Feat#12 채팅방 도메인 구현

src/main/java/com/leets/team2/xclone/domain/chattingRoom/controller/ChattingRoomController.java

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+package com.leets.team2.xclone.domain.chattingRoom.controller;
+
+public class ChattingRoomController {
+}

src/main/java/com/leets/team2/xclone/domain/chattingRoom/dto/ChattingRoomDTO.java

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+package com.leets.team2.xclone.domain.chattingRoom.dto;
+
+import jakarta.validation.constraints.NotNull;
+import lombok.Builder;
+
+public class ChattingRoomDTO {
+
+    @Builder
+    public record Save(
+            @NotNull(message = "chatMemberTag는 필수 값입니다.")
+            String chatMemberTag
+    ){}
+
+    @Builder
+    public record Response(
+            Long id,
+            String participantNickname,
+            String participantTag
+    ){}
+}

src/main/java/com/leets/team2/xclone/domain/chattingRoom/entity/ChattingRoom.java

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+package com.leets.team2.xclone.domain.chattingRoom.entity;
+
+import com.leets.team2.xclone.common.entity.AbstractEntity;
+import com.leets.team2.xclone.domain.member.entities.Member;
+import jakarta.persistence.*;
+
+public class ChattingRoom extends AbstractEntity {
+    @ManyToOne
+    @JoinColumn(name = "member1_id")
+    private Member member1;
+
+
+    @ManyToOne
+    @JoinColumn(name = "member2_id")
+    private Member member2;
+}

src/main/java/com/leets/team2/xclone/domain/chattingRoom/repository/ChattingRoomRepository.java

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+package com.leets.team2.xclone.domain.chattingRoom.repository;
+
+import com.leets.team2.xclone.domain.member.entities.Member;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface ChattingRoomRepository extends JpaRepository<Member, Long> {
+}

src/main/java/com/leets/team2/xclone/domain/chattingRoom/service/ChattingRoomService.java

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+package com.leets.team2.xclone.domain.chattingRoom.service;
+
+import com.leets.team2.xclone.domain.chattingRoom.repository.ChattingRoomRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class ChattingRoomService {
+    private final ChattingRoomRepository chattingRoomRepository;
+}