Happy Memory + ies (행복한 기억들의 기록)

JPA의 플러시(flush)에 대해서 공부한 내용을 정리해 알아보겠습니다. (기본 내용 출처는 자바 ORM 표준 JPA 프로그래밍 책 입니다.) 플러시는 영속성 컨텍스트의 변경 내용을 데이터베이스에 적용하는 작업을 말합니다. 플러시를 실행하게 되면 아래와 같은 작업이 발생하게 되는데, 영속성 컨텍스트에 있는 모든 엔티티를 스냅샷과 비교해서 변경된 엔티티를 찾아 내서 수정 쿼리를 만들어 쓰기 지연 SQL저장소에 등록하게 됩니다. 쓰기 지연 SQL 저장소의 쿼리를 데이터 베이스에 전송하여 적용 합니다. ▶ 영속성 컨텍스트를 플러시하는 방법에는 3가지가 있는데 em.flush()를 직접 호출 영속성 컨텍스트를 강제로 플러시 하는 방법으로 테스트나 다른 JPA를 함께 사용할때를 제외하고는 사용하지 않는 것이 좋..

이 스펙 이야기는 인터넷에서 떠도는 소문을 근거로 작성된 것으로 그냥 재미로 봐 주시면 될것 같습니다. 그러나 지금까지 애플의 아이폰 13, M2칩 등등 개발한 기술과 떠도는 루머를 근거로 하고 있으니 어느정도 신빙성은 있다고 생각 됩니다. :) 예상 스펙 Apple M2 칩 탑재 미니 LED 디스플레이 1080p FaceTime 카메라 탑재 새로운 디자인 베젤리스로서 더 가볍고, 더 얇은 디자인 4개의 USB-C 포트를 탑재 MagSafe 충전 어댑터 탑재 (이 부분은 개인적으로 필요하다고 생각됨) 여러가지 색상 24인치 iMac과 동일한 색상으로 출시

Apple은 2021 년 가을에 M1 칩의 후속으로 「M2」 칩 을 출시 예정으로 발표하였습니다. M2 칩을 탑재 한 새로운 제품으로 아래와 같은 라인업으로 예정 되어 있습니다. 13 인치 (혹은 14 인치) MacBook Pro의 상위 모델 16 인치 MacBook Pro 32 인치 iMac 칩에 대한 성능을 간략히 살펴보면.... 1. CPU 고성능 코어가 16코어, 고효율 코어가 4코어로서 총 20코어의 CPU TSMC의 5nm 플러스 프로세스 공정 방법으로 제조 된 「N5P」 M1칩 보다 5% 속도가 향상되고 전력효율도 10% 향상된다고 함 향후 3nm 프로세서 공정 칩 생산을 목표로 하고 있다고 함 M1 칩 5nm 프로세스인 「N5」는 이전의 7nm 공정한 칩보다 동작 속도 15%, 소비전력 3..

Been trying hard to give you a sense of what matters to me, but also to find a way to talk about the things that, uh… that scare me. "Thing," really—singular. And that thing is… loss. Losing. I'm a poor loser, I admit it. I run from it. Full speed. Others don't. Others accept it. But everything I said about my Queen is true; she is my shield. She is also a lie. I don't know when I made her up. O..

I don't play well with loss. I just don't. It's something I tend to avoid. Actively. It's weird, but… that's where my Queen comes in. And before you make a Reef joke, or mention that witch and her Witches, or her mopey little brother… Don't. My Queen is not THAT Queen. My Queen is love. My Queen is my heart. My Queen is… hard to explain. She is my memory of love. My understanding of it… only exi..

Taniks was a pain. Turns out that wasn't the real problem—though it was high on the list at the time. The real problem? The freak's STILL a pain. He ain't no Guardian, but the dude's been dead and not more times than I can track. "Died" twice by my hand alone. Second time I even looked to deliver some insurance, but he was hauled off by his goons before I could add more lead to the collection I'..

Back to honor. Back to Andal. Andal was my brother. Figuratively, but I find, more often than not, the family you unearth along the way is more real than the family you thought was the… Never mind. Andal was my brother. Period. Taniks was the four-armed, murderin' Guardian hunter who… Yeah. Andal and I… we made a bet. Only "bet" ain't the right word. Not among Hunters. What we did meant more. We..

Honor? It's tricky—means different things to different folks. Like your word… Well, your word's your word. You GIVE it. You KEEP it. Do that, regardless of all the rest, and that's honor right there. And, let me tell ya, kid… Honor matters. It's a weapon in its own right. And a shield. Zavala knows. Ikora knows. Saladin and Shaxx, they probably know a little too much. All the best Guardians know..

Hey, kid. I know I don't write you very often, ya know? But it's better than never. Ain't easy for me to find the words. I mean, it is, I find them. But I know they're not always the right ones. Too much flash. Too much looking out for how I'm looking, not enough just telling it how it is. That's why I'm doing this, Ace. That's why you and me are having these words. Easier to say them than scraw..

Taniks didn't announce himself. Didn't say a word. Just laughed a few times and tried like hell to kill us all. But we knew it was him. The stories matched the story, ya know? Which meant the boogeyman had a face—the boogeyman was REAL. We could hunt "real." We could track "real." We could end "real." Andal said something like, "The hunter is about to become the hunted at the hands of the Hunter..