删除东西“A”在休眠中不用“A”的集合更新对象。 [英] Deleting thing "A" in hibernate does not update objects with collections of "A"

问题描述

说你有一只猫，和小猫。然后你对属于猫的小猫做了删除（）。

Say you had a Cat, with Kittens. Then you you did a delete() on a kitten that belongs to a Cat. The Cat object still has a reference to the deleted kitten, until the session closes.

避免这种情况的优雅方法是什么？

What's an elegant way to avoid this situation?

推荐答案

您应该从相关Cat的集合中删除Kitten，然后存储更新的Cat。在您的hibernate配置中，Cat和Kitten的级联为all，delete-orphan将从持久集合中删除。

You should delete the Kitten from the collection of its associated Cat then store the updated Cat. In your hibernate configuration set cascade to "all,delete-orphan" for Cat and the Kitten will be removed from the persisted collection.

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