Hibernate - 拥有级联=“all-delete-orphan"的集合不再被拥有的实体实例引用 [英] Hibernate - A collection with cascade=”all-delete-orphan” was no longer referenced by the owning entity instance

问题描述

我在尝试更新我的实体时遇到以下问题:

I'm having the following issue when trying to update my entity:

"A collection with cascade="all-delete-orphan" was no longer referenced by the owning entity instance".

我有一个父实体，它有一些子实体的 Set<...>.当我尝试更新它时，我获得了要设置到此集合的所有引用并进行设置.

I have a parent entity and it has a Set<...> of some children entities. When I try to update it, I get all the references to be set to this collections and set it.

以下代码代表我的映射:

The following code represents my mapping:

@OneToMany(mappedBy = "parentEntity", fetch = FetchType.EAGER)
@Cascade({ CascadeType.ALL, CascadeType.DELETE_ORPHAN })
public Set<ChildEntity> getChildren() {
    return this.children;
}

我尝试只清理 Set<..>，根据这个:如何可能"解决问题 但它没有用.

I've tried to clean the Set<..> only, according to this: How to "possible" solve the problem but it didn't work.

如果您有任何想法，请告诉我.

If you have any ideas, please let me know.

谢谢！

推荐答案

实际上，我的问题是关于实体的 equals 和 hashcode.遗留代码会带来很多问题，千万不要忘记检查一下.我所做的只是保持删除孤儿策略和正确的等号和哈希码.

Actually, my problem was about equals and hashcode of my entities. A legacy code can bring a lot of problems, never forget to check it out. All I've done was just keep delete-orphan strategy and correct equals and hashcode.

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