问题描述
当我尝试从内部有@ElementCollection的表中删除条目时,我收到了H2-Database的以下异常。使用SQL Server,一切正常。
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<>();
....
删除语句:
componentRepository.deleteById(componentId);
例外:
org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; constraint ["FKTCOK4MNSV7BPTFXPGQWRDFKAR: TEST.PARTS FOREIGN KEY(COMPONENT_ID) REFERENCES TEST.COMPONENT(ID)
解决方法
这是一个普遍的休眠问题https://hibernate.atlassian.net/browse/HHH-5529。
为解决这个问题,在ElementCollection中添加了以下注释。
@OnDelete(action = OnDeleteAction.CASCADE)
@JoinColumn(name = "component_id")