用2个manytoone，还是有些不方便啊

Nope, all the many-to-many relationships can all be simplified to many-to-one, and this is exactly Gavin King suggested us to do. And it is clearly stated in the "Hibernate in Action" book.

Try to map both ends <many-to-one> and see if this works. Let me know if this is still a problem for you.

Regards,
Jiafan

When I was a kid I used to pray every night for a new bike. Then I realized that The Lord doesn't work that way, so I stole one and asked him to forgive me.

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人气	标题	作者	字数	发贴时间
12565	hibernate annotation多对多问题：insert关系前先delete	yqf0215	2638	2007-10-17 09:32
9758	Re:hibernate annotation多对多问题：insert关系前先delete	yqf0215	7	2007-10-24 09:11
9730	Re:hibernate annotation多对多问题：insert关系前先delete	JiafanZhou	1954	2007-10-24 17:02
9902	Re:hibernate annotation多对多问题：insert关系前先delete	yqf0215	91	2007-10-29 10:18
10074	Re:hibernate annotation多对多问题：insert关系前先delete	JiafanZhou	451	2007-11-30 23:23

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