javax.persistence.JoinColumns - JPA annotation
javax.persistence
Annotation JoinColumns
- Target:
- Fields (including property get methods)
Defines mapping for composite foreign keys. This annotation groups
JoinColumn
annotations for the same relationship. When the JoinColumns
annotation is used, both the name
and the referencedColumnName
elements must be specified in each such JoinColumn
annotation.
Example:
@ManyToOne @JoinColumns({ @JoinColumn(name="ADDR_ID", referencedColumnName="ID"), @JoinColumn(name="ADDR_ZIP", referencedColumnName="ZIP") }) public Address getAddress() { return address; }
- Since:
- JPA 1.0
- See Also:
- JoinColumn
The join columns that map the relationship.
- Since:
- JPA 1.0