@embededId containing a foreign key of an entity with inheritance giving an error on bootstraping
Description
Used this as my starting point: https://vladmihalcea.com/the-best-way-to-map-a-many-to-many-association-with-extra-columns-when-using-jpa-and-hibernate/
I have an entity named Attendance that has an and emebedid AttendacneId that has two columns lectureId (string) and studenId(UUID). The attendance entity also has other properties as well containing a ManyToOne relationship with student and lecture enity using the @MapsId on them. The student extends user entity where the id resides. now when I try to save anything I get this error.
1
2
3
4
5
6
7
8
9
10
java.util.NoSuchElementException
at java.util.ArrayList$Itr.next(ArrayList.java:860)
at org.hibernate.cfg.annotations.TableBinder.linkJoinColumnWithValueOverridingNameIfImplicit(TableBinder.java:724)
at org.hibernate.cfg.PkDrivenByDefaultMapsIdSecondPass.doSecondPass(PkDrivenByDefaultMapsIdSecondPass.java:37)
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1684)
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processSecondPasses(InFlightMetadataCollectorImpl.java:1641)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:286)
at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.build(MetadataBuildingProcess.java:83)
at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:473)
at org.hibernate.boot.internal.MetadataBuilderImpl.build(MetadataBuilderImpl.java:84)My AttendanceId class
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
@Embeddable
public class AttendanceId implements Serializable {
@Column(name = "lecture_fid")
@Getter
@Setter
private String lectureId;
@Column(name = "student_fid", columnDefinition = "uuid")
@Getter
@Setter
private UUID studentId;
public AttendanceId() {}
}My Attendance class
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
@Entity
@Table(name = "attendance")
public class Attendance implements Serializable {
@EmbeddedId
@Getter
@Setter(AccessLevel.PRIVATE)
private AttendanceId id;
// other fields
@ManyToOne(fetch = FetchType.LAZY)
@MapsId("lectureId")
private Lecture lecture;
@ManyToOne(fetch = FetchType.LAZY)
@MapsId("studentId")
private Student student;
}My Student Class
1
2
3
4
5
6
7
8
9
10
@Entity
@PrimaryKeyJoinColumn(name = "id")
public class Student extends User implements Serializable,
Comparable<Student> {
// other fields
@OneToMany(mappedBy = "student", fetch = FetchType.LAZY)
@Getter
private List<Attendance> attendances = new ArrayList<>();
}My User class
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
@Entity
@Table(name = "users", uniqueConstraints = {
@UniqueConstraint(columnNames = {"email", "username"})})
@Inheritance(strategy = InheritanceType.JOINED)
public abstract class User implements Serializable {
@Id
@GeneratedValue(generator = "uuid")
@GenericGenerator(name = "uuid", strategy = "uuid")
@Column(columnDefinition = "UUID")
@Getter(AccessLevel.PUBLIC)
@Setter(AccessLevel.PUBLIC)
private UUID id;
// other fields.
}My Lecture Class
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
@NamedNativeQueries(
@NamedNativeQuery(name = "getLectureId", query = "select
get_lecture_id()")
)
@Entity
@Table(name = "lecture")
public class Lecture implements Serializable {
@Id
@Column(name = "id")
@GenericGenerator(name = "lectureIdGenerator",
strategy = "entities.LectureIdGenerator")
@GeneratedValue(generator = "lectureIdGenerator")
@Getter
@Setter
private String id;
@OneToMany(mappedBy = "lecture", fetch = FetchType.LAZY)
@Getter
private List<Attendance> attendances = new ArrayList<>();
// other fields
}Test case: https://github.com/sukhvir41/hibernate-test-case-templates
Forum link: https://discourse.hibernate.org/t/embededid-containing-a-foreign-key-of-an-entity-with-inheritance/2334
Environment
java 1.8, postgresql and H2(test case)
Status
Assignee
Reporter
Fix versions
backPortable
Suitable for new contributors
Requires Release Note
Pull Request
backportDecision
Components
Affects versions
Priority
Major