# 가드가 식별자를 찾는 방식
49:  public boolean usesIdentityGeneration(Class<?> entityType) {
50:    return identifierField(entityType)
51:        .map(field -> field.getAnnotation(GeneratedValue.class))
52:        .filter(Objects::nonNull)
53:        .map(generated -> generated.strategy() == GenerationType.IDENTITY)
54:        .orElse(false);
55:  }
56:
57:  /**
58:   * Finds the {@code @Id} field, walking superclasses.
59:   *
60:   * <p>Superclasses are walked because a mapped superclass carrying the identifier is the common
61:   * shape; stopping at the declared class would silently classify every such entity as "not
62:   * identity" and let the guard pass on exactly the entities it was written for.
63:   */
64:  private static Optional<Field> identifierField(Class<?> entityType) {
65:    for (Class<?> current = entityType;
66:        current != null && current != Object.class;
67:        current = current.getSuperclass()) {
68:      for (Field field : current.getDeclaredFields()) {
69:        if (field.isAnnotationPresent(Id.class)) {
70:          return Optional.of(field);
71:        }
72:      }
73:    }
74:    return Optional.empty();
75:  }

# 이 타입을 언급하는 곳 전부 (자기 파일 포함)
adapter/outbound/persistence-jpa/src/postgresqlIntegrationTest/java/dev/caskeleton/adapter/outbound/persistence/platform/IdStrategyContractTest.java:18: * <p>This is the measurement behind {@code HibernateBatchConfigurationGuard}. The guard refuses an
adapter/outbound/persistence-jpa/src/test/java/dev/caskeleton/adapter/outbound/persistence/hibernate/batch/HibernateBatchConfigurationGuardTest.java:14:  private final HibernateBatchConfigurationGuard guard = new HibernateBatchConfigurationGuard();
adapter/outbound/persistence-jpa/src/main/java/dev/caskeleton/adapter/outbound/persistence/hibernate/batch/HibernateBatchConfigurationGuard.java:23:public final class HibernateBatchConfigurationGuard {
adapter/outbound/persistence-jpa/src/testkit/java/dev/caskeleton/adapter/outbound/persistence/testkit/id/IdentityEntity.java:16: * HibernateBatchConfigurationGuard} uses the same fact to refuse a batch profile that targets it.
#   그 타입을 인스턴스화하는 main 코드: 0
#   같은 패키지의 프로파일 레지스트리를 읽는 main 코드: 0
#   계획 문서가 이 과제의 산출물로 적은 것
2937:- Produces: Named batch profiles and startup diagnostics for IDENTITY and sequence mismatch.

# 가드가 거절하려는 전략이 main 에 나타나는 곳
adapter/outbound/persistence-jpa/src/main/java/dev/caskeleton/adapter/outbound/persistence/hibernate/batch/HibernateBatchConfigurationGuard.java:13: * <p>The case that matters is {@link GenerationType#IDENTITY}. An identity column's value is
adapter/outbound/persistence-jpa/src/main/java/dev/caskeleton/adapter/outbound/persistence/hibernate/batch/HibernateBatchConfigurationGuard.java:42:              + " uses GenerationType.IDENTITY, and IDENTITY disables insert batching: Hibernate"
adapter/outbound/persistence-jpa/src/main/java/dev/caskeleton/adapter/outbound/persistence/hibernate/batch/HibernateBatchConfigurationGuard.java:53:        .map(generated -> generated.strategy() == GenerationType.IDENTITY)
#   main 에서 @GeneratedValue 를 쓰는 줄: 0

# 출하 엔티티의 식별자 접근 방식
#   main 의 @Entity 파일: 32
#   그중 @Id 를 필드에 단 파일: 27
#   @Id 바로 뒤가 메서드 선언인 것 (프로퍼티 접근): 0
#   @Access 나 AccessType 을 쓰는 줄 (저장소 전체): 0
#   @EmbeddedId 를 쓰는 main 파일: LiveEventEntity.java