Why to add orphanRemoval = true when CascadeAll

Asked Sep 26 '19 at 06:52

Active Sep 26 '19 at 06:52

Viewed 43 times

I updated my entity which has a oneToMany relationship expressed as a Set .

So I am using cascade = CascadeType.ALL . So when I added something to the set and updated my entity everything was fine.

But when I removed a child from SET and then updated it it was not removed from the cild table. It was stil in the database.

So I used orphanRemoval = true and yes it also was removed from the child table. Why when already using cascade = CascadeType.ALL which should include CascadeType.Remove I still have to say orphanRemoval = true ?

asked Sep 26 '19 at 06:52

Flo19

CascadeType.Remove means that the related entities are deleted when the owning entity is deleted – Oleksii Valuiskyi Sep 26 '19 at 07:21
orphanRemoval = true means that related entity is deleted when set is not contain it and owning entity is saved – Oleksii Valuiskyi Sep 26 '19 at 07:24
1

Possible duplicate of [JPA 2.0 orphanRemoval=true VS on delete Cascade](https://stackoverflow.com/questions/4329577/jpa-2-0-orphanremoval-true-vs-on-delete-cascade) – Simon Martinelli Sep 26 '19 at 07:56
does Cascade.All include all the other CASCADEs like merge,remove,request ? – Flo19 Sep 26 '19 at 08:05
@Flo19 Yes, cascade type all is shorthand for all of the cascade operations. – Oleksii Valuiskyi Sep 26 '19 at 09:11
is Cascade.Persist same as orphanRemoval = true ? – Flo19 Sep 26 '19 at 09:43
@Flo19 No, CascadeTypes has nothing to do with orphanRemoval. Here is explanation of Cascade types meaning https://examples.javacodegeeks.com/enterprise-java/hibernate/hibernate-cascadetype-persist-example/ – Oleksii Valuiskyi Sep 26 '19 at 12:14
what does CascadeType.PERSIST mean ? if I do not use this, related entities would not be saved ?? – Flo19 Sep 26 '19 at 12:48
@Flo19 CascadeType.PERSIST means that related entity is saved when the owning entity is saved – Oleksii Valuiskyi Sep 26 '19 at 13:16
yeah but it seems only it adds but does not remove old stuff, that's why I needed orphanRemoval = true – Flo19 Sep 26 '19 at 14:29

Why to add orphanRemoval = true when CascadeAll

0 Answers0