[ JPA ] CASCADE는 어디에 사용할까 (persist 한 번만 쓰고 싶을 때)
2022-01-22 11:35:35
import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; import javax.persistence.OneToMany; import java.util.ArrayList; import java.util.List; @Entity public class Parent { @Id @GeneratedValue private Long id; private String name; @OneToMany(mappedBy = "parent") private List childList = new ArrayList(); public void addChild(Child child) { childList...