<div class="type-placeholder" style="font-size: 15px; letter-spacing: -0.3px; color: #abb0b5; white-space: pre-wrap;">ApplicationContext말고 구체화된 클래스(예: AnnotationConfigApplicationContext)를 쓰는 이유가 getBeanDefinition을 쓸 수 없어서라고 하셨는데, 그 이유가 무엇인가요?</div>
<div class="type-placeholder" style="font-size: 15px; letter-spacing: -0.3px; color: #abb0b5; white-space: pre-wrap;">AnnotationConfigApplicationContext가 구현한 여러가지 인터페이스중, ApplicationContext가 아닌 다른 인터페이스가 getBeanDefinition이라는 메서드를 제공하기 때문이라는 말씀이신가요?</div>

안녕하세요. Hyunsang Han님, <a class="waffle-rich-text-link" style="color: #1155cc; font-family: Arial; font-size: 16px; white-space: pre-wrap; text-decoration-skip-ink: none;" href="https://www.inflearn.com/blogs/617">공식 서포터즈</a> OMG입니다. 
네, 해당 메서드는 GenericApplicationContext가 제공하며 이 클래스를 AnnotationConfigApplicationContext가 상속받아서 사용 가능하게 되었습니다.
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<img src="https://cdn.inflearn.com/public/comments/dc3aad56-0091-411f-a4d8-89f16935214a/blob" alt="" />
 &lt;GenericApplicationContext 中&gt;
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<img src="https://cdn.inflearn.com/public/comments/80607a88-e5b2-4086-9625-e5e350a357fb/blob" alt="" />
&lt;AnnotationConfigApplicationContext 中:GenericApplicationContext를 상속받아 사용 가능한 메서드 모음&gt;
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참고:
ApplicationContext
<a href="https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/context/ApplicationContext.html">ApplicationContext (Spring Framework 5.3.10 API)</a>
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AnnotationConfigApplicationContext
<a href="https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/context/annotation/AnnotationConfigApplicationContext.html">AnnotationConfigApplicationContext (Spring Framework 5.3.10 API)</a>
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GenericApplicationContext
<a href="https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/context/support/GenericApplicationContext.html">GenericApplicationContext (Spring Framework 5.3.10 API)</a>
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감사합니다.

인프런 커뮤니티 질문&답변

getBeanDefinition