org.hibernate.annotations
Annotation Type MapKey

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

Define the map key columns as an explicit column holding the map key This is completly different from MapKey which use an existing column This annotation and MapKey are mutually exclusive

Author:

Emmanuel Bernard

Optional Element Summary

javax.persistence.Column[]	columns
Class	targetElement Represent the key class in a Map Only useful if the collection does not use generics

columns

public abstract javax.persistence.Column[] columns

Default:

{}

targetElement

public abstract Class targetElement

Represent the key class in a Map Only useful if the collection does not use generics

Default:

void.class