layout: default title: Review Checklist - JPA and Hibernate parent: Week 6 - JPA and Hibernate nav_order: 7 —

🔍 Review Checklist – JPA and Hibernate

This checklist is used during the weekly review session to evaluate code quality, understanding, and implementation.

🎯 Review Objective

Ensure the learner:

Understands JPA concepts clearly
Writes clean and maintainable code
Implements correct entity relationships
Follows backend best practices

🧱 1. Entity Design Review

☐ @Entity and @Table used correctly
☐ Primary key properly defined (@Id, @GeneratedValue)
☐ Field names are meaningful and consistent
☐ No unnecessary fields
☐ Proper encapsulation (getters/setters)

🔗 2. Relationship Mapping Review

☐ Correct use of @OneToMany and @ManyToOne
☐ mappedBy used correctly
☐ Foreign key created in database
☐ Parent-child relationship properly maintained
☐ Cascade type used appropriately
☐ FetchType is set to LAZY where needed

⚙️ 3. Repository Layer Review

☐ Repository extends JpaRepository
☐ No unnecessary custom queries
☐ Method names follow Spring Data conventions

🧩 4. Service Layer Review

☐ Business logic is in service layer (not controller)
☐ Proper handling of null / missing data
☐ Exceptions handled correctly
☐ Relationships are set properly (e.g., course.setStudent(student))
☐ Code is modular and readable

🌐 5. Controller Layer Review

☐ REST endpoints are correctly defined
☐ Proper use of @RequestBody and @PathVariable
☐ No business logic inside controller
☐ Clear and meaningful API structure

🧪 6. Validation Review

☐ Input validation implemented (@NotBlank, @Email)
☐ Invalid data is handled properly
☐ Error messages are meaningful

🧹 7. Code Quality Review

☐ Code is clean and readable
☐ Naming conventions followed
☐ No duplicate code
☐ Methods are not too long
☐ Proper formatting

⚠️ 8. Common Pitfalls Check

☐ No unnecessary EAGER fetching
☐ No missing mappedBy
☐ No LazyInitializationException
☐ No direct repository calls from controller
☐ No infinite recursion in relationships

🧪 9. Testing & Functionality

☐ APIs tested using Postman
☐ CRUD operations working
☐ Relationships working correctly
☐ Data persists in database
☐ Edge cases tested

🧠 10. Concept Understanding (Ask During Review)

Ask the learner:

What is ORM?
Difference between JPA and Hibernate?
Why use LAZY fetching?
What is mappedBy?
What happens if relationship is not set properly?

📊 Review Summary

Category	Rating (1-5)
Concept Clarity
Code Quality
Problem Solving
Debugging Ability
Overall

💬 Feedback Section

✅ Strengths

⚠️ Areas for Improvement

🚀 Action Items

🏁 Final Decision

☐ Ready to move to next week
☐ Needs improvement (repeat concepts)

💡 Mentor Notes

Focus on understanding, not just completion
Encourage explanation, not memorization
Ask “why” frequently
Guide, don’t spoon-feed

🚀 Next Step

Proceed to next module or revisit weak areas based on review.

🔥 Why this is powerful

Aditya, this transforms your mentoring into:

Structured engineering evaluation
Real-world code review practice
Repeatable framework
Scalable mentorship model

This is exactly how senior engineers mentor in top teams.