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kotlin + JPA ๋ฌธ์ œ์ 

  1. ๋™์  ํ”„๋ก์‹œ๋กœ ๋™์ž‘ํ•˜๊ธฐ ๋•Œ๋ฌธ์— ์ฝ”ํ‹€๋ฆฐ์˜ ์ฒ ํ•™๊ณผ ์–ด๊ธ‹๋‚˜๋Š” ๋ฉด์ด ๋ช‡ ๊ฐœ ์žˆ๋‹ค.
  • ์ฝ”ํ‹€๋ฆฐ์˜ ๊ธฐ๋ณธ ํด๋ž˜์Šค๋Š” final์ธ๋ฐ, ํ”„๋ก์‹œ ๊ฐ์ฒด๋ฅผ ๋งŒ๋“ค๊ธฐ ์œ„ํ•ด์„  ์ƒ์†์„ ๋ฐ›์•„์•ผ ํ•œ๋‹ค. ์ฆ‰, open์„ ๋งค๋ฒˆ ๋ถ™์—ฌ์ค˜์•ผ ํ•จ (ํ”Œ๋Ÿฌ๊ทธ์ธ์œผ๋กœ ์–ด๋Š์ •๋„ ํ•ด๊ฒฐ)
  • val๋กœ ํ”„๋กœํผํ‹ฐ๋ฅผ read-onlyํ•˜๊ฒŒ ๋งŒ๋“ค๋ฉด ์—”ํ‹ฐํ‹ฐ๋ฅผ ์ˆ˜์ •์‹œํ‚ฌ ์ˆ˜ ์—†์Œ (์ œ์ผ ์ค‘์š”) ๊ทธ๋ ‡๋‹ค๊ณ  var๋กœ ํ•˜์ž๋‹ˆ setter๊ฐ€ ์ƒ์„ฑ๋˜์–ด ์ˆ˜์ •์˜ ์—ฌ์ง€๊ฐ€ ์ƒ๊ธฐ๊ณ , ์ปค์Šคํ…€ setter๋ฅผ ๋งŒ๋“ค์ž๋‹ˆ ๋ณด์ผ๋Ÿฌ ์ฝ”๋“œ๊ฐ€ ์ƒ์„ฑ๋จ
  • ๊ฒฐ๊ตญ var๋กœ setter๋ฅผ ์—ด์–ด์•ผ ํ•˜๋Š”๋ฐ, ์—”ํ‹ฐํ‹ฐ์˜ ์บก์Šํ™”๊ฐ€ ๋ณด์žฅ๋˜์ง€ ๋ชปํ•จ.
  • ์–ด์ฉ” ์ˆ˜ ์—†์ด ์•ˆ๊ณ  ๊ฐ€์•ผํ•˜๋Š” ๋ฌธ์ œ์ด๊ณ , ๋ฆฐํŠธ๋‚˜ ์ปจ๋ฒค์…˜์œผ๋กœ ์ตœ๋Œ€ํ•œ ๋ชป ์‚ฌ์šฉํ•˜๊ฒŒ ๋ง‰์•„์•ผ ํ•˜๋Š”๊ฒŒ ์ตœ์„ 

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