如何在hibernate中获取在集合中添加或删除的元素

@Entity
public class ParentEntity {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @OneToMany(mappedBy = "parent", cascade = CascadeType.ALL)
    private Set<ChildEntity> children = new HashSet<>();

    // Getter and setter methods

    public void setChildren(Set<ChildEntity> children) {
        // 获取旧值
        Set<ChildEntity> oldChildren = new HashSet<>(this.children);

        // 设置新值
        this.children = children;

        // 监听集合变化
        beforeInitialize();
        afterInitialize();

        // 比较旧值和新值，获取添加或删除的元素
        Set<ChildEntity> addedChildren = new HashSet<>(children);
        addedChildren.removeAll(oldChildren);

        Set<ChildEntity> removedChildren = new HashSet<>(oldChildren);
        removedChildren.removeAll(children);

        System.out.println("添加的元素：" + addedChildren);
        System.out.println("删除的元素：" + removedChildren);
    }
}

@Entity
public class ChildEntity {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @ManyToOne
    private ParentEntity parent;

    // Getter and setter methods
}