When i try to remove a entry from a table which has a @ElementCollection inside, i get following exception with the H2-Database. With a SQL-Server everything works fine.
application.yml
spring:
datasource:
driver-class-name: org.h2.Driver
url: jdbc:h2:mem:h2_test;MODE=MSSQLServer;INIT=CREATE SCHEMA IF NOT EXISTS test;DB_CLOSE_DELAY=-1;DB_CLOSE_ON_EXIT=FALSE
username: sa
password:
liquibase:
change-log: classpath:db/changelog.xml
default-schema: test
liquibase-schema: test
enabled: false
jpa:
database-platform: org.hibernate.dialect.H2Dialect
hibernate:
ddl-auto: update
Component.class
@Data
@EqualsAndHashCode(callSuper = true)
@Entity
@Table
@NoArgsConstructor
public class Component extends Identifiable {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "component_sequence")
@SequenceGenerator(name = "component_sequence", sequenceName = "component_sequence", allocationSize = 10)
private Long id;
@Column
private String componentId;
@ElementCollection
@CollectionTable(name = "parts", joinColumns = @JoinColumn(name = "component_id"))
@Column(name = "part")
private List<Integer> parts = new ArrayList<>();
....
Delete statement:
componentRepository.deleteById(componentId);
Exception:
org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; constraint ["FKTCOK4MNSV7BPTFXPGQWRDFKAR: TEST.PARTS FOREIGN KEY(COMPONENT_ID) REFERENCES TEST.COMPONENT(ID)
It is a general Hibernate Problem https://hibernate.atlassian.net/browse/HHH-5529.
To solve this, I have added the following annotations to the ElementCollection.
@OnDelete(action = OnDeleteAction.CASCADE)
@JoinColumn(name = "component_id")