.net - 休眠级联

Question

什么级联在 Nhibernate意思？

我在级联中看到了很多选项:

删除

全部

AllDeleteOrphan

删除孤儿

保存更新

你能用例子和它们的区别来解释这些吗？

Answer 1

这意味着将操作应用于项目的相关项目。

请参阅:NHibernate Cascades: the different between all, all-delete-orphans and save-update :

• none - do not do any cascades, let users handle them by themselves.

• save-update - when the object is saved/updated, check the associations and save/update any object that requires it (including save/update the associations in many-to-many scenario).

• delete - when the object is deleted, delete all the objects in the association.

• delete-orphan - when the object is deleted, delete all the objects in the association. In addition, when an object is removed from the association and not associated with another object (orphaned), also delete it.

• all - when an object is save/update/delete, check the associations and save/update/delete all the objects found.

• all-delete-orphan - when an object is save/update/delete, check the associations and save/update/delete all the objects found. In additional to that, when an object is removed from the association and not associated with another object (orphaned), also delete it.