[고도화] 엔티티 코드 리팩토링 - equals(), hashcode()에서 필드 접근을 getter로 바꾸기 #60
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여기서 필드에 직접 접근하면 하이버네이트가 지연 로딩하려고 만든 프록시 객체를 다룰 때 필드 값이 `null`일 수 있음 그러면 제대로 비교 로직을 수행할 수 없기 때문에 getter를 이용함. 이것으로 프록시 객체를 타더라도 제대로 값을 읽어올 수 있음.
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이 pr은 엔티티의
equals(),hashcode()가 값 비교를 하기 위해 필드에 직접 접근하려는 것을 getter 접근으로 바꾼다.프록시 객체를 사용하는 하이버네이트의 지연로딩을 고려하여, 값 비교를 제대로 수행하지 못하는 일이 없도록 한다.
This closes #59