javax.persistence
Annotation Type JoinColumns


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

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:
Java Persistence 1.0
See Also:
JoinColumn

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

Element Detail

value

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



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Generated on 10-February-2011 12:41


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