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@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; }
JoinColumn
Required Element Summary | |
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JoinColumn[] |
value
The join columns that map the relationship. |
Element Detail |
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public abstract JoinColumn[] value
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