package example;
import jakarta.persistence.*;
@Entity @Table(name="catalog_line")
public class CatalogLine {
    @Id private Long id;
    @ManyToOne(fetch=FetchType.LAZY,optional=false) @JoinColumn(name="item_id",nullable=false)
    private CatalogItem item;
    @Column(nullable=false,length=80) private String sku;
    protected CatalogLine() {}
    public String getSku(){return sku;}
}