Dependency Injection์„ ์šฐ๋ฆฌ๋ง๋กœ ๋ญ๋ผ๊ณ  ํ•˜๋ฉด ์ข‹์„๊นŒ์š”?

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๋ฐ•์„ฑ์ฒ 

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Jun 7, 2009, 10:38:41โ€ฏAM6/7/09
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์˜์กด์„ฑ ์ฃผ์ž…์ด๋ผ๋Š” ํ‘œํ˜„์ด ์•ฝ๊ฐ„ ์• ๋งคํ•˜๋‹ค๊ณ  ์ƒ๊ฐ๋˜์ง€๋งŒ ์›Œ๋‚™ ๋„“๊ฒŒ ์‚ฌ์šฉ๋˜๊ณ  ์žˆ์–ด ํŠน๋ณ„ํžˆ ๊ฑด๋“œ๋ฆฌ์ง€ ์•Š์œผ๋ ค๊ณ  ํ–ˆ๋Š”๋ฐ Spring in
Action 2ํŒ ํ•œ๊ธ€ํŒ์—์„œ ์—”ํŠธ์›์Šค ์ „์ง€ํ›ˆ๋‹˜์ด ์ข…์† ๊ฐ์ฒด ์ฃผ์ž…์ด๋ผ๊ณ  ๋ฒˆ์—ญํ•˜์…จ๋”๋ผ๊ณ ์š”. ์ฑ… ๊ณต์งœ๋กœ ๋ฐ›์•„ ๋†“๊ณ  ๋’ค์ชฝ๋งŒ ๋ดค...-
_-);;

๊ทธ๋ž˜์„œ ํ•œ๋ฒˆ ์–˜๊ธฐ๋ผ๋„ ๋‚˜๋ˆ ๋ณด๋ฉด ์–ด๋–จ๊นŒ ํ•ฉ๋‹ˆ๋‹ค.

injection์„ ์ฃผ์ž…์œผ๋กœ ํ•œ ๊ฒƒ์€ ๋งŒ์กฑํ•˜๊ณ ์š”.
dependency๋ฅผ ๋ฌด์—‡์œผ๋กœ ํ•˜๋ฉด ์ข‹์„์ง€...

์‚ฌ์ „์„ ๊ฒ€์ƒ‰ํ•˜๋‹ˆ

dependency [dipรฉndษ™nsi]

1 ๋ช…์‚ฌ
* (๋ถˆ๊ฐ€์‚ฐ) ์˜์กด (์ƒํƒœ)
* ์ข…์†๋ฌผ; ๋ถ€์† ๊ฑด๋ฌผ, ๋ณ„๊ด€
* ์†๊ตญ, ๋ณดํ˜ธ๋ น
* ์‹์†”์ด ๋”ธ๋ฆผ
* ์˜์กด์ฆ, ์ค‘๋…(์ฆ)

์ด๋ ‡๊ฒŒ ๋‚˜์˜ค๋„ค์š”.

์ข…์† ๊ฐ์ฒด ์ฃผ์ž…์ด๋ผ๋Š” ํ‘œํ˜„์€ ๊ตฌ์ฒด์ ์ด๊ธฐ๋Š” ํ•˜์ง€๋งŒ ์‚ด์ง ๋ฉ‹์ด ์—†๋‹ค๋Š” ์ƒ๊ฐ๋„ ๋“ค๊ณ  ๊ณผ์—ฐ ๊ฐ์ฒด๋กœ ํ•œ์ •(?)ํ•˜๋Š” ๊ฒƒ์ด ์ข‹์„์ง€๋„ ๋ชจ๋ฅด๊ฒ ์Šต
๋‹ˆ๋‹ค. ๋ฌด์—‡๋ณด๋‹ค ์ข…์†์ด๋ผ๋Š” ํ‘œํ˜„์ด ๊ฑธ๋ฆฌ๋Š”๋ฐ ์‹ค ์„ธ๊ณ„์—์„œ๋Š” ์ฃผ๋œ ๊ฒƒ์— ๋ถ€์†๋œ ๊ฒƒ์ด ์ข…์†ํ•˜์ง€๋งŒ ๊ฐ์ฒด์ง€ํ–ฅ ์„ธ์ƒ์—์„œ๋Š” ์ฃผ๋œ ๊ฒƒ์ด ๋ถ€์†
๋œ ๊ฒƒ์— ์ข…์†๋˜๋Š” ๋“ฏ ํ•ฉ๋‹ˆ๋‹ค. ๊ทธ๋Ÿฐ ๋œป์—์„œ ์ข…์† ๊ฐ์ฒด๋ผ๊ณ  ํ•  ๋•Œ ์–ด์ง€๋Ÿฌ์›€์ฆ์ด ์‚ด์ง ์ƒ๊ธฐ๋”๊ตฐ์š”.

๋Œ€์‹  ์ƒ๊ฐํ•ด๋ณธ ๊ฒƒ์€..

์˜์กด ๊ด€๊ณ„ ์ฃผ์ž…
๋ถ€์†๋ฌผ ์ฃผ์ž…

์•„๋งˆ๋„ ๊ด€๋ จ ๋…ผ์˜๊ฐ€ ์ด์ „์—๋„ ์žˆ์—ˆ์„ ๋ฒ• ํ•œ๋ฐ... ์–ด๋””์„œ ๋ณธ ๊ฒƒ ๊ฐ™๊ธฐ๋„ ํ•˜๊ณ ... ๊ทธ๋Ÿฐ๋ฐ ๋ชป ์ฐพ๊ฒ ๋„ค์š”. ^^

์•ˆ์˜ํšŒ

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Jun 7, 2009, 11:36:07โ€ฏAM6/7/09
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์˜์กด ๊ด€๊ณ„ ์ฃผ์ž…
๋ถ€์†๋ฌผ ์ฃผ์ž…

'๋ถ€์†๋ฌผ ์ฃผ์ž…'์€ ์–ด๊ฐ์ด ๊ดœ์ฑƒ๊ตฐ์š”.
๋ฐ˜๋ฉด '์˜์กด ๊ด€๊ณ„ ์ฃผ์ž…'์€ '์˜์กด ๊ฐ์ฒด ์ฃผ์ž…'๋ณด๋‹ค ๋‚˜์œ ์„ ํƒ์ด๋ผ ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค.

'๊ด€๊ณ„'๋ผ๋Š” ๋Œ€์ƒ ์ž…์žฅ์—์„œ ๋ณด๋ฉด DI๊ฐ€ ๊ด€๊ณ„๋ฅผ ์ฃผ์ž…ํ•œ๋‹ค๋Š” ํ‘œํ˜„์€

Toby Lee

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Jun 7, 2009, 6:28:17โ€ฏPM6/7/09
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UML ํ•œ๊ธ€์šฉ์–ด๋ฅผ ๋ณด๋ฉด dependency๋ฅผ ์ข…์†์ด๋ผ๊ณ  ๋งŽ์ด ์“ฐ๋”๊ตฐ์š”.
์ข‹์€ ๋ฒˆ์—ญ์šฉ์–ด๋ผ๊ณ  ๋ณด์ด์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ์Šคํ”„๋ง์ด UML๋„ ์•„๋‹ˆ๊ณ ..



2009/6/8 ์•ˆ์˜ํšŒ <ahnyo...@gmail.com>

Toby Lee

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Jun 7, 2009, 6:43:15โ€ฏPM6/7/09
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Injection์€ ์•ก์ฒด๋ฅ˜๋‚˜ ์•ฝํ’ˆ, ์ถ”์ƒ์ ์ธ ๋‚ด์šฉ์„ ๋„ฃ๋Š”๋‹ค๊ณ  ํ•  ๋•Œ ์‚ฌ์šฉํ•˜์ง€, ์–ด๋–ค ์…€ ์ˆ˜ ์žˆ๋Š” ๋ฌผ์ฒด๋ฅผ
์ง‘์–ด๋„ฃ๋Š”๋ฐย ์‚ฌ์šฉํ•˜๋Š” ์šฉ์–ด๊ฐ€ ์•„๋‹™๋‹ˆ๋‹ค. ๊ทธ๋Ÿฐ๋ฉด์—์„œ ๊ฐ์ฒด๊ฐ€ ์ฃผ์ž…๋˜์—ˆ๋‹ค๋Š” ๋ง์€ ์–ธ์–ด์ ์œผ๋กœย ๋ฐ”๋ฅธ ํ‘œํ˜„์ด ์•„๋‹ˆ์ฃ . ๋ถ€์†๋ฌผ๋„ ๋งˆ์ฐฌ๊ฐ€์ง€ ์ž…๋‹ˆ๋‹ค.
๊ฒŒ๋‹ค๊ฐ€ย ์ž๋ฐ”์—์„œ๋Š” ๊ฐ์ฒด๊ฐ€ ์–ด๋”” ์ง์ ‘ ๋“ค์–ด๊ฐ€์ง€๋Š” ๊ฒƒ๋„ ์•„๋‹ˆ์ฃ . ๋‹จ์ง€ ๋ ˆํผ๋Ÿฐ์Šค๋งŒ ๋„˜๊ฒจ์ง€๋Š” ๊ฑฐ์ฃ . ๊ฐ์ฒด๋ฅผ ์งœ์„œ ๊ทธ ์ผ๋ถ€๋ฅผ ์ฐ”๋”์ฐ”๋” ๋„ฃ์–ด์ค„๊ฒŒ ์•„๋‹ˆ๋ผ๋ฉด ๊ฐ์ฒด ์ฃผ์ž…์ด๋ž€ ํ‘œํ˜„์€ ๋ถ„๋ช… ์ด์ƒํ•ฉ๋‹ˆ๋‹ค. ์™œ ๋” ๊ฐœ๋…์ด ๋ถ„๋ช…ํ•œ dependent object injection์ด ์•„๋‹ˆ๋ผ, ์ถ”์ƒ์ ์ธ ํ‘œํ˜„์ธ dependency injection์•„๋ฆฌ๊ณ  ์ผ๋Š”์ง€๋Š” ์ƒ๊ฐํ•ด ๋ณผ ํ•„์š”๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค.ย 

์˜์กด์„ฑ ์ฃผ์ž…์ด ๊ทธ๋‚˜๋งˆ ์› ๋‹จ์–ด์™€ ์šฉ์–ด์˜ ๊ฐœ๋…์— ์ถฉ์‹คํ•œ ๋ฌด๋‚œํ•œ ๋ฒˆ์—ญ์ด๋ผ๊ณ  ๋ณด์ž…๋‹ˆ๋‹ค.
๋‹ค๋งŒ ๊ฐœ๋…์„ ์ข€ ๋” ๋ช…ํ™•ํ•˜๊ฒŒ ํ•˜๊ธฐ ์œ„ํ•ด์„œ ์˜๋„๋œ ๋‹ค๋ฅธ ๋ฒˆ์—ญ์šฉ์–ด๋ฅผ ์ฐฝ์˜์ ์œผ๋กœ ๋งŒ๋“ค ์ˆ˜๋Š” ์žˆ๋‹ค๊ณ  ๋ด…๋‹ˆ๋‹ค.

2009/6/8 Toby Lee <toby...@gmail.com>

superman

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Jun 7, 2009, 7:37:08โ€ฏPM6/7/09
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DI๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ์ž…์žฅ์—์„œ..
DI๋Š” ๋Œ€๋ถ€๋ถ„..
์ปดํฌ๋„ŒํŠธ ( ํ•จ๊ป˜ ๋™์ž‘ํ•˜๋Š” Package )๋“ค์„ ์—ญ์–ด์ฃผ๋Š” ์—ญํ™œ์„ ํ•˜๋Š”๊ฒƒ ์•„๋‹๊นŒ์š”.?

๊ทธ๋ ‡๋‹ค๋ฉด. ์–ด๋–ค init ๊ณผ์ •.. ์ฆ‰ ์–ด๋–ค setup ๊ณผ์ •์ด๋ผ๊ณ  ๋ณด์•„๋„ ๋˜๋Š”๊ฒƒ ์•„๋‹๊นŒ์š”.?
๊ทธ๋Ÿฐ ์ž…์žฅ์—์„œ ์ ‘๊ทผํ•˜๋ฉด ๋ถ€์†๋ฌผ ์ฃผ์ž… or ๋ถ€์†๋ฌผ ์ค€๋น„ or ๊ด€๋ จ๊ฐ์ฒด ์—ฐ๊ฒฐ or ๊ด€๋ จ instance ์—ฐ๊ฒฐ
๋ญ ์ด์ •๋„๋ผ๊ณ  ์ƒ๊ฐ์ด ๋“ค๊ธฐ๋„ ํ•˜์ง€๋งŒ,

์ด๊ฑด ๋„ˆ๋ฌด application ์‚ฌ์šฉํ•˜๋Š” ์ž…์žฅ์—์„œ๋งŒ ๋ณธ๊ฒƒ ๊ฐ™์•„์„œ..
์ฒ˜์Œ ์„ค๊ณ„์ž์˜ ์˜๋„๋ฅผ ํšŒ์†ํ• ์ˆ˜๋„ ์žˆ๋Š” ์šฉ์–ด๋ผ๋Š” ์ƒ๊ฐ์ด ๋“ค๊ธฐ๋„ ํ•ฉ๋‹ˆ๋‹ค.
๋‹ค๋ฅธ ๋ถ„๋“ค์˜ ์˜๊ฒฌ๋„ ๋“ฃ๊ณ ์‹ถ๊ตฐ์š”...

PS.
๊ณ„์† ์˜ฌ๋ผ์˜ค๋Š”๊ธ€ ๋ณด๊ณ ๋งŒ ์žˆ๋‹ค๊ฐ€..
์ œ ์ƒ๊ฐ์„ ์˜ฌ๋ฆฌ๊ณ  ๊นจ์–ด์ ธ์•ผ ๋ณ€ํ™”๊ฐ€ ์žˆ์„๊ฒƒ ๊ฐ™์•„์„œ์š”.. ^^

On 6์›”8์ผ, ์˜ค์ „7์‹œ43๋ถ„, Toby Lee <tobyi...@gmail.com> wrote:
> Injection์€ ์•ก์ฒด๋ฅ˜๋‚˜ ์•ฝํ’ˆ, ์ถ”์ƒ์ ์ธ ๋‚ด์šฉ์„ ๋„ฃ๋Š”๋‹ค๊ณ  ํ•  ๋•Œ ์‚ฌ์šฉํ•˜์ง€, ์–ด๋–ค ์…€ ์ˆ˜ ์žˆ๋Š” ๋ฌผ์ฒด๋ฅผ์ง‘์–ด๋„ฃ๋Š”๋ฐ ์‚ฌ์šฉํ•˜๋Š” ์šฉ์–ด๊ฐ€


> ์•„๋‹™๋‹ˆ๋‹ค. ๊ทธ๋Ÿฐ๋ฉด์—์„œ ๊ฐ์ฒด๊ฐ€ ์ฃผ์ž…๋˜์—ˆ๋‹ค๋Š” ๋ง์€ ์–ธ์–ด์ ์œผ๋กœ ๋ฐ”๋ฅธ ํ‘œํ˜„์ด ์•„๋‹ˆ์ฃ . ๋ถ€์†๋ฌผ๋„ ๋งˆ์ฐฌ๊ฐ€์ง€ ์ž…๋‹ˆ๋‹ค.
> ๊ฒŒ๋‹ค๊ฐ€ ์ž๋ฐ”์—์„œ๋Š” ๊ฐ์ฒด๊ฐ€ ์–ด๋”” ์ง์ ‘ ๋“ค์–ด๊ฐ€์ง€๋Š” ๊ฒƒ๋„ ์•„๋‹ˆ์ฃ . ๋‹จ์ง€ ๋ ˆํผ๋Ÿฐ์Šค๋งŒ ๋„˜๊ฒจ์ง€๋Š” ๊ฑฐ์ฃ . ๊ฐ์ฒด๋ฅผ ์งœ์„œ ๊ทธ ์ผ๋ถ€๋ฅผ ์ฐ”๋”์ฐ”๋” ๋„ฃ์–ด์ค„๊ฒŒ
> ์•„๋‹ˆ๋ผ๋ฉด ๊ฐ์ฒด ์ฃผ์ž…์ด๋ž€ ํ‘œํ˜„์€ ๋ถ„๋ช… ์ด์ƒํ•ฉ๋‹ˆ๋‹ค. ์™œ ๋” ๊ฐœ๋…์ด ๋ถ„๋ช…ํ•œ dependent object injection์ด ์•„๋‹ˆ๋ผ, ์ถ”์ƒ์ ์ธ
> ํ‘œํ˜„์ธ dependency injection์•„๋ฆฌ๊ณ  ์ผ๋Š”์ง€๋Š” ์ƒ๊ฐํ•ด ๋ณผ ํ•„์š”๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค.
>
> ์˜์กด์„ฑ ์ฃผ์ž…์ด ๊ทธ๋‚˜๋งˆ ์› ๋‹จ์–ด์™€ ์šฉ์–ด์˜ ๊ฐœ๋…์— ์ถฉ์‹คํ•œ ๋ฌด๋‚œํ•œ ๋ฒˆ์—ญ์ด๋ผ๊ณ  ๋ณด์ž…๋‹ˆ๋‹ค.
> ๋‹ค๋งŒ ๊ฐœ๋…์„ ์ข€ ๋” ๋ช…ํ™•ํ•˜๊ฒŒ ํ•˜๊ธฐ ์œ„ํ•ด์„œ ์˜๋„๋œ ๋‹ค๋ฅธ ๋ฒˆ์—ญ์šฉ์–ด๋ฅผ ์ฐฝ์˜์ ์œผ๋กœ ๋งŒ๋“ค ์ˆ˜๋Š” ์žˆ๋‹ค๊ณ  ๋ด…๋‹ˆ๋‹ค.
>

> 2009/6/8 Toby Lee <tobyi...@gmail.com>
>
>
>
> > UML ํ•œ๊ธ€์šฉ์–ด๋ฅผ ๋ณด๋ฉด dependency๋ฅผ ์ข…์†์ด๋ผ๊ณ  ๋งŽ์ด ์“ฐ๋”๊ตฐ์š”.์ข‹์€ ๋ฒˆ์—ญ์šฉ์–ด๋ผ๊ณ  ๋ณด์ด์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ์Šคํ”„๋ง์ด UML๋„ ์•„๋‹ˆ๊ณ ..
>
> > 2009/6/8 ์•ˆ์˜ํšŒ <ahnyoung...@gmail.com>

Gir Won Lee

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Jun 7, 2009, 8:20:58โ€ฏPM6/7/09
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Injection์„ ์ฃผ์ž…๋Œ€์‹  ์‚ฝ์ž…์ด๋ผ๋Š” ๋‹จ์–ด๋ฅผ ์‚ฌ์šฉํ•˜๋ฉด
์ด์ƒํ•ด์งˆ๋ ค๋‚˜์š”???
ย 
ย 
ย 
----
ย 
์‚ฌ์กฑ์œผ๋กœ..
ย 
์ƒ๋ช…๊ณตํ•™(์ œ ์ „๊ณต์ž…๋‹ˆ๋‹ค)์ชฝ์—์„œ๋Š” ์ด๋Ÿฐ ๋‹จ์–ด๊ฐ€ ์žˆ์œผ๋ฉด
์•„์˜ˆ ๋‘˜๋กœ ๋‚˜๋ˆ ์ ธ ๋ฒ„๋ฆฝ๋‹ˆ๋‹ค.
ย 
์ด์œ ๋Š” ์‹ค์ƒํ™œ์—์„œ ๋Œ€ํ™”๋ฅผ ์œ„ํ•œ ๊ฒƒ๊ณผ ์ถœํŒ๋ฐ ํŠนํ—ˆ๋ฅผ ์œ„ํ•ด์„œ ์ž…๋‹ˆ๋‹ค.
ย 
์ƒ๋ช…๊ณตํ•™ ๋ถ„์•ผ์—์„œ ๊ตญ๋‚ด ํŠนํ—ˆ์˜ ๊ฒฝ์šฐ ๋ชจ๋“  ์šฉ์–ด๋“ค์ด ํ•œ๊ธ€ํ™”๊ฐ€ ํ•„์ˆ˜์ ์ด๋ผ์„œ
ํ‰์†Œ์—๋Š” ์˜์–ด๋กœ ๊ทธ๋ƒฅ ์‚ฌ์šฉํ•˜๋‹ค๊ฐ€ ์ถœํŒ ๋ฐ ํŠนํ—ˆ์— ๊ด€๋ จ๋œ ์ž‘์—…์„ ํ•  ๊ฒฝ์šฐ์—๋งŒ
์ด๋Ÿฐ ๋ฌธ์ œ๋ฅผ ๊ณ ๋ฏผํ•˜๊ฒŒ ๋˜์ฃ ..(ํŠนํ—ˆ๋ฐ ์ถœํŒ์ž‘์—…์ด ๋๋‚˜๋ฉด ์›๋ž˜์ƒํƒœ๋กœ~ ^^;;)
๊ทผ๋ฐ ๊ณ ๋ฏผ์„ ํ•˜๊ธด ํ•˜๋Š”๋ฐ..
ย 
์˜๋‹จ์–ด๋ฅผ ๊ฐ๊ฐ ์‚ฌ์ „์  ์˜๋ฏธ์ค‘ ๊ทธ๋‚˜๋งˆ ๋œป์„ ๊ฐ€์žฅ ํ‘œํ˜„ ํ•  ์ˆ˜ ์žˆ๋Š” ๋‹จ์–ด๋“ค์„ ์„ ํƒํ•ด์„œ
๋ง ๊ทธ๋Œ€๋กœ ์กฐ๋ฆฝ์„ ํ•ฉ๋‹ˆ๋‹ค.
-ํ•œ๊ธ€ํ™” ์ž‘์—…์„ ๋๋‚ด๊ณ  ๋ณด๋ฉด ๊ธฐ๊ฐ€ ์ฐฌ ๋‹จ์–ด๋“ค๋„ ๋งŽ์ด ๋‚˜์˜จ๋‹ต๋‹ˆ๋‹ค..
ย 


ย 
2009๋…„ 6์›” 8์ผ (์›”) ์˜ค์ „ 8:37, superman <sup...@gmail.com>๋‹˜์˜ ๋ง:
--
In the midst of the street of it, and on either side of the river, was there the tree of life,
which bare twelve manner of fruits, and yielded her fruit every month: and the leaves of the tree were for the healing of the nations.


Gir won Lee

Dept. of Bioinformatics, Bioneer Corporation
URL: http://www.bioneer.co.kr
http://www.thegreatgoodplace.com
E-mail: leegw700@{bioneer.co.kr|ssu.ac.kr|gmail.com}
Tel: 82-42-930-8755
Phone: 82-10-3323-0868

Toby Lee

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Jun 7, 2009, 8:27:56โ€ฏPM6/7/09
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injection์€ย ์‚ฝ์ž…์œผ๋กœ๋„ ๋ฒˆ์—ญ ๊ฐ€๋Šฅํ•œ ๋‹จ์–ด์ž…๋‹ˆ๋‹ค.
์•ž์— ์˜ค๋Š” ๋‹จ์–ด์™€์˜ ์–ด์šธ๋ฆผ์ด ์ค‘์š”ํ•˜๊ฒ ์ฃ .

2009/6/8 Gir Won Lee <leeg...@gmail.com>

๊ฐ•๋ช…์„ฑ

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Jun 7, 2009, 8:31:49โ€ฏPM6/7/09
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์˜์กด๊ด€๊ณ„๋Š” ์–ด๋–จ๊นŒ์š”~
ย 
์‚ฝ์ž…์ด๋ž€ ์˜๋ฏธ๋„ ์ข‹์€ ์˜๋ฏธ๋„ค์š”.

2009๋…„ 6์›” 8์ผ (์›”) ์˜ค์ „ 9:27, Toby Lee <toby...@gmail.com>๋‹˜์˜ ๋ง:


--
๋งค์ผ ํ–‰๋ณตํ•œ ์‹œ๊ฐ„ ๋˜์‹œ๊ธธ ๋ฐ”๋ž๋‹ˆ๋‹ค...^^

์•ˆ์˜ํšŒ

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Jun 7, 2009, 9:02:54โ€ฏPM6/7/09
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๋‹ค์Œ์€ without EJB์— ๋‚˜์˜ค๋Š” ๋‚ด์šฉ์ž…๋‹ˆ๋‹ค.

Dependency Injection: Components do no look up; they provide plain Java methods enabling
the container to resolve dependencies. The container is wholly responsible for wiring up components,
passing resolved objects in to JavaBean properties or constructors. Use of JavaBean
properties is called Setter Injection; use of constructor arguments is called Constructor Injection.

์ปจํ…Œ์ด๋„ˆ๊ฐ€ ์ฐธ์กฐ ๊ฐ์ฒด๋ฅผ ์ฐพ์•„์ฃผ๊ณ (resolve dependencies), ์ปดํฌ๋„ŒํŠธ๋ฅผ ์—ฎ์–ด์ฃผ๊ณ (wiring up components), JavaBeans ํ”„๋กœํผํ‹ฐ๋‚˜ ์ƒ์„ฑ์ž๋ฅผ ํ†ตํ•ด์„œ ์ฐพ์•„๋‚ธ ๊ฐ์ฒด์— ๋Œ€ํ•œ ์ฐธ์กฐ๋ฅผ ์ „ํ•ด์ฃผ๋Š” ์ผ์„ ํ†ต์นญํ•˜์ฃ .

๋Œ€๋žต ํ’€์–ด๋†“๊ณ  ๋ณด๋ฉด ์˜์กด์„ฑ ์ฃผ์ž…์ด๋‚˜ ์˜์กด ๊ฐ์ฒด ์ฃผ์ž… ๋ชจ๋‘ ์ ์ ˆํ•˜๋„ค์š”.

์ผ์žฅ์ผ๋‹จ์ด ์žˆ๋‹ค ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค.
์˜์กด์„ฑ์ด๋ž€ ํ‘œํ˜„์ด ๊ฒฐ๊ตญ์€ ๊ฐ์ฒด๋ฅผ ํ‘œํ˜„ํ• ํ…Œ๋‹ˆ๊นŒ์š”.
์˜์กด๊ฐ์ฒด๋ผ ์จ์„œ ๋ณด๋‹ค ์˜๋ฏธ๋ฅผ ๋ถ„๋ช…ํžˆ ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

๋ฐ˜๋ฉด, dependency๊ฐ€ ๊ผญ ๊ฐ์ฒด๋Š” ์•„๋‹ˆ๋ผ ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
๊ฐ€๋ น primitive data๋ฅผ ๋„ฃ์–ด์ค„ ์ˆ˜๋„ ์žˆ์ฃ .

๋‘˜ ๋‹ค ๋Œ€๋‹จํ•œ ์ด์ ์€ ์•„๋‹ˆ๋ผ ์„ ๋œป ์šฐ์—ด์„ ๊ฐ€๋ฆฌ๊ธฐ ํž˜๋“ญ๋‹ˆ๋‹ค.
์˜๋ฏธ์ƒ์œผ๋ก  IoC ์ „๋žต์„ ์ผํ™˜์ด๊ธฐ ๋•Œ๋ฌธ์— "์ฃผ์ž…์„ ํ†ตํ•œ IoC"๊ฐ€ ๋งˆ์Œ์— ๋“ค์ง€๋งŒ ์›์–ด์™€ ๊ดด๋ฆฌ๊ฐ์ด ํฌ๋„ค์š”.

ํ•œํŽธ, dic.naver๋ฅผ ๋ณด๋‹ˆ injection์— ๋Œ€ํ•œ ์šฐ๋ฆฌ๋ง๋กœ๋Š” ์‚ฝ์ž…๋ณด๋‹ค ์ฃผ์ž…์ด ์ข‹์„ ๋“ฏ ํ•ฉ๋‹ˆ๋‹ค.

์ฃผ์ž… [ๆณจๅ…ฅ]

<๊ต์œก>๊ธฐ์–ต๊ณผ ์•”๊ธฐ๋ฅผ ์ฃผ๋กœ ํ•˜์—ฌ ์ง€์‹์„ ๋„ฃ์–ด ์คŒ.



Gir Won Lee

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Jun 7, 2009, 9:14:20โ€ฏPM6/7/09
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ย 
--
์ปจํ…Œ์ด๋„ˆ๊ฐ€ ์ฐธ์กฐ ๊ฐ์ฒด๋ฅผ ์ฐพ์•„์ฃผ๊ณ (resolve dependencies), ์ปดํฌ๋„ŒํŠธ๋ฅผ ์—ฎ์–ด์ฃผ๊ณ (wiring up components), JavaBeans ํ”„๋กœํผํ‹ฐ๋‚˜ ์ƒ์„ฑ์ž๋ฅผ ํ†ตํ•ด์„œ ์ฐพ์•„๋‚ธ ๊ฐ์ฒด์— ๋Œ€ํ•œ ์ฐธ์กฐ๋ฅผ ์ „ํ•ด์ฃผ๋Š” ์ผ์„ ํ†ต์นญํ•˜์ฃ .
--
ย 
DI๋ผ๋Š” ๋‹จ์–ด์— ๋Œ€ํ•ด์„œ ์–ฝ๋งค์ด์ง€ ์•Š๋Š”๋‹ค๋ฉด
์˜์กด์„ฑ ์ฐธ์กฐ๋ผ๋Š” ๋ง์€ ์–ด๋– ํ•œ๊ฐ€์š”??


ย 
2009๋…„ 6์›” 8์ผ (์›”) ์˜ค์ „ 10:02, ์•ˆ์˜ํšŒ <ahnyo...@gmail.com>๋‹˜์˜ ๋ง:

์œคํฌํ•œ

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Jun 7, 2009, 9:25:16โ€ฏPM6/7/09
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์Œ๋ƒ.. ์ œ๊ฐ€ ์ƒ๊ฐ์ด ๋ถ€์กฑํ•œ๊ฑด์ง€...

์ €๋Š” ์ฒจ์— ์˜์กด์„ฑ ์ฃผ์ž…์ด๋ผ๋Š” ๋‹จ์–ด๋ฅผ ๋“ฃ๊ณ  ๊ทธ๋ƒฅ ๋ฐ›์•„๋“ค์—ฌ ๋ฒ„๋ ค์„œ........

๋ฒˆ์—ญํ•˜์‹œ๋Š” ๋ถ„๋“ค์ด ๊ดœํžˆ ์˜์กด์„ฑ ์ฃผ์ž…์ด๋ผ๋Š” ๋ง์„ ์“ฐ์…ง์„๊นŒ ํ•˜๋Š” ์ƒ๊ฐ์„ํ•˜๋ฉฐ

๊ทธ๋ƒฅ๊ทธ๋ƒฅ ๋ฐ›์•„๋“ค์ด๋‹ค๋ณด๋‹ˆ ใ…Ž

์ด์ œ๋ถ€ํ„ฐ ๊ทธ๋Ÿฐ๊ฒƒ๋“ค๋„ ํ•œ๋ฒˆ์ฏค ์ƒ๊ฐ์„ ํ•ด๋ด์•ผ ํ• ๋“ฏํ•˜๋„ค์š”..

์–ธ์ œ๋‚˜ ์ฆ๊ฑฐ์šด ์ƒ๊ฐ๊ฑฐ๋ฆฌ๋ฅผ ์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค.

์œ ์ €๊ทธ๋ฃน ์—ฌ๋Ÿฌ๋ถ„ ^^

์•ˆ์˜ํšŒ

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Jun 7, 2009, 9:29:11โ€ฏPM6/7/09
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DI๋ผ๋Š” ๋‹จ์–ด์— ๋Œ€ํ•ด์„œ ์–ฝ๋งค์ด์ง€ ์•Š๋Š”๋‹ค๋ฉด
์˜์กด์„ฑ ์ฐธ์กฐ๋ผ๋Š” ๋ง์€ ์–ด๋– ํ•œ๊ฐ€์š”??

์˜์กด์„ฑ ์ฐธ์กฐ์š”?
DI๋Š” IoC ์ „๋žต์˜ ์ผํ™˜์ž…๋‹ˆ๋‹ค.
'์ฐธ์กฐ'๋ผ ๋ณด๊ธด ์–ด๋ ต๊ณ , '์ฐธ์กฐํ•˜๋Š” ๊ฐ์ฒด๋ฅผ ์ฐพ๊ณ , ํ•ด๋‹น ๊ฐ์ฒด์— ๋Œ€ํ•œ ์ฐธ์กฐ ๊ฐ’์„ ๋ณต์‚ฌํ•ด์ฃผ๋Š” ๋ฐฉ๋ฒ•'์ด์ฃ 

Sanghyuk Jung

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Jun 7, 2009, 9:29:31โ€ฏPM6/7/09
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์ฐธ ๋ฒˆ์—ญ์ด๋ผ๋Š”๊ฒŒ ์–ด๋ ค์šด๊ฒƒ ๊ฐ™์•„์š”; ์šฐ๋ฆฌ๋ง ์‹ค๋ ฅ๋„ ์žˆ์–ด์•ผํ•˜๊ณ ;
ย 
๊ทธ๋Ÿผ์—๋„ ๋น„ํŒ์ด ์˜ฌ ๊ฒƒ์„ ๊ฐ์ˆ˜ํ•˜์‹œ๋ฉด์„œ๋„ ๋ฒˆ์—ญ์„ ์‹œ๋„ํ•˜์‹œ๋Š” ๋ถ„๋“ค์ด ์ •๋ง ๋Œ€๋‹จํ•˜๊ณ  ์กด๊ฒฝ์Šค๋Ÿฝ์Šต๋‹ˆ๋‹ค.

2009๋…„ 6์›” 8์ผ (์›”) ์˜ค์ „ 10:25, ์œคํฌํ•œ <ryys...@gmail.com>๋‹˜์˜ ๋ง:

Toby Lee

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Jun 7, 2009, 9:31:51โ€ฏPM6/7/09
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์ด ์ธ์šฉ๋ฌธ์žฅ์—์„œย resolve dependencies ๋Š” ๊ฐ์ฒด๋ฅผ ์ฐพ๋Š” ๋‹ค๋Š” ๋ง์ดย ์•„๋‹™๋‹ˆ๋‹ค.ย ๋’ค์˜ ๋ฌธ์žฅ๋“ค์—ย ๋‚˜์˜ค๋Š” ๋ชจ๋“  ์ž‘์—…์„ ํ†ตํ‹€์–ด์„œ ํ•˜๋Š” ๋ง์ž…๋‹ˆ๋‹ค.ย 


2009/6/8 ์•ˆ์˜ํšŒ <ahnyo...@gmail.com>

Toby Lee

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Jun 7, 2009, 9:35:08โ€ฏPM6/7/09
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์‚ฌ์‹ค ์ง€๊ธˆ๊นŒ์ง€ ๋‚˜์˜จ ์–ด๋–ค ์šฉ์–ด๋ฅผ ์จ๋„ ๋ณ„ ๋ฌธ์ œ๋Š” ์—†๋‹ค๊ณ  ๋ด…๋‹ˆ๋‹ค.
๊ฒฐ๊ตญย ๋งŽ์ด ์“ฐ์ด๋Š”๊ฒŒ ๋‚จ๋Š” ๊ฑฐ์ฃ .


2009/6/8 Toby Lee <toby...@gmail.com>

๋ฐ•์„ฑ์ฒ 

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Jun 7, 2009, 9:37:54โ€ฏPM6/7/09
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์™€์šฐ. ์ด๊ฑฐ ์ข‹์€ ์˜๊ฒฌ์„ ๋งŽ์ด ๋‹ฌ๋ผ์ฃผ์…จ๋„ค์š”.
์ผ๋‹จ ์ค‘๊ฐ„์— ํ•œ๋ฒˆ ์ •๋ฆฌํ•ด๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค.

DENPENDENCY

1. ์˜์กด์„ฑ :
* ์šฐ๋ฆฌ๋ง๋กœ ์–ด์ƒ‰ํ•˜๋‹ค.
* ์› ๋œป์„ ๋ฌด๋ฆฌ ์—†์ด ํ‘œํ˜„ํ•œ๋‹ค.
* ์ด๋ฏธ ๋งŽ์ด ์“ฐ์ธ๋‹ค.

2. ๋ถ€์†๋ฌผ
* ์–ด๊ฐ์ด ์ข‹๋‹ค.
* Injection์ด ์ถ”์ƒ์ ์ธ ๊ฒƒ๊ณผ ๊ฐ™์ด ์“ฐ์ด๋Š” ๋‹จ์–ด์ด๋ฏ€๋กœ ์–ด์šธ๋ฆฌ์ง€ ์•Š๋Š”๋‹ค.
* ์„ค๊ณ„ ์˜๋„๋ฅผ ํ›ผ์†

3. ์˜์กด ๊ด€๊ณ„
* ๊ด€๊ณ„๋ฅผ ์ฃผ์ž…ํ•œ๋‹ค๋Š” ๊ฑด ์ข€...
* ์ข‹์€ ๊ฒƒ ๊ฐ™๋‹ค.

INJECTION

1. ์ฃผ์ž…
* ๋ถ€์ •์ ์ธ ์˜๊ฒฌ ์—†์Œ.

2. ์‚ฝ์ž…
* Injection์„ ์‚ฝ์ž…์œผ๋กœ ํ•ด์„ํ•ด๋„ ๋ฌด๋ฆฌ ์—†๋‹ค.
* ์ข‹์€ ์˜๊ฒฌ์ด๋‹ค.


์ œ ์ƒ๊ฐ์— dependency๊ฐ€ ๋ฌด์—‡์„ ๋œปํ•˜๋Š” ์ง€ ํŒŒ์•…ํ•˜๋Š” ๊ฒƒ์ด ์ข‹์„ ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.
๋ณดํ†ต y๋กœ ๋๋‚˜๋ฉด ์–ด๋–ค '์„ฑ์งˆ'์ด๋‚˜ 'ํŠน์„ฑ' ๋˜๋Š” ๊ทธ ํŠน์„ฑ์„ ๋„๋Š” ๊ฒƒ์„ ์˜๋ฏธํ•˜๋Š”๋ฐ์š”.

ํฌ๊ฒŒ ๋‘๊ฐ€์ง€๋กœ ์ƒ๊ฐํ•ด๋ณผ ์ˆ˜ ์žˆ์„ ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.

์šฐ์„ ์€ injection์„ ๋ฐ›๋Š” ๋นˆ์— ์–ด๋–ค ์˜์กดํ•˜๋Š” ํŠน์„ฑ์„ ๋ถ€์—ฌํ•œ๋‹ค๋Š” ์˜๋ฏธ๋กœ ๋ณผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์˜ˆ๋ฅผ ๋“ค์–ด A ๊ฐ์ฒด๊ฐ€ B ๊ฐ์ฒด์—
์ข…์†๋˜์–ด B ๊ฐ์ฒด์˜ ๋ ˆํผ๋Ÿฐ์Šค๋ฅผ setting ํ•˜๋Š” ์ƒํ™ฉ์„ ๋ณผ ๋•Œ 'A์— ๋ถ€์—ฌ๋˜๋Š” ํŠน์„ฑ'์„ ์ง€์นญํ•˜๋Š” ๊ฒƒ์ด์ฃ .

๋‘๋ฒˆ์งธ๋Š” injection ๋˜๋Š” ์–ด๋–ค ๊ฒƒ์„ ๊ฐ€๋ฆฌํ‚ค๋Š” ์šฉ์–ด๋กœ dependency๊ฐ€ ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด ๊ฒฝ์šฐ๋Š” A์— setting
๋˜๋Š” B์˜ ๋ ˆํผ๋Ÿฐ์Šค๋ฅผ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค.

๋‘๋ฒˆ์งธ๋„ ์˜๋ฏธ๋„ ๋‘ ๊ฐ€์ง€๋กœ ๋‚˜๋‰˜๋Š”๋ฐ์š”. injection ๋˜๋Š” ๊ฒƒ์ด ๊ฐœ๋…์ ์ธ ์ˆ˜์ค€์˜ ๊ฒƒ์ด๋ƒ (์˜์กด์„ฑ, ์˜์กด ๊ด€๊ณ„) ์•„๋‹ˆ๋ฉด ๊ตฌ์ฒด์ 
์ธ ๊ฒƒ์ด๋ƒ (์˜ˆ๋ฅผ ๋“ค๋ฉด ๋ถ€์†๋ฌผ, ๊ฐ์ฒด) ...


์ €๋Š” ์–ด๋–ค ํŠน์งˆ์„ ๋ถ€์—ฌํ•œ๋‹ค๋Š” ๊ฒƒ์ด ๋งž๋‹ค๋ฉด "์˜์กด ํŠน์„ฑ ์ฃผ์ž…" ์ •๋„๊ฐ€ ์ข‹์„ ๊ฒƒ ๊ฐ™๊ณ  ํ›„์ž์˜ ๊ฐœ๋…์ ์ธ ์ˆ˜์ค€์˜ ํ‘œํ˜„์ด๋ผ๋ฉด "์˜์กด ๊ด€
๊ณ„ ์ฃผ์ž…"์ด ์ข‹์„ ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค. ๋ฌผ๋ก  ๊ฐ•ํ•œ ์ฃผ์žฅ์ด ์•„๋‹ˆ๋ผ ๊ทธ๋ ‡๊ฒŒ ์„ ํ˜ธํ•œ๋‹ค๋Š” ์˜๋ฏธ์—์„œ... ^^

๊ทธ๋ฆฌ๊ณ  Injection์„ ์‚ฝ์ž…์œผ๋กœ๋„ ๋ณผ ์ˆ˜ ์žˆ๋‹ค๋Š” ์˜๊ฒฌ๋„ ๋‚˜์™”๋Š”๋ฐ ์‚ฝ์ž…์˜ ์šฐ๋ฆฌ๋ง ์ด๋ฏธ์ง€๋ž‘์€ ์ž˜ ์•ˆ ๋งž๋Š” ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค. ๊ฐœ์ธ์ ์œผ
๋กœ ์‚ฝ์ž…์€ AOP์˜ Introduction์˜ ์šฐ๋ฆฌ๋ง ํ‘œํ˜„์— ์–ด์šธ๋ฆฌ์ง€ ์•Š๋‚˜ ์‹ถ๋„ค์š”. ์–ด๋–ค ๊ฐ์ฒด(target)์˜ ๊ฒฐํ•ฉ ๊ฐ€๋Šฅํ•œ ์ง€์ 
(joinpoint)๋“ค ์ค‘ ํŠน์ • ์ง€์ ์„ ์ž˜๋ผ์„œ (pointcut) ๋ฉค๋ฒ„ ๋ณ€์ˆ˜๋‚˜ ๋ฉ”์„œ๋“œ๋ฅผ ์Šฌ๊ทธ๋จธ๋‹ˆ ์ง‘์–ด ๋„ฃ๋Š”
(introduction) ๊ฒƒ์ด๋‹ˆ ๋ง์ด์ฃ .

sungchul park

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Jun 7, 2009, 9:39:37โ€ฏPM6/7/09
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์–ด๋จธ๋‚˜ ๊ธ€ ์“ฐ๋Š” ์‚ฌ์ด์— ๋˜ ์ฃผ๋ฅด๋ฅต... ์ •๋ฆฌ๊ฐ€ ์˜๋ฏธ ์—†์–ด์กŒ...;;;

2009๋…„ 6์›” 8์ผ (์›”) ์˜ค์ „ 10:37, ๋ฐ•์„ฑ์ฒ  <gyu...@gmail.com>๋‹˜์˜ ๋ง:

Toby Lee

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Jun 7, 2009, 9:43:27โ€ฏPM6/7/09
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(joinpoint)๋“ค ์ค‘ ํŠน์ • ์ง€์ ์„ ์ž˜๋ผ์„œ (pointcut) ๋ฉค๋ฒ„ ๋ณ€์ˆ˜๋‚˜ ๋ฉ”์„œ๋“œ๋ฅผ ์Šฌ๊ทธ๋จธ๋‹ˆ ์ง‘์–ด ๋„ฃ๋Š”
(introduction) ๊ฒƒ์ด๋‹ˆย 
Introduction์—๋Š” join point,ย pointcut์ด๋ผ๋Š”ย ๊ฐœ๋…์ด ์—†์Šต๋‹ˆ๋‹ค. ๊ทธ๊ฑด weaving์ด์ฃ .

2009/6/8 ๋ฐ•์„ฑ์ฒ  <gyu...@gmail.com>

Gir Won Lee

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Jun 7, 2009, 9:43:46โ€ฏPM6/7/09
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ใ…Žใ…Žใ…Žใ…Ž
์ผ๋‹จ ๋งŽ์ด ์‚ฌ์šฉํ•˜๊ณ , ์‚ฌ์šฉํ•˜๊ณ  ์žˆ๋Š” ๊ฒƒ์ด ์ตœ๊ณ ,
ย 
ํ˜น ์ผ๋ณธ์—์„œ ํ™œ๋™ํ•˜์‹œ๋Š” ๋ถ„๋“ค์˜ ์˜๊ฒฌ์ด ๊ถ๊ธˆํ•ฉ๋‹ˆ๋‹ค.
ย 
์šฐ๋ฆฌ๋‚˜๋ผ๋ณด๋‹ค ์ฑ… ๋ฒˆ์—ญ์— ๋Œ€ํ•ด์„œ๋Š” ์ผ๋ณธ์ด ๋งŽ์ด ์•ž์„œ ์žˆ๋‹ค๊ณ  ๋“ค์—ˆ๋Š”๋ฐ
ํ˜น DI๋ฅผ ์ผ์–ด๋กœ ์–ด๋–ป๊ฒŒ ๋ฒˆ์—ญํ•˜๊ณ  ์žˆ๋Š”์ง€ ๊ถ๊ธˆํ•ด์ง€๋„ค์š”.. ^^
ย 


ย 
2009๋…„ 6์›” 8์ผ (์›”) ์˜ค์ „ 10:39, sungchul park <gyu...@gmail.com>๋‹˜์˜ ๋ง:

์•ˆ์˜ํšŒ

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Jun 7, 2009, 9:49:11โ€ฏPM6/7/09
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์ €๋Š” ์–ด๋–ค ํŠน์งˆ์„ ๋ถ€์—ฌํ•œ๋‹ค๋Š” ๊ฒƒ์ด ๋งž๋‹ค๋ฉด "์˜์กด ํŠน์„ฑ ์ฃผ์ž…" ์ •๋„๊ฐ€ ์ข‹์„ ๊ฒƒ ๊ฐ™๊ณ  ํ›„์ž์˜ ๊ฐœ๋…์ ์ธ ์ˆ˜์ค€์˜ ํ‘œํ˜„์ด๋ผ๋ฉด "์˜์กด ๊ด€
๊ณ„ ์ฃผ์ž…"์ด ์ข‹์„ ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.


๋งฅ๋น ์ง€๊ฒŒ ํ•˜๋Š” ์˜๊ฒฌ ๊ฐ™์•„ ์ž ์‹œ ์ฃผ์ €ํ–ˆ์ง€๋งŒ... :)

์˜์กด ํŠน์„ฑ์€ ์˜์กด์„ฑ์— ๋น„ํ•ด ๊ณต๊ฐ„๋งŒ ๋‚ญ๋น„ํ•  ๋ฟ ์˜๋ฏธ ๋ถ€์—ฌ๊ฐ€ ์—†๋‹ค ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค.
์˜์กด ๊ด€๊ณ„ ์ฃผ์ž…์€ ์•ž์„œ ์„ค๋ช…ํ–ˆ์ง€๋งŒ, '๊ด€๊ณ„'์ž์ฒด๋ฅผ ์ฃผ์ž…ํ•œ๋‹ค๊ณ  ๋ณด๊ธฐ๋Š” ์–ด๋ ค์šธ ๋“ฏ ํ•ฉ๋‹ˆ๋‹ค.

์˜์กด์„ฑ ์ฃผ์ž…๊ณผ ์กฑ์†ก ๊ฐ์ฒด ์ฃผ์ž…์— ๋น„ํ•ด ๋‘˜ ๋‹ค ๋šœ๋ ทํ•œ ์ด์ ์€ ์—†๋‹ค๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค.

๋ฐ•์„ฑ์ฒ 

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Jun 7, 2009, 9:56:43โ€ฏPM6/7/09
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์ด๋Ÿฐ... ๊ทธ๋ ‡๋„ค์š”. join point๊ฐ€ ์žˆ์„ ํ•„์š”๊ฐ€...;;;

Toby Lee

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Jun 7, 2009, 10:02:36โ€ฏPM6/7/09
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์˜์กด ๊ด€๊ณ„ ์ฃผ์ž…์€ ์•ž์„œ ์„ค๋ช…ํ–ˆ์ง€๋งŒ, '๊ด€๊ณ„'์ž์ฒด๋ฅผ ์ฃผ์ž…ํ•œ๋‹ค๊ณ  ๋ณด๊ธฐ๋Š” ์–ด๋ ค์šธ ๋“ฏ ํ•ฉ๋‹ˆ๋‹ค

๊ทธ๋Ÿฐ์‹์œผ๋กœ ๋ณด์ž๋ฉดย ๊ด€๊ณ„๋Š” ๋งบ์–ด์ง€๋Š” ๊ฒƒ์ด๊ณ  ๊ฐ์ฒด๋Š” (๋ ˆํผ๋Ÿฐ์Šค๊ฐ€) ์ „๋‹ฌ๋˜๋Š” ๊ฒƒ์ด์ง€ ๋‘˜๋‹ค ์ฃผ์ž…๋˜๋Š” ๊ฒƒ์€ ์•„๋‹™๋‹ˆ๋‹ค.ย 

์ฃผ์ž…์ด๋ผ๋Š” ๊ฒƒ์€ ์ผ๋‹จ ๋“ค์–ด๊ฐ€์„œ ์ผ๋ถ€๋ถ„์ด ๋˜๊ฑฐ๋‚˜ ๋‚จ์•„์žˆ๋‹ค๋Š” ๋‰˜์•™์Šค๊ฐ€ ๊ฐ•ํ•ฉ๋‹ˆ๋‹ค. ๊ฐ์ฒด๊ฐ€ ์—ฌ๊ธฐ ์ €๊ธฐ์— clone๋˜์„œ ๋„˜์–ด๊ฐ€๋Š” ๊ฒƒ๋„ ์•„๋‹ˆ๊ณ , ๋“ค์–ด๊ฐ€ ์žˆ๋Š” ๋‹ค๋Š” ๊ฒƒ๋„ ์ด์ƒํ•˜์ฃ . ์˜คํžˆ๋ ค ์˜์กด๊ด€๊ณ„๋Š” ํ•œ๋ฒˆ ์„ค์ •๋˜๋ฉด ๊ทธ ์ž์ฒด๋กœ ๋‚จ์•„์žˆ์ฃ . ๋‹ค๋งŒ ๋ฒˆ์—ญํ–ˆ์„ ๊ฒฝ์šฐย injection๋ผ๋Š” ๋ง๊ณผ ์ž˜ ์•ˆ์–ด์šธ๋ฆด ๋ฟ์ด์ฃ .ย ๊ทธ๊ฑดย ๊ฐ์ฒด ์ฃผ์ž…๋„ ๋งˆ์ฐฌ๊ฐ€์ง€ ์ž…๋‹ˆ๋‹ค. ์–ด๋””์„œ๋„ ๊ฐ์ฒด๋ฅผ ์ฃผ์ž…ํ•œ๋‹ค๋Š” ํ‘œํ˜„์„ ๋“ค์–ด๋ณธ ์ ์ด ์—†์Šต๋‹ˆ๋‹ค.

2009/6/8 ์•ˆ์˜ํšŒ <ahnyo...@gmail.com>

๋ฐ•์„ฑ์ฒ 

unread,
Jun 7, 2009, 10:13:28โ€ฏPM6/7/09
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> ๋งฅ๋น ์ง€๊ฒŒ ํ•˜๋Š” ์˜๊ฒฌ ๊ฐ™์•„ ์ž ์‹œ ์ฃผ์ €ํ–ˆ์ง€๋งŒ... :)

๋ณ„๋กœ ๋งฅ ๋น ์ง€์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ใ…Žใ…Ž
์ €๋„ ๋‚˜๋ฆ„ ๋‘˜์งธ๊ฐ€๋ผ ํ•˜๋ฉด ์„œ๋Ÿฌ์›Œ ํ•  ๋ƒ‰ํ˜ˆํ•œ... -_-);

> *์˜์กด ํŠน์„ฑ*์€ *์˜์กด์„ฑ*์— ๋น„ํ•ด ๊ณต๊ฐ„๋งŒ ๋‚ญ๋น„ํ•  ๋ฟ ์˜๋ฏธ ๋ถ€์—ฌ๊ฐ€ ์—†๋‹ค ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค.

์ œ๊ฐ€ ๋ถ„๋ช…ํžˆ ํ•˜๊ณ  ์‹ถ์—ˆ๋˜ ๊ฒƒ์€ dependency๊ฐ€ ๊ฐ์ฒด A์˜ ์ƒˆ๋กœ ๋ถ€์—ฌ๋˜๋Š” ํŠน์„ฑ์„ ์˜๋ฏธํ•˜๋Š”์ง€ ์•„๋‹ˆ๋ฉด A์— ๋ถ€์—ฌ๋˜๋Š” ์™ธ๋ถ€์˜ ์–ด
๋–ค ๊ฒƒ์„ ์˜๋ฏธํ•˜๋Š”์ง€ ์˜€์Šต๋‹ˆ๋‹ค. ๋ ˆํผ๋Ÿฐ์Šค๋‚˜ ์œ„์— ์ธ์šฉํ•˜์‹  ๊ธ€์„ ๋ณด๋ฉด ํ›„์ž๋ผ๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค.

๊ทธ๋Ÿฐ๋ฐ ์šฐ๋ฆฌ๋ง์˜ '์˜์กด์„ฑ'์ด๋ผ๋Š” ๋‹จ์–ด๊ฐ€ ๋œปํ•˜๋Š” ๊ฒƒ์€ ๋Œ€์ถฉ ์ด๋ ‡๋‹ค๋„ค์š”.

1 ๋‹ค๋ฅธ ๊ฒƒ์— ์˜์ง€ํ•˜์—ฌ ์ƒํ™œํ•˜๊ฑฐ๋‚˜ ์กด์žฌํ•˜๋Š” ์„ฑ์งˆ.
* ๊ณผ๋ณดํ˜ธ๋ฅผ ๋ฐ›๊ณ  ์ž๋ž€ ์•„์ด๋Š” ๋ถ€๋ชจ์— ๋Œ€ํ•œ ์˜์กด์„ฑ์ด ๊ฐ•ํ•˜๋‹ค.
2 [์•ฝํ•™]๊ธˆ๋‹จ ์ฆ์ƒ ๋•Œ๋ฌธ์— ๊ณ„์†ํ•˜์—ฌ ์•ฝ๋ฌผ์„ ์„ญ์ทจํ•˜์ง€ ์•Š์œผ๋ฉด ์•ˆ ๋˜๋Š” ์ƒํƒœ.

๊ฒฐ๊ตญ ์œ„์— ๊ตฌ๋ถ„์—์„œ ์ „์ž์— ํ•ด๋‹นํ•ฉ๋‹ˆ๋‹ค.

"๊ฐ์ฒด A๊ฐ€ ๊ฐ์ฒด B์— ์˜์กด์„ฑ์ด ์žˆ๋‹ค"๋Š” ๋ง์€ ์„ฑ๋ฆฝ๋˜์ง€๋งŒ
"๊ฐ์ฒด B๋Š” ๊ฐ์ฒด A์˜ ์˜์กด์„ฑ์ด๋‹ค"๋Š” ๋ง์€ ์ž˜๋ชป๋œ ํ‘œํ˜„์ด๋ผ๋Š” ๊ฑฐ์ฃ .

๋ง์ด๋ž€ ๊ณ„์† ๋ณ€ํ™”ํ•˜๋Š” ๊ฒƒ์ด๋‹ˆ ์ƒˆ๋กญ๊ฒŒ ์ •์˜ํ•˜๊ณ  ์‚ฌ์šฉํ•œ๋‹ค๋ฉด ๋ฌธ์ œ๊ฐ€ ์—†๊ฒ ์ง€๋งŒ Spring In Action 2nd ๋ฒˆ์—ญํ•˜๋ฉด์„œ ๋ณ€ํ™”๋ฅผ
์‹œ๋„ํ–ˆ๋‹ค๋ฉด ์ง€๊ธˆ ๋‹ค์‹œ ์ด์Šˆํ™”ํ•˜๋Š” ๊ฒƒ๋„ ๋ฌธ์ œ๊ฐ€ ์•„๋‹ ๊ฑฐ๋ผ๊ณ  ์—ฌ๊ฒจ์ ธ์„œ ์ด๋ ‡๊ฒŒ ํ™”๋‘๋ฅผ ๋˜์กŒ์Šต๋‹ˆ๋‹ค.

๊ทธ๋ฆฌ๊ณ  ์ œ๊ฐ€ ๋ณด๊ธฐ์— ์˜์กด ๊ด€๊ณ„ ์ฃผ์ž…๋„ ์•„๊นŒ ์ผ๋ฏผ๋‹˜์ด Injection๊ณผ ๊ฐ™์ด ์“ฐ๋Š” ๊ฒƒ์ด ๊ฐœ๋…์ ์ธ ๊ฒƒ์ด๋ผ๊ณ  ํ•˜์‹  ๊ฒƒ์„ ์ƒ๊ฐํ•˜๋ฉด ๋ง
์ด ๋˜์ง€ ์•Š๋‚˜ ์‹ถ์–ด์š”. ์ •ํ™•ํžˆ ํ‘œํ˜„ํ•œ๋‹ค๋ฉด ์˜์กด ๊ด€๊ณ„์„ฑ ์ฃผ์ž…์ด ๋˜๋Š” ๊ฑฐ์ฃ .

On 6์›”8์ผ, ์˜ค์ „10์‹œ49๋ถ„, ์•ˆ์˜ํšŒ <ahnyoung...@gmail.com> wrote:
> > ์ €๋Š” ์–ด๋–ค ํŠน์งˆ์„ ๋ถ€์—ฌํ•œ๋‹ค๋Š” ๊ฒƒ์ด ๋งž๋‹ค๋ฉด "์˜์กด ํŠน์„ฑ ์ฃผ์ž…" ์ •๋„๊ฐ€ ์ข‹์„ ๊ฒƒ ๊ฐ™๊ณ  ํ›„์ž์˜ ๊ฐœ๋…์ ์ธ ์ˆ˜์ค€์˜ ํ‘œํ˜„์ด๋ผ๋ฉด "์˜์กด ๊ด€
> > ๊ณ„ ์ฃผ์ž…"์ด ์ข‹์„ ๊ฒƒ ๊ฐ™์Šต๋‹ˆ๋‹ค.
>
> ๋งฅ๋น ์ง€๊ฒŒ ํ•˜๋Š” ์˜๊ฒฌ ๊ฐ™์•„ ์ž ์‹œ ์ฃผ์ €ํ–ˆ์ง€๋งŒ... :)
>

> *์˜์กด ํŠน์„ฑ*์€ *์˜์กด์„ฑ*์— ๋น„ํ•ด ๊ณต๊ฐ„๋งŒ ๋‚ญ๋น„ํ•  ๋ฟ ์˜๋ฏธ ๋ถ€์—ฌ๊ฐ€ ์—†๋‹ค ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค.


> ์˜์กด ๊ด€๊ณ„ ์ฃผ์ž…์€ ์•ž์„œ ์„ค๋ช…ํ–ˆ์ง€๋งŒ, '๊ด€๊ณ„'์ž์ฒด๋ฅผ ์ฃผ์ž…ํ•œ๋‹ค๊ณ  ๋ณด๊ธฐ๋Š” ์–ด๋ ค์šธ ๋“ฏ ํ•ฉ๋‹ˆ๋‹ค.
>

> *์˜์กด์„ฑ ์ฃผ์ž…*๊ณผ *์กฑ์†ก ๊ฐ์ฒด ์ฃผ์ž…*์— ๋น„ํ•ด ๋‘˜ ๋‹ค ๋šœ๋ ทํ•œ ์ด์ ์€ ์—†๋‹ค๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค.

Toby Lee

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Jun 7, 2009, 10:16:17โ€ฏPM6/7/09
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๊ฐ์žย ์ž…๋ง›์— ๋งž๊ฒŒ ์“ฐ์ฃ . :)
๊ทธ๋ž˜์„œย ์ฑ… ํ˜ผ์ž ์“ฐ๋Š”๊ฒŒ ํŽธํ•˜๊ตฐ์š”.
๊ณต๋™ ๋ฒˆ์—ญํ•˜๋Š” ๋ถ„๋“ค์€ ์ซŒ ํ”ผ๊ณคํ•˜๊ฒ ์–ด์š”.


2009/6/8 ๋ฐ•์„ฑ์ฒ  <gyu...@gmail.com>

๋ฐ•์„ฑ์ฒ 

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Jun 7, 2009, 10:39:36โ€ฏPM6/7/09
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์ด๋ ‡๊ฒŒ ์ด๋Ÿฐ ์ €๋Ÿฐ ์˜๊ฒฌ ๋งํ•˜๊ณ  ๋“ฃ๋Š” ๊ฒƒ๋„ ์žฌ๋ฏธ์žˆ์ž–์•„์š”. ใ…Žใ…Ž
์‚ฌ์‹ค ์ด๋Ÿฌ๋‹ˆ ์ €๋Ÿฌ๋‹ˆ ํ•ด๋„ DI๋Š” ๊ทธ๋ƒฅ ์˜์กด์„ฑ ์ฃผ์ž…์œผ๋กœ ์ •๋ฆฌ๋˜๊ฒ ์ฃ . ์›Œ๋‚™ ๋งŽ์ด ์“ฐ๋Š” ์šฉ์–ด๊ณ  ๋งˆ๋•…ํ•œ ๋Œ€์•ˆ๋„ ์—†์œผ๋‹ˆ...

์ •์ž‘ ์ง€๊ธˆ ๊ณค๋ž€ํ•œ ๊ฒƒ์€ AOP ์ชฝ ์•„๋‹์ง€์š”.

์–ด์ฐŒ ๋˜์—ˆ ๊ฑด ์›”์š”์ผ ์•„์นจ์— ์›Œ๋ฐ์—… ์ž˜ ํ–ˆ์Šต๋‹ˆ๋‹ค.

๊ดด๋กœ์šฐ์…จ๋‹ค๋ฉด ์ฃ„์†ก... ^^

On 6์›”8์ผ, ์˜ค์ „11์‹œ16๋ถ„, Toby Lee <tobyi...@gmail.com> wrote:
> ๊ฐ์ž ์ž…๋ง›์— ๋งž๊ฒŒ ์“ฐ์ฃ . :)๊ทธ๋ž˜์„œ ์ฑ… ํ˜ผ์ž ์“ฐ๋Š”๊ฒŒ ํŽธํ•˜๊ตฐ์š”.

Seok-Ho Yang

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Jun 8, 2009, 4:14:31โ€ฏAM6/8/09
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์ €๋„ ๊ธ‰ ๊ถ๊ธˆํ•ด์ ธ์„œ ํ•œ๋ฒˆ ์ฐพ์•„๋ดค์Šต๋‹ˆ๋‹ค.. ใ…Ž

"Spring 2.0 ์ž…๋ฌธ"์ด๋ผ๋Š” ์ฑ…์„ ๋ณด๋‹ˆ ๊ทธ๋ƒฅ DI๋ผ๊ณ  ์“ฐ๊ณ  ์žˆ๋„ค์š” (ํ—ˆ๋•~) ^^
์ผ๋‹จ ํ•ด์„์—๋Š” "์˜์กด์„ฑ์˜ ์ฃผ์ž…"์ด๋ผ๊ณ  ๋˜‘๊ฐ™์ด ์“ฐ๊ณ  ์žˆ๊ตฌ์š”.
ํ‰์ƒ์‹œ ์šฉ์–ด๋กœ๋Š” DI๋ผ๊ณ  ๋ถ€๋ฅด๋Š”๋“ฏ ํ•ฉ๋‹ˆ๋‹ค.

์ผ๋ณธ์˜ ๋Œ€ํ‘œ DI Framework์ธ Seasar์—์„œ๋„ ๊ทธ๋ƒฅ dependency injection์ด๋ผ๊ณ  ํ•˜๊ณ  ๋งˆ๋„ค์š”.
๊ทธ๋Ÿฌ๊ณ ๋ณด๋‹ˆ ๋ฒˆ์—ญํ•˜๊ธฐย ์•„๋ฆฌ๊นŒ๋ฆฌํ•œ ์ฑ…์ œ๋ชฉ์€ ๊ทธ๋ƒฅ ์˜์–ด๋กœ ์“ฐ๊ณ  ๋ง๊ธฐ๋„ ํ•˜๊ตฌ์š”...

2009/6/8 Gir Won Lee <leeg...@gmail.com>
ใ…Žใ…Žใ…Žใ…Ž

๋””ํ‚ค

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Jun 8, 2009, 6:02:32โ€ฏAM6/8/09
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ํ† ๋ก ์ด ๊ฑฐ์˜ ๋๋‚œ ๋ถ„์œ„๊ธฐ ์žˆ๋Š”๋ฐ;;
๋ฒˆ์—ญ์ด ์•„๋‹Œ ์šฉ์–ด ์ฐฝ์ž‘์ด๋ผ๋ฉด

'๊ด€๊ณ„ ์ •๋ฆฝ' ๋„ ์ข‹์€ ๋ง ๊ฐ™์Šต๋‹ˆ๋‹ค.

๊ด€๊ณ„ ้—œไฟ‚ ๋ช…์‚ฌ
๋‘˜ ์ด์ƒ์˜ ์‚ฌ๋žŒ, ์‚ฌ๋ฌผ, ํ˜„์ƒ ๋”ฐ์œ„๊ฐ€ ์„œ๋กœ ๊ด€๋ จ์„ ๋งบ๊ฑฐ๋‚˜ ๊ด€๋ จ์ด ์žˆ์Œ. ๋˜๋Š” ๊ทธ๋Ÿฐ ๊ด€๋ จ. โ‰’๊ณ„๊ด€(ไฟ‚้—œ) .

์ •๋ฆฝ ๅฎš็ซ‹ ๋ช…์‚ฌ
์ „์ฒด์—์„œ ํŠน์ •ํ•œ ๋ฉด์ด๋‚˜ ์ผ์ •ํ•œ ๋‚ด์šฉ์„ ์ถ”์ถœํ•˜์—ฌ ๊ณ ์ •ํ•˜๋Š” ์ผ.

๋งˆ์Œ์— ๊ฑธ๋ฆฌ๋Š” ๊ฒƒ์€ ์˜์–ด๋ฅผ ํ•œ์ž๋กœ ๋ณ€์—ญํ•œ๋“ฏ ํ•ด์„œ;; ์ฟจ๋Ÿญ

์•ˆ์˜ํšŒ

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Jun 8, 2009, 7:34:17โ€ฏPM6/8/09
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'๊ด€๊ณ„ ์ •๋ฆฝ' ๋„ ์ข‹์€ ๋ง ๊ฐ™์Šต๋‹ˆ๋‹ค.

๋ฐ”๋žŒ์งํ•œ ์‹œ๋„๋„ค์š”. ํ•˜์ง€๋งŒ, "Injection"์ด ๋‚ดํฌํ•˜๋Š” ๋‚ด์šฉ ์ฆ‰, ๊ด€๊ณ„ ์ •๋ฆฝ(?)์„ 'Container๊ฐ€ ํ•œ๋‹ค'๋Š” ์ ์ด ๋“œ๋Ÿฌ๋‚˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค.
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