java - Hibernate ORA-02292 : integrity constraint (ROOT. SYS_C007062) 违反 - 找到子记录

Question

我以下有 hibernate 实体:

@Entity
@Table(name = "News")
public final class News implements Serializable, IEntity {

private static final long serialVersionUID = 3773281197317274020L;

@Id
@SequenceGenerator(name = "NEWS_SEQ_GEN", sequenceName = "NEWS_SEQ")
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "NEWS_SEQ_GEN")
@Column(name = "NEWS_ID", precision = 0)
private Long newsId; // Primary key

@Column(name = "TITLE")
private String title;

@Column(name = "SHORT_TEXT")
private String shortText;

@Column(name = "FULL_TEXT")
private String fullText;

@Temporal(TemporalType.DATE)
@Column(name = "CREATION_DATE")
private Date creationDate;

@Temporal(TemporalType.DATE)
@Column(name = "MODIFICATION_DATE")
private Date modificationDate;

@OneToMany(cascade = CascadeType.REMOVE, orphanRemoval = true)
@JoinColumn(name = "NEWS_ID", updatable = false, referencedColumnName = "NEWS_ID")
@OrderBy("creationDate ASC")
private List<Comment> commentsList;

@ManyToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
@JoinTable(name = "NEWS_TAG", joinColumns = { @JoinColumn(name = "NEWS_ID") }, inverseJoinColumns = { @JoinColumn(name = "TAG_ID") })
private Set<Tag> tagSet;

@OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER)
@JoinTable(name = "NEWS_AUTHOR", joinColumns = { @JoinColumn(name = "NEWS_ID") }, inverseJoinColumns = { @JoinColumn(name = "AUTHOR_ID") })
private Set<Author> author;

第二个:

@SequenceGenerator(name = "COMMENTS_SEQ", sequenceName = "COMMENTS_SEQ")
@Entity
@Table(name = "Comments")
public class Comment implements Serializable, IEntity {

private static final long serialVersionUID = 3431305873409011465L;

@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "COMMENTS_SEQ")
@Column(name = "COMMENT_ID", precision = 0)
private Long commentId; // Primary key

@Column(name = "NEWS_ID")
private Long newsId;

@NotEmpty
@NotNull
@Column(name = "COMMENT_TEXT")
private String commentText;

@Temporal(TemporalType.DATE)
@Column(name = "CREATION_DATE")
private Date creationDate;

当我尝试删除实体新闻时，出现异常 ORA-02292:违反完整性约束 (ROOT.SYS_C007062) - 找到子记录。因此，如果我删除属性“updatable = false”，它会尝试将可空字段设置到属性 Comment 中。我的错误是什么？请帮忙。谢谢。

Answer 1

因为你的新闻记录和评论是一对一或者一对多的关系。您很可能在定义表时没有指定 CACASDE ON DELETE 子句。为了删除实体新闻，您必须确保其所有相关评论记录都已删除或正在引用另一个新闻记录。基本上是 ORA 02292 异常的定义。