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@Target(value={METHOD,FIELD})
@Retention(value=RUNTIME)
public @interface MapKeyIs used to specify the map key for associations of type Map. If a persistent field or property other than the primary key is used as a map key then it is expected to have a uniqueness constraint associated with it.
| Optional Element Summary | |
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String |
name
The name of the persistent field or property of the associated entity that is used as the map key. |
public abstract String name
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