feat: Collectors.toMap 사용 시 순서 보장을 위한 LinkedHashMap 적용 (#43)

8-Sprinters · Feb 4, 2024 · 7426084 · 7426084
1 parent e198c6e
commit 7426084
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/src/main/java/com/listywave/list/application/service/CommentService.java b/src/main/java/com/listywave/list/application/service/CommentService.java
@@ -15,6 +15,7 @@
 import com.listywave.user.application.domain.User;
 import com.listywave.user.repository.UserRepository;
 import jakarta.transaction.Transactional;
+import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import lombok.RequiredArgsConstructor;
@@ -50,9 +51,11 @@ public CommentFindResponse getComments(Long listId, int size, Long cursorId) {
         Map<Comment, List<Reply>> result = comments.stream()
                 .collect(toMap(
                         identity(),
-                        replyRepository::getAllByComment
+                        replyRepository::getAllByComment,
+                        (exists, newValue) -> exists,
+                        LinkedHashMap::new
                 ));
-
+        
         Long cursorIdOfResult = comments.get(comments.size() - 1).getId();
         boolean hasNext = comments.size() >= size;