javax.persistence
Annotation Type JoinColumns
@Target(value={METHOD,FIELD})
@Retention(value=RUNTIME)
public @interface JoinColumns
Defines mapping for the 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:
- Java Persistence 1.0
value
public abstract JoinColumn[] value
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