Stack Overflow
Stack Overflow

Questions tagged [naturalid]

In Hibernate, this specifies that a property is part of the natural id of the entity.

org.hibernate.annotations

Annotation Type NaturalId

@Target(value={METHOD,FIELD})
@Retention(value=RUNTIME)

public @interface NaturalId

This specifies that a property is part of the natural id of the entity.

Source

10 questions
13
votes
2 answers

JPA equivalent to Hibernate's @NaturalId

In Hibernate I can create a unique key using @NaturalId on several properties of the entity. Is there a JPA equivalent annotation, something that is a part of javax.persistence?
Ido Barash
  • 4,856
  • 11
  • 41
  • 78
6
votes
1 answer

Hibernate @ManyToOne Referenced Class using @NaturalId instead of @Id

I have some Hibernate/JPA annotations (still don't know the difference to be honest) that are allowing me to create an association class. This class is combining two items that are related into one object. I originally was using @JoinTable but…
Walls
  • 3,972
  • 6
  • 37
  • 52
4
votes
1 answer

Hibernate 5.2 get natural id properties from metamodel

Since SessionFactory#getClassMetadata(java.lang.Class) was deprecated, I am not able to use ClassMetadata. I would like to access to the following…
jmgoyesc
  • 2,677
  • 1
  • 18
  • 16
2
votes
3 answers

Using Primiry Key (id) while overriding equals() and hashCode() methods

I am really too confused with the equals() and hashCode() methods after reading lots of documentation and articles. Mainly, there are different kind of examples and usages that makes me too confused. So, could you clarify me about the following…
user19254373
2
votes
1 answer

How to fetch multiple entities by a list of natural ids with Hiberate or JPA repository?

If I have a list of natural Ids, how can I fetch all the records in the DB associated with these natural Ids at once? All I've seen are methods that let you find an entity by a natural Id, an example of one is shown below. @Override public…
Aram
  • 35
  • 1
  • 6
2
votes
1 answer

Hibernate entity caching using natural id

I have an entity Note which is joined by field 'code' in Dictionary. I would like to fetch all notes but there is n+1 problem . When I'm fetching notes hibernate also fetching data from table Dicionary , one additional query per one note (if the…
Grzesiek
  • 41
  • 3
2
votes
1 answer

Composite @NaturalId in Hibernate entity

For generation id's of entities application uses trigger. So, for assigning generated values to entities we use constructions like this: @Id @Column(name = "INVOICE_ID") @GeneratedValue(generator = "trigger") @GenericGenerator(name = "trigger",…
biven
  • 132
  • 3
  • 9
0
votes
0 answers

hibernate v6 performance degradation with @NaturalID

We moved to hibernate 6 (along with Spring Boot 3) and have some performance problems. Our entity looks like this: @Entity public class MobileDeviceToken { @Id private int id = 0; @NaturalId private String dienst; @NaturalId private…
Janning Vygen
  • 8,877
  • 9
  • 71
  • 102
0
votes
1 answer

Why should I use @NaturalId?

When I am looking for @NaturalId and trying to understand what the advantages of using it is. I am reading several articles like this article. @Entity(name = "Post") @Table(name = "post") @org.hibernate.annotations.Cache( usage =…
user19600914
0
votes
1 answer

How to map a @ManyToOne association using a non-Primary Key in Hibernate?

How to map a @ManyToOne association using a non-Primary Key in Hibernate? I can use a @NaturalId annotation, but sill have a error: A Foreign key refering POJO.Question from POJO.Answer has the wrong number of column. should be 4 Question class…
Eiten
  • 73
  • 8