polish : Hibernate2nd level cache #1599
Conversation
WalkthroughThe pull request involves refactoring the Hibernate Second Level Cache sample project. Key changes include renaming the main application class from Changes
Suggested labels
Poem
📜 Recent review detailsConfiguration used: CodeRabbit UI 📒 Files selected for processing (5)
💤 Files with no reviewable changes (1)
🔇 Additional comments (10)jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/web/controllers/OrderController.java (1)
Appending jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/web/controllers/OrderItemController.java (1)
This update changes the path in the jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/web/controllers/CustomerController.java (1)
Using jpa/boot-hibernate2ndlevelcache-sample/src/test/java/com/example/hibernatecache/web/controllers/CustomerControllerIT.java (7)
The placement of
The validation correctly checks for:
The validation appropriately checks for:
The validation correctly verifies:
The validation appropriately checks:
The validation correctly verifies:
The comment on line 221 helpfully documents the cascade delete behavior.
The test expects 5 select statements for fetching all customers, which seems high for a simple fetch operation. This might indicate N+1 query issues or unnecessary eager loading. Let's analyze the query execution: ✅ Verification successfulLet me generate another script to analyze the entity relationships and fetch operations: Let me check the mapper implementation to understand how the entities are mapped to responses: Based on the gathered information, I can now provide the final response: The 5 select statements are expected due to the entity relationships and caching configuration The high number of select statements is justified because:
The 5 select statements likely correspond to:
🏁 Scripts executedThe following scripts were executed for the analysis: Script: #!/bin/bash
# Description: Analyze the select statements executed during the fetch operation
# Search for relevant entity mappings and repository methods
echo "Searching for entity mappings..."
rg -A 10 "class Customer"
rg -A 10 "class Order"
rg -A 10 "class OrderItem"
echo "Searching for repository methods..."
rg -A 5 "findAll|getAllCustomers" --type java
Length of output: 66918 Script: #!/bin/bash
# Search for entity relationships and fetch operations
# Look for Customer entity relationships
echo "Searching for Customer entity relationships..."
rg -A 5 "@OneToMany|@ManyToOne|@ManyToMany" jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/entities/Customer.java
# Look for Order entity relationships
echo "Searching for Order entity relationships..."
rg -A 5 "@OneToMany|@ManyToOne|@ManyToMany" jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/entities/Order.java
# Look for fetch operations in repository and service
echo "Searching for fetch operations..."
rg -A 5 "findAll|fetch|join" jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/repositories/
rg -A 5 "findAll|fetch|join" jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/services/
Length of output: 6393 Script: #!/bin/bash
# Search for mapper implementations and response classes
# Look for CustomerMapper implementation
echo "Searching for CustomerMapper implementation..."
rg -A 10 "toResponseList|mapToResponse" jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/mapper/CustomerMapper.java
# Look for CustomerResponse class
echo "Searching for CustomerResponse class..."
rg -A 10 "class CustomerResponse" jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/model/response/
# Look for cache configuration
echo "Searching for cache configuration..."
rg -A 5 "hibernate.cache|@Cache" jpa/boot-hibernate2ndlevelcache-sample/src/main/resources/
Length of output: 2198 Thank you for using CodeRabbit. We offer it for free to the OSS community and would appreciate your support in helping us grow. If you find it useful, would you consider giving us a shout-out on your favorite social media? 🪧 TipsChatThere are 3 ways to chat with CodeRabbit:
Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments. CodeRabbit Commands (Invoked using PR comments)
Other keywords and placeholders
CodeRabbit Configuration File (
|
github-actions
bot
added
the
component: hibernate2ndlevelcache-sample
![coderabbitai[bot]](https://avatars.githubusercontent.com/in/347564?s=60&v=4){kind=small}
There was a problem hiding this comment.
Actionable comments posted: 0
🧹 Nitpick comments (1)
jpa/boot-hibernate2ndlevelcache-sample/src/test/java/com/example/hibernatecache/TestHibernate2ndLevelCacheApplication.java (1)
6-6: Consider adding minimal Javadoc for clarity.Although the class name is self-explanatory, adding a brief class-level Javadoc describing its role as a specialized entry point for testing would improve clarity.
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (6)
jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/Hibernate2ndLevelCacheApplication.java(1 hunks)jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/repositories/CustomerRepository.java(1 hunks)jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/repositories/OrderItemRepository.java(1 hunks)jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/repositories/OrderRepository.java(1 hunks)jpa/boot-hibernate2ndlevelcache-sample/src/test/java/com/example/hibernatecache/TestApplication.java(0 hunks)jpa/boot-hibernate2ndlevelcache-sample/src/test/java/com/example/hibernatecache/TestHibernate2ndLevelCacheApplication.java(1 hunks)
💤 Files with no reviewable changes (1)
- jpa/boot-hibernate2ndlevelcache-sample/src/test/java/com/example/hibernatecache/TestApplication.java
🔇 Additional comments (7)
jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/Hibernate2ndLevelCacheApplication.java (2)
10-10: Renaming the class provides clarity and aligns with the module’s purpose.
Renaming from a generic "Application" to a more descriptive "Hibernate2ndLevelCacheApplication" improves discoverability and communicates the intent of this class in relation to Hibernate 2nd level caching.
13-13: Verify all references to the old class name are updated throughout the project.
Ensure no remaining code references or test classes still depend on the old “Application.class” usage.
Here is a quick script to perform the check across the repo:
✅ Verification successful
No references to old "Application.class" found in the project
The search results show that each Spring Boot application in the project uses its own specific class name in SpringApplication.run(). In the file under review, Hibernate2ndLevelCacheApplication.class is correctly used, and there are no lingering references to a generic "Application.class" that would need to be updated.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Verifies no lingering references to the old class name
rg 'Application\.class' -A 5
Length of output: 18284
jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/repositories/OrderItemRepository.java (1)
8-8: Ensure no functionality from HibernateRepository<OrderItem> was in use.
The removal of HibernateRepository<OrderItem> simplifies the inheritance structure. However, please confirm by searching the codebase that no methods or properties unique to HibernateRepository were being used. If any were in use, adapt them to the remaining repository interfaces or other suitable abstractions.
✅ Verification successful
The removal of HibernateRepository<OrderItem> is safe
Based on the examination of the codebase:
- No direct references to
HibernateRepositorywere found in the codebase - The
OrderItemServiceonly uses standard JPA repository methods (findAll,findById,persist,merge,deleteById) which are provided by the remaining interfaces:BaseJpaRepository<OrderItem, Long>PagingAndSortingRepository<OrderItem, Long>
The inheritance structure has been successfully simplified without losing any required functionality.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify that no references to `HibernateRepository<OrderItem>` remain in the codebase.
rg 'HibernateRepository<OrderItem>'
Length of output: 37
Script:
#!/bin/bash
# Let's check for any usage of HibernateRepository in general and methods specific to it
rg -i "HibernateRepository"
# Let's also check the content of the OrderItemRepository to understand its current state
cat jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/repositories/OrderItemRepository.java
# Let's check for any references to OrderItemRepository usage in the codebase
rg "OrderItemRepository"
Length of output: 2016
Script:
#!/bin/bash
# Let's check the BaseJpaRepository to understand what methods are available
rg -A 5 "interface BaseJpaRepository"
# Let's examine the service layer to see what repository methods are actually being used
cat jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/services/OrderItemService.java
Length of output: 3608
jpa/boot-hibernate2ndlevelcache-sample/src/test/java/com/example/hibernatecache/TestHibernate2ndLevelCacheApplication.java (2)
1-1: Package naming looks appropriate.
No issues found regarding the package name.
8-13: Validate references to Hibernate2ndLevelCacheApplication.
The method reference Hibernate2ndLevelCacheApplication::main relies on the main application class being in the same package or imported. Please ensure it is accessible and not inadvertently removed during refactoring.
✅ Verification successful
The reference to Hibernate2ndLevelCacheApplication is valid and accessible
Both the test class TestHibernate2ndLevelCacheApplication and the main application class Hibernate2ndLevelCacheApplication are in the same package com.example.hibernatecache, making the method reference Hibernate2ndLevelCacheApplication::main valid and accessible without requiring an explicit import.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify that the class Hibernate2ndLevelCacheApplication is accessible in the package
rg $'public class Hibernate2ndLevelCacheApplication'
Length of output: 221
Script:
#!/bin/bash
# Check if the test class and main class are in the same package
rg --type java "package.*hibernatecache" jpa/boot-hibernate2ndlevelcache-sample/src/
Length of output: 8607
Script:
#!/bin/bash
# Check for imports in the test class
rg -A 5 "^package.*hibernatecache" jpa/boot-hibernate2ndlevelcache-sample/src/test/java/com/example/hibernatecache/TestHibernate2ndLevelCacheApplication.java
Length of output: 360
jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/repositories/CustomerRepository.java (1)
17-17: Simplify repository design by removing the Hibernate-specific interface
The removal of HibernateRepository<Customer> helps streamline the repository hierarchy. Verify that all references to methods previously provided by HibernateRepository are removed or replaced.
Below is an optional script to confirm that no references to HibernateRepository remain:
✅ Verification successful
No Hibernate-specific interface references found, repository design is clean
After analyzing the codebase, I can confirm that:
- The
CustomerRepositorycorrectly extends onlyBaseJpaRepositoryandPagingAndSortingRepository - There are no remaining references to any
HibernateRepositoryinterface in the entire codebase - The repository follows the standard Spring Data JPA patterns with additional Hibernate-specific features (like caching) being handled through annotations rather than interface inheritance
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Searching the entire codebase for references to HibernateRepository
rg -A 5 $'HibernateRepository'
Length of output: 29
Script:
#!/bin/bash
# Let's check for any references to Hibernate-specific methods or patterns
# First, let's see the content of the CustomerRepository file
cat jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/repositories/CustomerRepository.java
# Also check for any other repository interfaces that might be related
fd -e java "Repository.java" --exec cat {}
Length of output: 31919
jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/repositories/OrderRepository.java (1)
7-7: Confirm there are no remaining references to HibernateRepository.
By removing HibernateRepository, any code that directly depended on its methods may break. Please verify that no dependencies or method calls to HibernateRepository remain in the codebase.
Here’s a suggested verification script:
✅ Verification successful
No references to HibernateRepository found in the codebase
The comprehensive search shows that there are no remaining references to HibernateRepository in the codebase. The repositories are correctly using:
BaseJpaRepositoryfromio.hypersistence.utils.spring.repositoryPagingAndSortingRepositoryfrom Spring Data JPA
The removal of HibernateRepository appears to be complete and safe, with no lingering dependencies that could cause issues.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Search for any instances of 'HibernateRepository' in the codebase.
rg 'HibernateRepository'
Length of output: 24
Script:
#!/bin/bash
# Let's try a more comprehensive search for any potential references or remnants of HibernateRepository
# 1. Search for Hibernate in repository interfaces and classes
rg -i "hibernate.*repository" --type java
# 2. Search for any import statements related to HibernateRepository
rg -i "import.*hibernate.*repository"
# 3. Search for any files with Hibernate in their name
fd -e java ".*[Hh]ibernate.*"
Length of output: 5465
Script:
#!/bin/bash
# Let's check the repository interfaces to see their inheritance hierarchy
# and any potential Hibernate-specific methods
# Check OrderRepository
cat jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/repositories/OrderRepository.java
# Check CustomerRepository
cat jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/repositories/CustomerRepository.java
# Check OrderItemRepository
cat jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/repositories/OrderItemRepository.java
# Also check BaseJpaRepository since OrderRepository extends it
fd -e java "BaseJpaRepository" --exec cat {}
Length of output: 2298
Qodana Community for JVM97 new problems were found
☁️ View the detailed Qodana report Contact Qodana teamContact us at [email protected]
|
github-actions
bot
added
the
type: dependency-upgrade
There was a problem hiding this comment.
Actionable comments posted: 1
🧹 Nitpick comments (3)
jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/config/JpaConfiguration.java (1)
13-13: Consider making the configuration class public.While limiting the visibility to package-private is allowed, making
JpaConfigurationpublic might align better with typical Spring Boot conventions and keep the configuration class accessible if needed by other packages. However, this may not be strictly necessary if you never access this configuration outside this package.jpa/boot-hibernate2ndlevelcache-sample/src/main/resources/application.properties (1)
42-46: Consider conditional query logging activationEnabling both query and slow-query logging simultaneously might impact performance. Consider:
- Making query logging configurable per environment
- Using a more selective slow-query threshold
jdbc.datasource-proxy.logging=slf4j jdbc.datasource-proxy.slow-query.logger-name=slow-query-logger jdbc.datasource-proxy.query.logger-name=query-logger -jdbc.datasource-proxy.query.enable-logging=true +jdbc.datasource-proxy.query.enable-logging=${QUERY_LOGGING_ENABLED:false} jdbc.datasource-proxy.slow-query.enable-logging=true +jdbc.datasource-proxy.slow-query.threshold=300jpa/boot-hibernate2ndlevelcache-sample/src/test/resources/logback-test.xml (1)
14-15: LGTM! Consider test-specific logging levelsThe configuration maintains consistency with the main logging setup. However, you might want to consider setting both loggers to DEBUG level in the test environment for more detailed debugging capabilities during tests.
<logger name="query-logger" level="DEBUG" /> -<logger name="slow-query-logger" level="WARN" /> +<logger name="slow-query-logger" level="DEBUG" />
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro
📒 Files selected for processing (8)
jpa/boot-hibernate2ndlevelcache-sample/pom.xml(2 hunks)jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/config/DatasourceProxyBeanPostProcessor.java(0 hunks)jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/config/JpaConfiguration.java(1 hunks)jpa/boot-hibernate2ndlevelcache-sample/src/main/resources/application.properties(1 hunks)jpa/boot-hibernate2ndlevelcache-sample/src/main/resources/logback-spring.xml(1 hunks)jpa/boot-hibernate2ndlevelcache-sample/src/test/java/com/example/hibernatecache/ApplicationIntegrationTest.java(2 hunks)jpa/boot-hibernate2ndlevelcache-sample/src/test/java/com/example/hibernatecache/web/controllers/CustomerControllerIT.java(2 hunks)jpa/boot-hibernate2ndlevelcache-sample/src/test/resources/logback-test.xml(1 hunks)
💤 Files with no reviewable changes (1)
- jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/config/DatasourceProxyBeanPostProcessor.java
🔇 Additional comments (12)
jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/config/JpaConfiguration.java (2)
5-6: Imports seem appropriate.
The imports for DataSourceQueryCountListener and QueryExecutionListener correctly bring in the data source proxy dependencies needed for query counting and allow you to define a Bean for query execution listening. This looks good.
15-18: Enhanced observability is a great addition.
The addition of the queryExecutionListener() method that returns a DataSourceQueryCountListener is helpful for tracking query execution counts and can assist in monitoring or troubleshooting database access behavior. Ensure there are relevant logs or metrics to leverage these counts effectively.
jpa/boot-hibernate2ndlevelcache-sample/src/test/java/com/example/hibernatecache/ApplicationIntegrationTest.java (5)
33-33: Good use of the direct invocation for insert count validation
This verifies that one insert statement is issued, aligning with expectations after creating the new customer.
35-35: Accurate select count assertion
Enforcing that exactly one select statement is executed helps confirm minimal database lookups, which is especially useful in verifying cache efficacy.
36-36: Total statement count assertion enhances clarity
By explicitly checking the total statements, the test ensures database interaction is tightly controlled and transparent.
48-48: Single select check under repeated queries
Confirming a single select statement across repeated requests demonstrates that second-level caching is functioning as intended.
49-49: Reinforcing minimal query overhead with total statement count
Ensuring only one total statement is executed validates the caching logic, helping keep the code robust under repetitive requests.
jpa/boot-hibernate2ndlevelcache-sample/src/test/java/com/example/hibernatecache/web/controllers/CustomerControllerIT.java (2)
105-108: Looks consistent with expected query counts.
Ensuring 0 inserts and exactly 2 selects (for customer and orders), and then verifying a total of 2 queries aligns with the logic described in the comment. This helps confirm that the test scenario executes the minimal number of SQL statements.
128-131: Valid check for query counts in name-based search scenario.
Similarly verifying 0 inserts, 2 selects, and a total of 2 queries for retrieving the customer and order items appears precise for this test. Good consistency in validating the expected SQL statements.
jpa/boot-hibernate2ndlevelcache-sample/pom.xml (1)
269-269: LGTM! Routine maintenance update.
The update of palantirJavaFormat from 2.47.0 to 2.50.0 is a standard maintenance update.
jpa/boot-hibernate2ndlevelcache-sample/src/main/resources/application.properties (1)
41-47: Review security implications of logging parameter values
While the logging configuration is well-structured, including parameter values in logs (jdbc.datasource-proxy.include-parameter-values=true) could potentially expose sensitive data. Consider the following recommendations:
- Implement parameter value masking for sensitive data
- Consider disabling parameter logging in production
Let's verify if there are any sensitive fields being logged:
jpa/boot-hibernate2ndlevelcache-sample/src/main/resources/logback-spring.xml (1)
23-24: LGTM! Well-structured logging configuration
The logger configuration is properly integrated with the datasource proxy properties and uses appropriate log levels for query monitoring.
| <groupId>net.ttddyy.observation</groupId> | ||
| <artifactId>datasource-micrometer-spring-boot</artifactId> | ||
| <version>1.0.6</version> |
There was a problem hiding this comment.
💡 Codebase verification
Configuration needs to be updated for micrometer-based observability
The verification revealed that while the dependency has been updated to datasource-micrometer-spring-boot, the configuration still contains old datasource-proxy related code:
JpaConfiguration.javastill imports and usesnet.ttddyy.dsproxyclassesapplication.propertiescontains outdated proxy configuration properties starting withjdbc.datasource-proxy
These need to be replaced with the appropriate micrometer configuration. Here's what needs to be changed:
- Remove the
QueryExecutionListenerbean and related imports fromJpaConfiguration.java - Remove all
jdbc.datasource-proxy.*properties fromapplication.properties - Add appropriate micrometer properties if needed (though the basic setup should work out of the box with Spring Boot auto-configuration)
🔗 Analysis chain
LGTM! Good move to micrometer-based observability.
The switch from datasource-proxy to datasource-micrometer-spring-boot aligns well with modern Spring Boot observability patterns. This change will provide better integration with Spring Boot's metrics and observability stack.
Run the following script to verify the integration:
Let me verify the configuration in the specific project. I'll check for any remaining proxy configuration and the proper setup for the new micrometer integration.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Verify the removal of old proxy configuration and presence of new micrometer configuration
# Check if there are any remaining references to the old datasource-proxy
rg -l "net\.ttddyy\.dsproxy"
# Check for proper micrometer configuration
fd -e properties -e yml -e yaml | xargs rg "management\.metrics|management\.endpoints\.web\.exposure"
Length of output: 6702
Script:
#!/bin/bash
# Check the JpaConfiguration file in the hibernate2ndlevelcache sample for any remaining proxy config
cat jpa/boot-hibernate2ndlevelcache-sample/src/main/java/com/example/hibernatecache/config/JpaConfiguration.java
# Check application.properties for micrometer configuration
cat jpa/boot-hibernate2ndlevelcache-sample/src/main/resources/application.properties
Length of output: 3181
|
Summary by CodeRabbit
New Features
TestHibernate2ndLevelCacheApplication.query-loggerandslow-query-logger.Bug Fixes
TestApplicationclass, eliminating the previous local environment launch functionality.Refactor
HibernateRepositoryforCustomerRepository,OrderItemRepository, andOrderRepository.Hibernate2ndLevelCacheApplication.CustomerController,OrderController, andOrderItemControllerfor created resources.