@Entity public class Yard { @Id private int yardNo; @OneToOne(mappedBy="backYard") private House aHouse; } @Entity public class House { @Id private int houseNo; @OneToOne private Yard backYard; }
public class Yard {
@Id
private int yardNo;
@OneToOne(mappedBy="backYard")
private House aHouse;
}
@Entity
public class House {
private int houseNo;
@OneToOne
private Yard backYard;
Java Persistence API
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