Agent skill

Jpa Patterns

Spring Boot中的JPA/Hibernate模式，用于实体设计、关系处理、查询优化、事务管理、审计、索引、分页和连接池。

Install Jpa Patterns

skills CLI

$ npx skills add affaan-m/ECC --skill jpa-patterns -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install affaan-m/ECC jpa-patterns --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .claude/skills && cp -r skills-src/docs/zh-CN/skills/jpa-patterns .claude/skills/jpa-patterns && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "jpa-patterns" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/zh-CN/skills/jpa-patterns into .claude/skills/jpa-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "jpa-patterns", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/affaan-m/ECC/tree/main/docs/zh-CN/skills/jpa-patterns

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add affaan-m/ECC --skill jpa-patterns -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install affaan-m/ECC jpa-patterns --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .agents/skills && cp -r skills-src/docs/zh-CN/skills/jpa-patterns .agents/skills/jpa-patterns && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "jpa-patterns" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/zh-CN/skills/jpa-patterns into .agents/skills/jpa-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "jpa-patterns", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add affaan-m/ECC --skill jpa-patterns -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install affaan-m/ECC jpa-patterns --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/docs/zh-CN/skills/jpa-patterns .cursor/skills/jpa-patterns && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "jpa-patterns" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/zh-CN/skills/jpa-patterns into .cursor/skills/jpa-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "jpa-patterns", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/affaan-m/ECC.git --path docs/zh-CN/skills/jpa-patterns

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add affaan-m/ECC --skill jpa-patterns -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install affaan-m/ECC jpa-patterns --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/docs/zh-CN/skills/jpa-patterns .gemini/skills/jpa-patterns && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "jpa-patterns" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/zh-CN/skills/jpa-patterns into .gemini/skills/jpa-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "jpa-patterns", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install affaan-m/ECC jpa-patterns

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add affaan-m/ECC --skill jpa-patterns -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .github/skills && cp -r skills-src/docs/zh-CN/skills/jpa-patterns .github/skills/jpa-patterns && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "jpa-patterns" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/zh-CN/skills/jpa-patterns into .github/skills/jpa-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "jpa-patterns", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add affaan-m/ECC --skill jpa-patterns -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install affaan-m/ECC jpa-patterns --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/affaan-m/ECC.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/docs/zh-CN/skills/jpa-patterns .opencode/skills/jpa-patterns && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "jpa-patterns" agent skill from https://github.com/affaan-m/ECC/tree/main/docs/zh-CN/skills/jpa-patterns into .opencode/skills/jpa-patterns/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "jpa-patterns", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: jpa-patterns
GitHub stars: 276k
Used in: 3 other repos
Token cost: ~847 tokens
SKILL.md length: 101 words
Files: 1
Skills in repo: 683
Repo updated: Oct 10, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Spring Boot中的JPA/Hibernate模式，用于实体设计、关系处理、查询优化、事务管理、审计、索引、分页和连接池。

Tasks that involve ORMs and data access
SKILL.md covers 何时激活, 实体设计, 关联关系和 N+1 预防 and 存储库模式, plus 7 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
Tasks that involve Backend development

What it does

Jpa Patterns is an agent skill from affaan-m/ECC. Spring Boot中的JPA/Hibernate模式，用于实体设计、关系处理、查询优化、事务管理、审计、索引、分页和连接池。

Its SKILL.md is about 850 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Backend & APIs, covering ORMs and data access and Backend development. It works with Spring Boot. The repository describes itself as: The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond. The licence is MIT.

When your agent uses it

Tasks that involve ORMs and data access
Tasks that involve Backend development

Example prompts

“/jpa-patterns”

What it can do on your machine

Read from SKILL.md and the folder at commit 4eb71d9. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are java).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Jpa Patterns loads about 847 tokens when it runs. Until then it costs about 19 tokens; SKILL.md has 101 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~19
When it runs · the whole SKILL.md, loaded when a task matches: ~847

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from affaan-m/ECC at commit 4eb71d9, republished under its MIT licence (© affaan-m). 101 words, ~847 tokens.

Download SKILL.mdSave it as .claude/skills/jpa-patterns/SKILL.md (or your agent's skills folder).

name: jpa-patterns
description: Spring Boot中的JPA/Hibernate模式，用于实体设计、关系处理、查询优化、事务管理、审计、索引、分页和连接池。
origin: ECC

JPA/Hibernate 模式

用于 Spring Boot 中的数据建模、存储库和性能调优。

何时激活

设计 JPA 实体和表映射时
定义关系时 (@OneToMany, @ManyToOne, @ManyToMany)
优化查询时 (N+1 问题预防、获取策略、投影)
配置事务、审计或软删除时
设置分页、排序或自定义存储库方法时
调整连接池 (HikariCP) 或二级缓存时

实体设计

java

@Entity
@Table(name = "markets", indexes = {
  @Index(name = "idx_markets_slug", columnList = "slug", unique = true)
})
@EntityListeners(AuditingEntityListener.class)
public class MarketEntity {
  @Id @GeneratedValue(strategy = GenerationType.IDENTITY)
  private Long id;

  @Column(nullable = false, length = 200)
  private String name;

  @Column(nullable = false, unique = true, length = 120)
  private String slug;

  @Enumerated(EnumType.STRING)
  private MarketStatus status = MarketStatus.ACTIVE;

  @CreatedDate private Instant createdAt;
  @LastModifiedDate private Instant updatedAt;
}

启用审计：

java

@Configuration
@EnableJpaAuditing
class JpaConfig {}

关联关系和 N+1 预防

java

@OneToMany(mappedBy = "market", cascade = CascadeType.ALL, orphanRemoval = true)
private List<PositionEntity> positions = new ArrayList<>();

默认使用延迟加载；需要时在查询中使用 JOIN FETCH
避免在集合上使用 EAGER；对于读取路径使用 DTO 投影

java

@Query("select m from MarketEntity m left join fetch m.positions where m.id = :id")
Optional<MarketEntity> findWithPositions(@Param("id") Long id);

存储库模式

java

public interface MarketRepository extends JpaRepository<MarketEntity, Long> {
  Optional<MarketEntity> findBySlug(String slug);

  @Query("select m from MarketEntity m where m.status = :status")
  Page<MarketEntity> findByStatus(@Param("status") MarketStatus status, Pageable pageable);
}

使用投影进行轻量级查询：

java

public interface MarketSummary {
  Long getId();
  String getName();
  MarketStatus getStatus();
}
Page<MarketSummary> findAllBy(Pageable pageable);

事务

使用 @Transactional 注解服务方法
对读取路径使用 @Transactional(readOnly = true) 以进行优化
谨慎选择传播行为；避免长时间运行的事务

java

@Transactional
public Market updateStatus(Long id, MarketStatus status) {
  MarketEntity entity = repo.findById(id)
      .orElseThrow(() -> new EntityNotFoundException("Market"));
  entity.setStatus(status);
  return Market.from(entity);
}

分页

java

PageRequest page = PageRequest.of(pageNumber, pageSize, Sort.by("createdAt").descending());
Page<MarketEntity> markets = repo.findByStatus(MarketStatus.ACTIVE, page);

对于类似游标的分页，在 JPQL 中包含 id > :lastId 并配合排序。

索引和性能

为常用过滤器添加索引（status、slug、外键）
使用与查询模式匹配的复合索引（status, created_at）
避免 select *；仅投影需要的列
使用 saveAll 和 hibernate.jdbc.batch_size 进行批量写入

连接池 (HikariCP)

推荐属性：

spring.datasource.hikari.maximum-pool-size=20
spring.datasource.hikari.minimum-idle=5
spring.datasource.hikari.connection-timeout=30000
spring.datasource.hikari.validation-timeout=5000

对于 PostgreSQL LOB 处理，添加：

spring.jpa.properties.hibernate.jdbc.lob.non_contextual_creation=true

缓存

一级缓存是每个 EntityManager 的；避免在事务之间保持实体
对于读取频繁的实体，谨慎考虑二级缓存；验证驱逐策略

迁移

使用 Flyway 或 Liquibase；切勿在生产中依赖 Hibernate 自动 DDL
保持迁移的幂等性和可添加性；避免无计划地删除列

测试数据访问

首选使用 Testcontainers 的 @DataJpaTest 来镜像生产环境
使用日志断言 SQL 效率：设置 logging.level.org.hibernate.SQL=DEBUG 和 logging.level.org.hibernate.orm.jdbc.bind=TRACE 以查看参数值

请记住：保持实体精简，查询有针对性，事务简短。通过获取策略和投影来预防 N+1 问题，并根据读写路径建立索引。

Files

Just SKILL.md in docs/zh-CN/skills/jpa-patterns of affaan-m/ECC.

Open the folder on GitHubat commit 4eb71d9

Used in 3 other repositories

We found 3 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 3 other GitHub owners. This page covers the copy in affaan-m/ECC, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Jpa Patterns next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Jpa Patterns compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Jpa Patterns this skillaffaan-m/ECC	276k	3 repos	~847	Automated safety check: Pass	MIT	today
Java Patternssoftspark/ai-toolkit	179	—	~3.4k	Automated safety check: Pass	Apache-2.0	2 days ago
Jpa Patternsxu-xiang/everything-claude-code-zh	2k	—	~908	Automated safety check: Pass	MIT	7 mo ago
Grails Developer Guideapache/grails-core	2.9k	—	~4.9k	Automated safety check: Pass	Apache-2.0	today
Java ArchitectJeffallan/claude-skills	12k	—	~1.5k	Automated safety check: Pass	MIT	7 days ago
Spring Boot EngineerJeffallan/claude-skills	12k	—	~1.9k	Automated safety check: Pass	MIT	7 days ago

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Questions about Jpa Patterns

What does Jpa Patterns do?

Spring Boot中的JPA/Hibernate模式，用于实体设计、关系处理、查询优化、事务管理、审计、索引、分页和连接池。. Jpa Patterns is an agent skill from affaan-m/ECC.

When should I use Jpa Patterns?

Jpa Patterns fits situations like: tasks that involve ORMs and data access; tasks that involve Backend development.

How do I install Jpa Patterns in Claude Code?

Run `npx skills add affaan-m/ECC --skill jpa-patterns -a claude-code`. Or copy the skill folder (docs/zh-CN/skills/jpa-patterns in affaan-m/ECC) into .claude/skills/jpa-patterns in your project. Claude Code loads it when a task matches its description.

How do I install Jpa Patterns in Codex?

Run `npx skills add affaan-m/ECC --skill jpa-patterns -a codex`. Or copy the skill folder (docs/zh-CN/skills/jpa-patterns in affaan-m/ECC) into .agents/skills/jpa-patterns in your project. Codex loads it when a task matches its description.

Can I use Jpa Patterns in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add affaan-m/ECC --skill jpa-patterns -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/jpa-patterns, .gemini/skills/jpa-patterns, .github/skills/jpa-patterns and .opencode/skills/jpa-patterns in your project.

What does Jpa Patterns need to run?

SKILL.md names no scripts, command-line tools or credentials: Jpa Patterns is instructions for the agent only.

Does Jpa Patterns access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Jpa Patterns safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Jpa Patterns use?

Jpa Patterns is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Jpa Patterns use?

About 847 tokens (SKILL.md is roughly 3.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Jpa Patterns?

Skills that share tags, products or a category with Jpa Patterns: Java Patterns (softspark/ai-toolkit, 179 stars), Jpa Patterns (xu-xiang/everything-claude-code-zh, 2k stars), Grails Developer Guide (apache/grails-core, 2.9k stars) and Java Architect (Jeffallan/claude-skills, 12k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Jpa Patterns?

affaan-m (a GitHub user) maintains it in affaan-m/ECC, which has 276,111 GitHub stars. The repository holds 683 skills in this directory. The repository was last updated on October 10, 2026.

Source: affaan-m/ECC on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Jpa Patterns

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

JPA/Hibernate 模式

何时激活

实体设计

关联关系和 N+1 预防

存储库模式

事务

分页

索引和性能

连接池 (HikariCP)

缓存

迁移

测试数据访问

Files

Used in 3 other repositories

Compare with similar skills

Similar skills

More from affaan-m/ECC

Related

Questions about Jpa Patterns