非 PK 列来自嵌入式实体的 JPA/Hibernate OneToMany 关系

Question

JPA Model:

@Getter
@Setter
@Entity
@AllArgsConstructor
@NoArgsConstructor
@Table(name = "BASE_RECORD")
public class BaseRecord {

    @Id
    @Column(name = "DB_ID")
    public Long id;

    @Embedded
    public DeclarantRecord declarant;
}

@Getter
@Setter
@Embeddable
@AllArgsConstructor
@NoArgsConstructor
public class DeclarantRecord {

    @Column(name = "DECLARANT_ID")
    public String declarantId;

    @Column(name = "DECLARANT_IDE")
    public String identificationNumber;

    @Column(name = "DECLARANT_NAME")
    public String name;

    @OneToMany(mappedBy = "baseRecord", fetch = FetchType.EAGER)
    public List<DeclarantAddress> addresses;
}

---

@Getter
@Setter
@Entity
@NoArgsConstructor
@AllArgsConstructor
@Table(name = "ADDRESS_RECORD")
public class DeclarantAddress {

    @Id
    @Column(name = "DB_ID")
    public Long id;

    @ManyToOne
    @JoinColumn(name = "PERS_ID", referencedColumnName = "DECLARANT_ID")
    public BaseRecord baseRecord;
}

When fetching a BaseRecord from DB by using a Spring Boot JPARepository , I receive the following exception:

Caused by: org.hibernate.AnnotationException: referencedColumnNames(DECLARANT_ID) of DeclarantAddress.baseRecord referencing BaseRecord not mapped to a single property

I cannot understand what's wrong and moreover, if I inline the DeclarantRecord in the BaseRecord entity by declaring all the properties in there and moving the exact same relationship declaration in the BaseRecord class, everything works perfectly.

Answer 1

The answer that worked for me:

Move @Column(name = "DECLARANT_ID") public String declarantId; to BaseRecord class.

The rest can stay the same.