refactor(topics): 멀티 에이전트용 지식 재편 — _Common(공통 기본기) + Domain_* 구조
에이전트 8종(대화형/프로그래머 C·S/디자이너/설계자/기획자/QA/PD/PM)에게 [공통 기본 능력 + 롤별 Specialty] 2층으로 지식을 주입하기 위한 재분류. 문서 내용·포맷은 무수정, 폴더 이동만 (6,372개 문서 수 보존 확인). - Topic_Programming → Domain_Programming (내부 구조 보존) - Topic_Graphic → Domain_Design - Topic_Business → Domain_Product - Topic_General → Domain_General - _Common 신설: Math(구 Topic_Math_Specialty), Reasoning(구 General/From_Thinking & Reasoning), Reasoning_Creativity(구 General/From_창의성), Communication(Poetic_Blog_Writing + From_writing) - 타 도메인의 From_* 폴더는 유지 (출처 표기일 뿐, 이미 도메인에 맞게 분류된 문서) - 빈 폴더 정리 (memory/procedures) - 에이전트→폴더 매핑은 workspace의 .astra/agent-knowledge-map.json (9개 에이전트) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Antigravity Agent
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---
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id: wiki-2026-0508-spring-framework
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title: Spring Framework
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category: 10_Wiki/Topics
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status: verified
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canonical_id: self
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aliases: [Spring, Spring Boot, Spring Core]
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duplicate_of: none
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source_trust_level: A
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confidence_score: 0.9
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verification_status: applied
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tags: [java, framework, dependency-injection, spring-boot]
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raw_sources: []
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last_reinforced: 2026-05-10
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github_commit: pending
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tech_stack:
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language: java
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framework: spring-boot
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---
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# Spring Framework
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## 매 한 줄
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> **"매 Java enterprise 의 IoC container — 매 Beans, AOP, MVC, Boot 의 ecosystem"**. Rod Johnson (2003) 의 J2EE 대체. 2026 현재 Spring Boot 3.4 (Java 21+, virtual threads, AOT/GraalVM native) 가 매 backend Java 의 de-facto.
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## 매 핵심
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### 매 IoC / DI
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- **ApplicationContext**: 매 Bean 의 lifecycle 관리.
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- **`@Component`, `@Service`, `@Repository`, `@Controller`**: 매 stereotype.
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- **Constructor injection**: 매 권장 (final field, immutability).
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### 매 modules
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- **Spring Core**: IoC, DI, Resource, SpEL.
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- **Spring MVC / WebFlux**: HTTP (Servlet vs reactive).
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- **Spring Data**: JPA, MongoDB, Redis repository abstraction.
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- **Spring Security**: Auth (OAuth2, JWT, OIDC).
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- **Spring Boot**: 매 auto-configuration, embedded Tomcat/Netty.
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### 매 응용
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1. REST API backend (Boot + Web + Data JPA).
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2. Reactive microservice (WebFlux + R2DBC).
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3. Batch job (Spring Batch).
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## 💻 패턴
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### Spring Boot 3.4 application
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```java
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@SpringBootApplication
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public class App {
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public static void main(String[] args) {
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SpringApplication.run(App.class, args);
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}
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}
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```
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### Constructor injection 의 service
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```java
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@Service
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public class OrderService {
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private final OrderRepository repo;
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private final PaymentClient payments;
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public OrderService(OrderRepository repo, PaymentClient payments) {
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this.repo = repo;
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this.payments = payments;
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}
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public Order place(NewOrder cmd) {
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var charge = payments.charge(cmd.amount());
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return repo.save(new Order(cmd, charge.id()));
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}
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}
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```
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### REST controller (Java 21 records)
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```java
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@RestController
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@RequestMapping("/orders")
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public class OrderController {
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private final OrderService service;
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public OrderController(OrderService s) { this.service = s; }
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@PostMapping
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public ResponseEntity<Order> create(@Valid @RequestBody NewOrder cmd) {
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return ResponseEntity.status(201).body(service.place(cmd));
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}
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}
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public record NewOrder(@NotBlank String sku, @Positive long amount) {}
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```
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### Spring Data JPA repository
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```java
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public interface OrderRepository extends JpaRepository<Order, Long> {
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List<Order> findByCustomerIdAndCreatedAfter(Long customerId, Instant after);
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}
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```
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### Configuration properties
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```java
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@ConfigurationProperties("payments")
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public record PaymentsConfig(String url, Duration timeout, String apiKey) {}
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```
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```yaml
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# application.yml
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payments:
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url: https://api.stripe.com
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timeout: 5s
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api-key: ${STRIPE_KEY}
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```
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### Virtual threads (Boot 3.2+, Java 21)
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```yaml
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spring:
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threads:
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virtual:
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enabled: true
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```
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### WebFlux reactive endpoint
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```java
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@GetMapping("/stream")
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public Flux<Event> stream() {
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return eventRepo.findAll().delayElements(Duration.ofMillis(100));
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}
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```
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### Test (slice)
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```java
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@WebMvcTest(OrderController.class)
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class OrderControllerTest {
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@Autowired MockMvc mvc;
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@MockBean OrderService service;
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@Test
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void createsOrder() throws Exception {
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when(service.place(any())).thenReturn(new Order(1L, "sku", 100));
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mvc.perform(post("/orders").contentType(APPLICATION_JSON)
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.content("""{"sku":"sku","amount":100}"""))
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.andExpect(status().isCreated());
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}
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}
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```
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## 매 결정 기준
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| 상황 | Approach |
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|---|---|
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| Java enterprise backend | Spring Boot |
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| 매 reactive, high-concurrency I/O | WebFlux + R2DBC |
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| 매 traditional blocking I/O + Java 21 | Spring MVC + virtual threads |
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| Native binary (cold start, low memory) | Spring Boot AOT + GraalVM |
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| Lightweight Java (no DI ecosystem) | Quarkus / Micronaut / pure Javalin |
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**기본값**: Spring Boot 3.4 + Java 21 + virtual threads + Spring MVC.
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## 🔗 Graph
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- 부모: [[Inversion of Control]]
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- 변형: [[Spring Boot]]
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- 응용: [[Microservices]]
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## 🤖 LLM 활용
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**언제**: Java backend, 매 enterprise integration (JPA, security, messaging) 필요.
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**언제 X**: 매 ultra-low memory (serverless cold start) — Quarkus native 의 superior; 매 non-Java stack.
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## ❌ 안티패턴
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- **Field injection (`@Autowired` private field)**: 매 testability X, 매 final X. Constructor 의 사용.
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- **God `@Configuration`**: 매 100+ bean 의 한 file — 매 module 별 분리.
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- **`@Transactional` on private**: 매 proxy 의 work X. Public + self-injection 패턴.
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- **Boot 1.x / Java 8**: 매 EOL, 매 vulnerable, 매 upgrade.
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## 🧪 검증 / 중복
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- Verified (spring.io docs, Spring Boot 3.4 release notes 2025).
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- 신뢰도 A.
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## 🕓 Changelog
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| 날짜 | 변경 |
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|---|---|
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| 2026-05-08 | Phase 1 |
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| 2026-05-10 | Manual cleanup — Spring Boot 3.4 / Java 21 modern patterns |
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