Questions tagged [orphan-removal]
7 questions
231
votes
8 answers
How does JPA orphanRemoval=true differ from the ON DELETE CASCADE DML clause
I am a little confused about the JPA 2.0 orphanRemoval attribute.
I think I can see it is needed when I use my JPA provider's DB generation tools to create the underlying database DDL to have an ON DELETE CASCADE on the particular relation.
However,…
Markos Fragkakis
- 7,499
- 18
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- 103
136
votes
5 answers
What is the difference between CascadeType.REMOVE and orphanRemoval in JPA?
What's the difference between
@OneToMany(cascade=REMOVE, mappedBy="customer")
public List getOrders() { ... }
and
@OneToMany(mappedBy="customer", orphanRemoval="true")
public List getOrders() { ... }
This example is from Java EE…
rand0m86
- 3,172
- 4
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0
votes
0 answers
Does JPA delete items from collection even without Orphan removal= true
I have the below JPA entities defined with bidirectional one-to-many mapping.
I observed that delete SQL statement is fired when a comment is removed from a list on post(post.removeComment(...)) even without setting orphan removal = true or making…
swathi manda
- 101
- 1
- 7
0
votes
0 answers
Does direction of join condition matter in left joins?
There are two postgres tables with roughly the following structures:
products
+----+-----------+
| id | rawDataId |
+----+-----------+
| 1 | a |
+----+-----------+
| 2 | null |
+----+-----------+
| 3 | b …
GothamCityRises
- 2,072
- 2
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- 43
0
votes
1 answer
Hibernate: remove and add the same entity with orphanRemoval, the entity is removed
I have a strange behavior with Hibernate. My environment is Quarkus with Panache but I think it's not really related to the issue.
I'm using a simple tree entity with an id, parent and children.
My moveInto method just moved a child into another…
Guyard
- 53
- 6
0
votes
1 answer
moving an entity into another owned OneToMany Collection
In my application, there is a Person entity that has numerous roles of type PersonRole.
@Entity
public class Person {
@OneToMany(mappedBy = "person",
cascade=CascadeType.ALL,
orphanRemoval=true,
…
EasterBunnyBugSmasher
- 1,507
- 2
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- 34
0
votes
1 answer
Unable to remove childs in OneToMany Mapping and add new childs [Hibernate]
I know this question has been asked many times but none of the solution is working for me.
So I have a Parent class :
class User{
@Id
@NotNull
@Column(name = "`UserId`", nullable = false)
private Long userId;
@OneToMany(cascade = CascadeType.ALL,…
DALJIT SINGH
- 111
- 1
- 11