Java 如何在spring jpa中按顺序自动生成id

我需要按如下顺序进行一对多排序:

例如:

数据模型:

enter image description here

Java代码/映射:

类别类别

package br.com.bank.adapter.repository.entity;

import lombok.Getter;
import lombok.Setter;
import javax.persistence.*;
import java.time.LocalDateTime;
import java.util.HashSet;
import java.util.Set;

@Entity
@Getter
@Setter
@Table(name = "category")
public class CategoryEntity {

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;

@Column(name = "name", nullable = false)
private String name;

@Column(name = "update_at")
private LocalDateTime update;

@OneToMany(mappedBy = "category", orphanRemoval = true, cascade = CascadeType.ALL)
private Set<SubCategoryEntity> subCategoryEntity = new HashSet<>();

}

Sub类别类别

package br.com.bank.adapter.repository.entity;

import lombok.Getter;
import lombok.Setter;

import javax.persistence.*;
import java.time.LocalDateTime;

@Entity
@Getter
@Setter
@Table(name = "sub_category")
public class SubCategoryEntity {

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;

@Column(name = "name", nullable = false)
private String name;

@Column(name = "update_at")
private LocalDateTime update;

@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "category_id", nullable = false)
private CategoryEntity category;

}

使用上面的代码，我得到以下结果: