From the Hibernate Documentation
2.2.5.3.3. Collection of basic types or embeddable objects
In some simple situation, do don't need to associate two entities but simply create a collection of basic types or embeddable objects. Use the @ElementCollection in this case.
@Entity
public class User {
[...]
public
String getLastname() { ...}
@ElementCollection
@CollectionTable(name="Nicknames", joinColumns=@JoinColumn(name="user_id"))
@Column(name="nickname")
public Set<String> getNicknames() { ... }
}
Mark
