`Hello. I want to save the data I took from the Account Code Template table to the Account Code table. The data in these tables has a parent-child relationship (child can also be in the parent. I will add an example visual for your understanding). How can I follow a method to save the data I receive from the Account Code Template to the Account Code table? I share my entity classes.

public class HesapKoduTemplate extends BaseEntity{

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

@JoinColumn(
        name = "PARENT_HESAP_KODU_TEMPLATE_ID",
        referencedColumnName = "ID"
)
@ManyToOne(fetch = FetchType.LAZY)
private HesapKoduTemplate parent;

@OneToMany(mappedBy = "parent", cascade = CascadeType.ALL, orphanRemoval = true,fetch = FetchType.LAZY)
private List<HesapKoduTemplate> children = new ArrayList<>();

private BirimType birimType;
private String hesapAdi;
private String hesapKodu;
private Long ownerBirimId;

}

public class HesapKodu extends BaseEntity {

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


@JoinColumn(
        name = "PARENT_HESAP_KODU_ID",
        referencedColumnName = "ID"
)
@ManyToOne(fetch = FetchType.LAZY)
private HesapKodu parent;

@OneToMany(mappedBy = "parent", cascade = CascadeType.ALL, orphanRemoval = true,fetch = FetchType.LAZY)
private List<HesapKodu> children = new ArrayList<>();

private String hesapAdi;
private String hesapKodu; //Hesap Kodu + Ekonomik Kod , Path
private Long ownerBirimId;

@Column(columnDefinition = "BOOLEAN DEFAULT true")
private Boolean active;

@Column(columnDefinition = "BOOLEAN DEFAULT false")
private Boolean genelPlan;

}