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IoC 컨테이너 5부 : 빈의 스코프. #3

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namnani opened this issue Nov 27, 2020 · 0 comments

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namnani commented Nov 27, 2020

@Scope("prototype")

@Scope(value = "prototype", proxyMode = ScopedProxyMode.TARGET_CLASS)

@Autowired
private ObjectProvider<Proto> proto;

public Proto getProto() {
	return proto.getIfAvailable();
}

프로토타입 빈이 싱글톤 빈을 참조하면?

아무 문제 없음.

싱글톤 빈이 프로토타입 빈을 참조하면?

프로토타입 빈이 업데이트가 안됨.
업데이트 하려면
- scoped-proxy
- ObjectProvider
- Provider(표준)

싱글톤 객체 사용시 주의할 점

프로퍼티가 공유됨. => thread safe한 방법으로 코딩을 해야함.
ApplicationContext 초기 구동시 인스턴스 생성.

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