인프런 커뮤니티 질문&답변

lombok 플러긴에서 인스톨했습니다!

package jpabook.jpashop.domain;

import lombok.Getter;
import lombok.Setter;


import javax.persistence.*;

import java.util.ArrayList;
import java.util.List;

@Entity
@Getter @Setter
public class Member {
    @Id @GeneratedValue
    @Column(name="member_id")
    private Long id;
    private String username;

    @Embedded
    private Address address;

    @OneToMany(mappedBy = "member")
    private List<Order> orders = new ArrayList<>();





}





package jpabook.jpashop.service;

import jpabook.jpashop.domain.Member;
import jpabook.jpashop.repository.MemberRepository;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;


import java.util.List;

@Service
@Transactional(readOnly= true)
@RequiredArgsConstructor
public class MemberService {

    private final MemberRepository memberRepository;

    /* 회원가입 */
    @Transactional
    public Long join(Member member) {
        validateDuplicateMember(member);//중복 회원 검증
        memberRepository.save(member);
        return member.getId();
    }
    private void validateDuplicateMember(Member member) {
        //Exception
        List<Member> findMembers = memberRepository.findByName(member.getName());
        if(!findMembers.isEmpty()) {
            throw new IllegalAccessException("이미 존재하는 회원입니다.");
        }
    }
    /*
    전체회원조회
     */
    public List<Member> findMembers() {
        return memberRepository.findAll();
    }
    public Member findOne(Long memberId) {
        return memberRepository.findOne(memberId);
    }
}