jpa/boot-read-replica-postgresql/src/main/java/com/example/demo/readreplica/domain/CommentDTO.java (1)

7-9: Add null-safety checks for robust conversion.

If there's a possibility that commentDTO is null or contains a null comment, consider adding appropriate null checks (e.g., Objects.requireNonNull) to prevent potential NullPointerExceptions or inadvertently saving null fields to the database.

jpa/boot-read-replica-postgresql/src/main/java/com/example/demo/readreplica/service/ArticleService.java (1)

12-12: Transactional scope clarity.

Marking the entire class with @Transactional(readOnly = true) is generally fine, but be sure that any override, such as the @Transactional on the saveArticle method, is well-understood to handle write operations properly. This ensures no confusion regarding transactional boundaries, especially in a service class that mixes read and write functionality.

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if (commentDTOs != null) {
    commentDTOs.forEach(...);
}

jpa/boot-read-replica-postgresql/src/main/java/com/example/demo/readreplica/controller/ArticleController.java (1)

38-49: Consider returning HTTP 204 No Content instead of 202 Accepted.

Currently, the method returns a 202 (Accepted) when an article is successfully deleted. While this is valid, a 204 (No Content) response is often used to indicate a successful deletion operation with no further content. You might consider using 204 to more precisely align with typical REST conventions. Alternatively, continuing to use 202 is acceptable if there is an expectation of asynchronous completion.

jpa/boot-read-replica-postgresql/src/test/java/com/example/demo/readreplica/controller/ArticleControllerIntTest.java (1)

57-103: Comprehensive multi-step creation and deletion test.

1. The saveArticle test method effectively checks the created resource’s location and follow-up GET request to validate the persisted article.
2. The final DELETE step ensures proper coverage of the new delete functionality.
3. Consider adding an additional verification step after deletion (e.g., an assertion that a subsequent GET now returns 404) to confirm that the resource was indeed removed.

jpa/boot-read-replica-postgresql/src/main/java/com/example/demo/readreplica/service/ArticleService.java (1)

32-34: Expose consistent naming for find methods.

You have findArticleById (accepting an Integer) and findById (accepting a Long). Aligning parameter types and method names can help reduce confusion and unify the service API.

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jpa/boot-read-replica-postgresql/src/main/java/com/example/demo/readreplica/service/ArticleService.java (1)

36-39: Consider adding error handling for non-existent IDs.

The method should handle cases where the article doesn't exist. Consider either:

1. Returning a boolean to indicate success/failure
2. Throwing a custom exception for non-existent articles

     @Transactional
-    public void deleteById(Long id) {
-        articleRepository.deleteById(id);
+    public boolean deleteById(Long id) {
+        if (articleRepository.existsById(id)) {
+            articleRepository.deleteById(id);
+            return true;
+        }
+        return false;
     }

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#!/bin/bash
# Description: Verify all references pass a Long argument 
rg -A 3 -B 3 'findByArticleId'

#!/bin/bash
# Find Article entity definition
ast-grep --pattern 'class Article {
  $$$
}'

#!/bin/bash
# Find Article entity definition using ripgrep
rg -A 10 "class Article" 

#!/bin/bash
# Search for any remaining Integer id usage in article-related files
rg -l "Integer.*id.*Article" 

# Search for findArticleById method calls
ast-grep --pattern 'findArticleById($expr)'

#!/bin/bash
# Let's try a more comprehensive search for method calls and Integer usage

# Search for findArticleById method calls with context
rg "findArticleById" -A 2 -B 2

# Search for Article-related files that might contain Integer type
fd -e java . | xargs rg "Integer.*Article|Article.*Integer" -l

# Search for repository method signature
ast-grep --pattern 'findByArticleId($expr)'

#!/bin/bash
# Let's check the Article entity and repository for ID type
rg "class Article" -A 5 -B 5

# Check the repository method signature
rg "findByArticleId" -A 2 -B 2

# Look for any Integer type in Article-related files
rg "Integer" -A 2 -B 2 jpa/boot-read-replica-postgresql/src/main/java/com/example/demo/readreplica/

jpa/boot-read-replica-postgresql/src/test/java/com/example/demo/readreplica/controller/ArticleControllerIntTest.java (2)

20-21: Consider using @WebMvcTest for faster test execution.

The @SpringBootTest annotation loads the entire application context, which might be unnecessary if you're only testing the web layer. Consider using @WebMvcTest(ArticleController.class) for better test isolation and faster execution, unless you specifically need the full application context.

---

22-22: Add security and concurrent access tests.

Consider enhancing the test suite with:

1. Security tests:

   • Authentication requirements
   • Authorization rules
   • CSRF protection

2. Concurrent access tests:

   • Multiple simultaneous writes
   • Race conditions in update operations

Would you like me to provide example test cases for these scenarios?

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#!/bin/bash
# Search for MockMvcTester implementation
ast-grep --pattern 'class MockMvcTester {
  $$$
}'

# Search for MockMvcTester usage in other test files
rg -l "MockMvcTester"

#!/bin/bash
# Search for MockMvcTester implementation in AbstractIntegrationTest files
rg -A 20 "class MockMvcTester" scheduler/boot-scheduler-quartz/src/test/java/com/scheduler/quartz/common/AbstractIntegrationTest.java boot-ultimate-redis/src/test/java/com/example/ultimateredis/common/AbstractIntegrationTest.java jpa/boot-data-customsequence/src/test/java/com/example/custom/sequence/common/AbstractIntegrationTest.java batch-boot-jpa-sample/src/test/java/com/example/bootbatchjpa/common/AbstractIntegrationTest.java

# Search for MockMvc usage within MockMvcTester
rg "MockMvc" scheduler/boot-scheduler-quartz/src/test/java/com/scheduler/quartz/common/AbstractIntegrationTest.java boot-ultimate-redis/src/test/java/com/example/ultimateredis/common/AbstractIntegrationTest.java jpa/boot-data-customsequence/src/test/java/com/example/custom/sequence/common/AbstractIntegrationTest.java batch-boot-jpa-sample/src/test/java/com/example/bootbatchjpa/common/AbstractIntegrationTest.java

#!/bin/bash
# Check the import statement in the ArticleControllerIntTest
rg -A 5 "import.*MockMvcTester" jpa/boot-read-replica-postgresql/src/test/java/com/example/demo/readreplica/controller/ArticleControllerIntTest.java

# Check if there's a custom implementation in the project
rg -g "*.java" -l "class MockMvcTester"