Is it possible to use embedded attributes, which map to Objects that use for themselves embedded attributes?

e.g.

public class Konto implements Serializable {

 @Embedded
 @AttributeOverride(name = "betrag", column = @Column(name = "saldo"))
 private Saldo saldo;
}

@Embeddable(access = AccessType.FIELD)
public class Saldo implements Serializable {

 @Embedded
 @AttributeOverride(name = "value", column = @Column)
 private Betrag _value;
}

@Embeddable(access = AccessType.FIELD)
public class Betrag implements Serializable {

 private long value;
}

My problem is the second @AttributeOverride definition. Because i have already mapped the attribute to a column in the first annotation, to what should i map the second one?

Please just dont ask me, why i do not simply use the primitive long value in the class "Konto". My tutors want me to wrap all primitives in business objects, which might have aditional functionality ;)