@CascadeOnDelete和CascadeType.REMOVE批注有什么区别？

Question

At first I've expected that with CascadeType.REMOVE I'll be able to delete foreign keys in my table , but I sill got an exception. But with @CascadeOnDelete it's ok .What's the difference between the two annotations?

EDIT: I've saw the DataNucleus' comment.Cascade on delete comes from org.eclipse.persistence.annotations.CascadeOnDelete .Which raises the question how good idea is to be used.

Answer 1

当您使用CascadeType.Remove时，级联将由ORM工具处理，但是当您希望由数据库处理级联时，可以使用@CascadeOnDelete。但是，当您使用@CascadeOnDelete时，请确保您使用的数据库是使用应支持级联。