spring-data-jpa

Use when designing or implementing Spring Data JPA on Spring Boot 4 — repository boundaries, projections, query patterns, custom repositories, CQRS read models, entity relationships, or persistence performance fixes. Not for generic SQL help, database admin work, or project-wide migration (see the springboot-migration skill).

1.04x

Quality

85%

Does it follow best practices?

Impact

91%

1.04x

Average score across 3 eval scenarios

Securityby

Passed

No findings from the security scan

Evaluation results

89%

-3%

Enrollment Module Persistence Layer

Enrollment CQRS and relationship design

Criteria

Without this skill

With this skill

Explicit join entity

100%

Enrollment attributes present

100%

Package-private repository

Public query service

100%

JdbcTemplate in query service

100%

70%

View models as Records

100%

Class-level readOnly transaction

100%

ID-based cross-context references

100%

No @OneToMany on parent

100%

LAZY fetch on associations

100%

PageImpl for pagination

100%

No bidirectional @OneToOne

100%

SOLUTION.md structure

100%

84%

14%

Marketplace Order Persistence Layer

Order persistence read-side with projections and JOIN FETCH

Criteria

Without this skill

With this skill

Aggregate root repositories only

100%

@Query for multi-filter search

100%

Projection for dashboard

100%

Java Record projection type

100%

LEFT JOIN FETCH usage

DISTINCT with JOIN FETCH

@Param binding

100%

Text blocks in @Query

100%

@Transactional(readOnly=true)

100%

FetchType.LAZY on @ManyToOne/@OneToOne

100%

Flat record + service assembly for nested projection

33%

100%

Structured SOLUTION.md

100%

Product Catalog Persistence Layer

Spring Data JPA product catalog: dynamic search, bulk ops, batch import

Criteria

Without this skill

With this skill

Repository Impl naming

100%

No derived method for search

100%

@Modifying on bulk update

100%

@Transactional on bulk service call

100%

Hibernate batch_size configured

100%

order_inserts enabled

100%

order_updates enabled

100%

SEQUENCE ID strategy

100%

Flush+clear in batch import loop

100%

Projection for search results

100%

Java Record for projection

100%

readOnly transaction on reads

100%

Correct Hibernate 6+ SQL logger

100%

Repository: a-pavithraa/springboot-skills-marketplace
Path: plugins/springboot-architecture/skills/spring-data-jpa/SKILL.md
Commit: 6277c14

Evaluated: 17 days ago
Agent: Claude Code
Model: Claude Sonnet 4.6

Table of Contents

Marketplace Order Persistence Layer Enrollment Module Persistence Layer Product Catalog Persistence Layer

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