백엔드 모각코 모집해요!

memberUpdateDto가 필요한 이유

답변 감사합니다.저장과 수정에 사용되는 필드가 몇개정도 다를때 분리하는게 좋을까요..?한두개만 달라도 분리해야하는건가요..?

merge

헉 이 블로그글 엄청 유익하군요 감사합니다

값 타입 컬렉션의 제약사항

package jpaStudy.ex.entity; import lombok.*; import javax.persistence.*; import java.util.List; @Entity @Getter @Setter @Builder @NoArgsConstructor @AllArgsConstructor @NamedQuery( name = "Member.findByUsername", query = "select m from Member m where m.name = :name" ) public class Member { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "MEMBER_ID") private Long id; @Column private String name; private Integer age; @ElementCollection @CollectionTable(name = "Address", joinColumns = @JoinColumn(name = "MEMBER_ID")) private List addressList; @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "team_id") private Team team; @ManyToOne @JoinColumn(name = "group1_id") private Group1 group1; @Embedded private Address myAddress; } package jpaStudy.ex.entity; import lombok.AllArgsConstructor; import lombok.Getter; import lombok.NoArgsConstructor; import javax.persistence.Embeddable; @Embeddable @AllArgsConstructor @NoArgsConstructor @Getter public class Address { private String zipCode; private String code; }

임베디드 컬렉션 값 조회 jpql시 오류

package jpaStudy.ex.entity; import lombok.AllArgsConstructor; import lombok.Getter; import lombok.NoArgsConstructor; import javax.persistence.Embeddable; @Embeddable @AllArgsConstructor @NoArgsConstructor @Getter public class Address { private String zipCode; private String code; }package jpaStudy.ex.entity; import lombok.*; import javax.persistence.*; import java.util.List; @Entity @Getter @Setter @Builder @NoArgsConstructor @AllArgsConstructor @NamedQuery( name = "Member.findByUsername", query = "select m from Member m where m.name = :name" ) public class Member { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "MEMBER_ID") private Long id; @Column private String name; private Integer age; @ElementCollection @CollectionTable(name = "Address", joinColumns = @JoinColumn(name = "MEMBER_ID")) private List addressList; @ManyToOne(fetch = FetchType.LAZY) @JoinColumn(name = "team_id") private Team team; @ManyToOne @JoinColumn(name = "group1_id") private Group1 group1; @Embedded private Address myAddress; }