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

 Example:
 @ManyToOne
 @JoinColumns({
 @JoinColumn(name="ADDR_ID", referencedColumnName="ID"),
 @JoinColumn(name="ADDR_ZIP", referencedColumnName="ZIP")
 })
 public Address getAddress() { return address; }
 

Since:

Java Persistence 1.0

See Also:

JoinColumn, ForeignKey

• Required Element Summary

  Required Elements

  Modifier and Type	Required Element and Description
  JoinColumn[]	value The join columns that map the relationship.

• Optional Element Summary

  Optional Elements

  Modifier and Type	Optional Element and 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

    public abstract JoinColumn[] value

    The join columns that map the relationship.

• • foreignKey

    public abstract 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, the persistence provider's default foreign key strategy will apply.

    Since:

    Java Persistence 2.1

    Default:

    @javax.persistence.ForeignKey(javax.persistence.ConstraintMode.PROVIDER_DEFAULT)