JoinColumns

```
@Target({METHOD,FIELD})
@Retention(RUNTIME)
public @interface JoinColumns
```
Specifies the mapping for composite foreign keys. This annotation groups JoinColumn annotations for the same relationship.
Each JoinColumn annotation must explicit specify both name and referencedColumnName.
Example: {@snippet :

Since:

1.0

See Also:

JoinColumn, ForeignKey

Required Element Summary

Required Elements
Modifier and Type Required Element Description

JoinColumn[] value
The join columns that map the relationship.

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`ForeignKey`	`foreignKey`	(Optional) Used to specify or control the generation of a foreign key constraint when table generation is in effect.

- Element Detail
  - value
```
JoinColumn[] value
```
    The join columns that map the relationship.
- - foreignKey
```
ForeignKey foreignKey
```
    (Optional) Used to specify or control the generation of a foreign key constraint when table generation is in effect. If both this element and the foreignKey element of any of the JoinColumn elements are specified, the behavior is undefined. If no foreign key annotation element is specified in either location, a default foreign key strategy is selected by the persistence provider.
    
    Since:
    
    2.1
    
    Default:
    
    @jakarta.persistence.ForeignKey(jakarta.persistence.ConstraintMode.PROVIDER_DEFAULT)