Javers - findChanges 不记录/选取嵌套 VO

Question

我有以下代码（java / jpa）：

@NoArgsConstructor
@AllArgsConstructor
@ToString(onlyExplicitlyIncluded = true)
@Builder(toBuilder = true)
@Getter
@Setter
@Entity
public class Foo {
    @ToString.Include
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Integer id;

    @ToString.Include
    @Valid
    @NotNull
    @AttributeOverride(
        name = "origin.elementType",
        column = @Column(name = "inclusion_origin_element_type", nullable = false)
    )
    @AttributeOverride(name = "origin.values", column = @Column(name = "inclusion_origin_value", length = 64))
    @AttributeOverride(name = "destination.elementType", column = @Column(name = "inclusion_destination_element_type"))
    @AttributeOverride(name = "destination.values", column = @Column(name = "inclusion_destination_value", length = 64))
    @AttributeOverride(name = "bothDirections", column = @Column(name = "inclusion_both_direction", nullable = false))
    @Embedded
    private CompositionDetails inclusions;

    @ToString.Include
    @Valid
    @Nullable
    @AttributeOverride(name = "origin.elementType", column = @Column(name = "exclusion_origin_element_type"))
    @AttributeOverride(name = "origin.values", column = @Column(name = "exclusion_origin_value", length = 64))
    @AttributeOverride(name = "destination.elementType", column = @Column(name = "exclusion_destination_element_type"))
    @AttributeOverride(name = "destination.values", column = @Column(name = "exclusion_destination_value", length = 64))
    @AttributeOverride(name = "bothDirections", column = @Column(name = "exclusion_both_direction"))
    @Embedded
    private CompositionDetails exclusions;

    //......
}

和

@ToString
@NoArgsConstructor
@AllArgsConstructor
@Builder
@Getter
@Setter
@Embeddable
public class CompositionDetails {

    @Valid
    @NotNull
    @Embedded
    private CompositionElement origin;

    @Valid
    @Nullable
    @Embedded
    private CompositionElement destination;

    @Builder.Default
    @Nullable
    private Boolean bothDirections = Boolean.FALSE;
}

和：

@ToString
@NoArgsConstructor
@AllArgsConstructor
@Builder
@Getter
@Setter
@Embeddable
public class CompositionElement {

    @NotNull
    @Column(nullable = false, length = 16)
    @Enumerated(EnumType.STRING)
    private ElementType elementType;

    @Builder.Default
    @NotEmpty
    @ElementCollection(fetch = FetchType.EAGER)
    private List<String> values = new ArrayList<>();
}

如果我保留原始

Foo

而不排除任何内容，然后使用某些排除值更新该实体，则会发生以下情况：

• javers.findChanges(QueryBuilder.byInstanceId(id, clazz).withChildValueObjects(true).build())

  - 不选择更新，仅返回一个“更改” - 原始的“创建”

• javers.findSnapshots(QueryBuilder.byInstanceId(id, clazz).withChildValueObjects(true).build())

  - 显示两个版本，在属性更改中我可以看到“排除”已更新

• javers.findShadows(QueryBuilder.byInstanceId(id, clazz).withChildValueObjects(true).build())

  - 显示两个版本，具有预期的“基”值（不排除）和具有排除的新版本

在日志中，进行更新后，我看到以下内容：

org.javers.core.Javers                   : Commit(id:11.00, snapshots:3, author:unknown, changes -), done in 5 ms (diff:4 ms, persist:1 ms)

这表明没有发生任何变化🤔 当然，原始实体状态和更新实体状态之间的哈希值是不同的。

我很困惑 - 我在这里做错了什么？

---

记录一下：

• JDK - 21（OpenJDK / Eclipse Temurin）
• spring-boot-starter-parent 3.3.4
• javers-spring-boot-starter-sql - 7.6.2

Answer 1

不知道为什么......但是在我的

org.javers.core.metamodel.annotation.Value

上使用

CompositionDetails

注释以及来自lombok的

@EqualsAndHashCode

和

CompositionDetails

上的明确

CompositionElement

确实有效。