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me.namila.RestSpringTest.Model.Publisher.java

@Data
@AllArgsConstructor
@NoArgsConstructor
@Entity
@Table(name = "publisher")
public class Publisher implements Serializable
{
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private int id;

    @Column(name = "name")
    @NotNull
    private String name;

    @Column(name = "address")
    @NotNull
    private String address;

    @OneToMany(mappedBy = "publisher", cascade = CascadeType.ALL)
    //@JsonManagedReference("publisher")
    @JsonIgnore
    private List<Book> bookList= new ArrayList<>();

    public void addBook(Book book) {
        this.bookList.add(book);
    }
}