Java 从引用其他表的表中删除一行,该表包含由JPA注释实体类创建的表

Java 从引用其他表的表中删除一行,该表包含由JPA注释实体类创建的表,java,jpa,entity,Java,Jpa,Entity,我从JPA注释实体类生成了数据库表,如下所示: @Entity @Table (name="chauffeur") public class Chauffeur{ @Id @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "MYNOTIFSEQ") //identificateur de de la séquence @SequenceGenerator(name = "MYNOTIF

我从JPA注释实体类生成了数据库表,如下所示:

@Entity
@Table (name="chauffeur")
public class Chauffeur{    

    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "MYNOTIFSEQ") //identificateur de de la séquence
    @SequenceGenerator(name = "MYNOTIFSEQ", sequenceName = "MY_SEQ") //nom de la séquence dans la base
    private Long id; // Identifiant formation (Clé primaire)
    private String nom;
    private String prenom;
    private String adresse;
    private String telephone;
    private String login;
    private String motdepasse;
    private String position;
    private String disponible;

    @OneToOne(mappedBy = "c")
    private Taxi t;

    @OneToOne(mappedBy = "chau")
    private  Favoris favoris;
这门课:

@Entity
@Table(name = "favoris")
public class Favoris {
    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "MYNOTIFSEQ")
    @SequenceGenerator(name = "MYNOTIFSEQ", sequenceName = "MY_SEQ")
    private Long id; // Identifiant formation (Clé primaire)

    @OneToOne(cascade={CascadeType.PERSIST, CascadeType.REMOVE},orphanRemoval=true)
    private Taxi taxi;

    @OneToOne(cascade={CascadeType.PERSIST, CascadeType.REMOVE},orphanRemoval=true)
    private Chauffeur chau;
我的问题是我想从Chauffer表中删除一行,但该表引用了Favoris表 这就是为什么我有这个错误:

java.sql.SQLIntegrityConstraintViolationException: ORA-02292: integrity constraint (MYBASE.FK_SUIDVMBNQQO4MUFI27VCLVPMV) violated - child record found
这是我使用的查询:

delete from Chauffeur where id ='1'

如何解决此问题并感谢

首先从Favoris中删除引用行?@Kilazur,您的意思是我应该先在Favoris中应用删除查询,然后再在Chaffer表中应用删除查询??如果您的删除操作因Favoris而无效,则表示您没有对其进行级联,在这种情况下,是的,你应该先删除引用的Favoris行。Kilazur,我应该像这样使用@CascadeOnDelete注释吗:很遗憾,我对你正在使用的ORM不太了解,所以我不能说出注释,但我想这是个主意。