Question

我有一个实体，我想跟踪所有更改，因此我创建了新实体进行审核。以下是我的主要实体：

@Data
@NoArgsConstructor
@AllArgsConstructor
@Entity
@EntityListeners(AuditingEntityListener.class)
@Table(name = "primary")
public class PrimaryEntity {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "primary_id")
    private Long id;

    private String name;

    @LazyCollection(LazyCollectionOption.FALSE)
    @ElementCollection
    @CollectionTable(
            name = "primary_attachments",
            joinColumns = @JoinColumn(name = "primary_id")
    )
    private List<String> attachments;

    @CreatedDate
    @Temporal(TemporalType.DATE)
    private Date createDate;

    @LastModifiedDate
    @Temporal(TemporalType.DATE)
    private Date lastModifiedDate;
}

以下是我的审计实体：

@Data
@NoArgsConstructor
@AllArgsConstructor
@Entity
@EntityListeners(AuditingEntityListener.class)
@Table(name = "primary_audit")
public class PrimaryEntityAudit {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "audit_id")
    private Long id;

    @NotNull
    @Column(name = "primary_entity_id")
    private Long primaryId;

    private String name;

    @LazyCollection(LazyCollectionOption.FALSE)
    @ElementCollection
    @CollectionTable(
            name = "primary_attachments_audit",
            joinColumns = @JoinColumn(name = "primary_entity_id")
    )
    private List<String> attachments = new ArrayList<>();

    @CreatedDate
    @Temporal(TemporalType.DATE)
    private Date createDate;

    public PrimaryEntityAudit(PrimaryEntity primaryEntity) {
        this.primaryId = primaryEntity.getId();
        this.attachments.addAll(primaryEntity.getAttachments());
        this.createDate = new Date();
    }
}

在更新主要实体之前，我创建新的PrimaryEntityAudit并保存此对象，然后更新主要实体。并且操作成功并保存对象PrimaryEntityAudit，但不保存来自PrimaryEntityAudit的附件。

我也在ProjectEntityAudit的构造函数中尝试了setAttachments，但后来我得到了一个例外：HibernateExcpetion：找到了对集合的共享引用。

如何映射审核集合以保存旧的PrimaryEntity附件状态？

Answer 1

您应该查看以下hibernate模块Envers

它提供版本控制和审核功能

最好不要重新发明轮子，除非你有技术限制阻止你使用某些框架或其他框架。

Hibernate - 实体审核

1 个答案: