CollectionId (Hibernate Javadocs)

@Target({METHOD,FIELD})
@Retention(RUNTIME)
public @interface CollectionId

Describe an identifier column for a bag.

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`Column`	`column`	The column containing the collection id.
`String`	`generator`	The generator name.
`Class<? extends IdentifierGenerator>`	`generatorImplementation`	Implementation for generating values.

- Element Detail
  - column
```
Column column
```
    The column containing the collection id.
    
    Default:
    
    @jakarta.persistence.Column
- - generatorImplementation
```
Class<? extends IdentifierGenerator> generatorImplementation
```
    Implementation for generating values.
    
    API Note:
    
    Mutually exclusive with generator()
    
    Default:
    
    org.hibernate.id.IdentifierGenerator.class
- - generator
```
String generator
```
    The generator name.
    Can specify either a built-in strategy ("sequence", for example) or a named JPA id generator.
    
    API Note:
    
    Mutually exclusive with generatorImplementation()
    
    Default:
    
    ""