JPA单向@OneToMany性能(JPA unidirectional @OneToMany performance)

 我有两个具有unidirectional @OneToMany Lazy关系的实体。 当我尝试添加一个孩子时，似乎Hibernate 4（我的JPA提供者）实际上正在执行 
 
 
 
 选择查询 
 
 
 删除连接表上具有该父ID的所有子项 
 
 
 在连接表上重新插入所有和新子项 
 
 
 如何让Hibernate只插入我想要的孩子，而不改变我的关系？ 

I have two entities with unidirectional @OneToMany Lazy relationship. When I try to add a child, it seems like Hibernate 4 (my JPA provider) actually performs 
 
 
 
Select query
 
 
Delete all children with that parent id on join table
 
 
Reinsert back all and the new child on join table
 
 
How to make Hibernate to just insert the child I wish, without changing my relationship?

原文：https://stackoverflow.com/questions/18333198