The Right Way to Code DCI in Ruby :: Mike Pack Development
Note: This website has been deprecated and is no longer maintained. Many articles found in the Ruby community largely oversimplify the use of DCI. These articles, including my own, highlight how DCI injects Roles into objects at runtime, the essence of the DCI architecture. Many posts regard DCI in the following way: class User; end # Data module Runner # Role def run ... end end user = User.new #
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Clean Ruby - the ebook about Ruby, Rails, DCI and OOP. Don't just make abstractions, write clean, intention-revealing Ruby. Written by Jim Gay
“I always get so frustrated trying to dig through a project new or old, and trying to trace the flow of execution and how things fit together...†You can't afford complicated code. Writing small and easily testable methods can certainly clean things up, but as your application grows your classes start to know too much. Large classes means a large cognitive overhead for understanding how things wor
Objects on Rails is Retired
If you’re reading this, you have my permission to nag me to write up an actual post about why I’m no longer distributing Objects on Rails. In the meantime, feel free to sign up for my free email course about how most of what they told me about object-oriented programming was wrong: Lies of Object-Oriented Programming in Ruby and Rails
DCIã«ã¤ã„ã¦å¼•ã続ãæ‚©ã‚€ - エンジニアã®ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢çš„愛情
「Lean Architecture for Agile Software Developmentã€ã®ãƒ‰ãƒ©ãƒ•ãƒˆã®APPENDIX Aã®Scalaã®ã‚³ãƒ¼ãƒ‰ã‚’æ„訳ã—ã¦ã¿ã‚‹ã€‚ 本文ä¸ã«C++ã®ã‚³ãƒ¼ãƒ‰ãŒã‚ã‚‹ã‚“ã§ã™ãŒã€ã¾ã¨ã¾ã£ãŸå½¢ã®ã‚³ãƒ¼ãƒ‰ã«ãªã£ã¦ã„ãªã‹ã£ãŸã®ã§ã€ä»–言語ã§ã®ä¾‹ã‹ã‚‰é€†ã«C++ã«ç¿»è¨³ã—ã¦ã¿ã¾ã—ãŸã€‚ ã“ã“ã§ã¯main関数ãŒContextã®å½¹ç›®ã‚’æžœãŸã—ã¦ã„ã¾ã™ã€‚ãŸã¶ã‚“。 Scalaã§tratã¨ã—ã¦è¡¨ç¾ã—ã¦ã„ã‚‹ã‚‚ã®ã‚’ã€ä»®æƒ³ã‚¯ãƒ©ã‚¹ã§è¡¨ç¾ã—ã¦ã¿ã‚ˆã†ã¨ã—ãŸã‚“ã§ã™ãŒã€MoneySink::increaseBalance, MoneySink:updateLogã¨Account::increaseBalance, Account::updateLogã®è¡çªã‚’ã†ã¾ã解消ã§ããšã€è‹¦è‚‰ã®ç–㧠transferToを関数テンプレートã«ã—ãŸã‚“ã§ã™ãŒã€ã“ã†ã—ã¦ã—ã¾ã†ã¨MoneySinkを定義ã™ã‚‹æ„味ãŒãªããªã£ã¦ã—ã¾ã„
DCIãŒé¢ç™½ã„件 - ヽ( ・∀・)ノãã¾ãã¾ãƒ¼(2010-05-12)
â— DCIãŒé¢ç™½ã„件 DCI凄ã„ï¼ãƒ¤ãƒã‚¤ï¼ 「DCIアーã‚テクãƒãƒ£ - Trygve Reenskaug and James O. Coplienã€(翻訳) http://d.hatena.ne.jp/digitalsoul/20100131/1264925022 å‰ã«èªã‚“ã ã¨ãã¯é›£ã—ã™ãŽã¦(é•·ã™ãŽã¦)途ä¸ã§æŒ«æŠ˜ã—ãŸã‘ã©ã€ä»Šæ”¹ã‚ã¦èªã‚“ã らDCIã¯å‡„ã„ã¨æ°—付ã„ãŸã€‚以下ã€ã¾ã¨ã‚。 今回ã€å†…容ç†è§£ã®æ±ºã‚手ã¨ãªã£ãŸã®ã¯ã€Œå‰åŠéƒ¨åˆ†ã‚’èªã¾ãªã„ã€ã“ã¨ã ã£ãŸã€‚ ãã‚“ãªç„¡è¬€ãªèªã¿æ–¹(èªã‚“ã§ãªã„ã®ã ã‘ã‚Œã©)ã‚’ã—ãŸç§ã®ç†è§£ãªã®ã§ã€ ã‚‚ã¡ã‚ã‚“é–“é•ã„ã¯ã‚ã‚‹ã¯ãšã€‚ ã¨ã„ã†å‰æã§ã€ ツッコミを入れる気満々ãªãƒ†ãƒ³ã‚·ãƒ§ãƒ³ã§ã©ã†ãžã€‚ å¤æ¥ã‹ã‚‰ãƒ—ãƒã‚°ãƒ©ãƒ ã®ä¸å¿ƒã¯ï¼œãƒ‡ãƒ¼ã‚¿ï¼žã§ã‚ã£ãŸ ãªãœãªã‚‰ã€ãã‚ŒãŒè¨è¨ˆã®ä¸ã§ä¸€ç•ªå¤‰åŒ–ã—ã«ãã„è¦ç´ (箇所)ã§ã‚ã‚‹ã‹ã‚‰ ãã—ã¦ã€ï¼œãƒ‡ãƒ¼ã‚¿æ§‹é€ ＞ã¨ãã‚Œã«å¯¾ã™ã‚‹ï¼œå‡¦ç†ï¼žã®2ã¤ã§è€ƒãˆã‚‹ã‚ˆã†ã«ãªã£ãŸ (手続ãåž‹
DCI (Data Context Interaction)
3月19æ—¥(月)ã«è¦æ±‚開発アライアンスã®ã‚»ãƒƒã‚·ãƒ§ãƒ³ã€ŽObject-Functional Analysis and Design: 次世代モデリングパラダイムã¸ã®é“標ã€ã‚’è¡Œã„ã¾ã—ãŸãŒã€èª¬æ˜Žã‚’端折ã£ãŸã¨ã“ã‚ã‚’ä¸å¿ƒã«ã‚¹ãƒ©ã‚¤ãƒ‰ã®å›žé¡§ã‚’ã—ã¦ã„ã¾ã™ã€‚ 今回ã¯ã€ŒData Context Interaction (DCI)ã€ã¨ã—ã¦ç”¨æ„ã—ãŸä»¥ä¸‹ã®ã‚¹ãƒ©ã‚¤ãƒ‰ã‚’説明ã—ã¾ã™ã€‚ オブジェクト・モデリングã®å•é¡Œç‚¹ã®ä¸€ã¤ã«ã€ãƒ¦ãƒ¼ã‚¹ã‚±ãƒ¼ã‚¹ã‹ã‚‰ãƒ‰ãƒ¡ã‚¤ãƒ³ãƒ»ã‚ªãƒ–ジェクトã¸çœŸé¢ç›®ã«è²¬å‹™ã®åˆ†æ•£é…備をã—ã¦ã„ãã¨ã€ãƒ‰ãƒ¡ã‚¤ãƒ³ãƒ»ã‚ªãƒ–ジェクトã®å®Ÿç¾ãŒéžå¸¸ã«é‡ãŸããªã£ã¦ã—ã¾ã†ã¨ã„ã†å•é¡ŒãŒã‚ã‚Šã¾ã™ã€‚ ドメイン・モデルãã®ã‚‚ã®ã«ç”±æ¥ã™ã‚‹ãƒ‰ãƒ¡ã‚¤ãƒ³ãƒ»ãƒã‚¸ãƒƒã‚¯ã‚’ドメイン・オブジェクトã§å®Ÿç¾ã™ã‚‹ã®ã¯ã€æœ¬æ¥ã®ã‚ªãƒ–ジェクト指å‘ã®è¶£æ—¨ã«ã‚‚則ã£ã¦ãŠã‚Šå•é¡Œã‚ã‚Šã¾ã›ã‚“。 論点ã¨ãªã‚‹ã®ã¯ãƒ¦ãƒ¼ã‚¹ã‚±ãƒ¼ã‚¹ç”±æ¥ã®ã‚¢ãƒ—リケーション・ãƒã‚¸ãƒƒã‚¯ã€‚ã“ã®ã‚¢ãƒ—リケーション・ãƒã‚¸ãƒƒã‚¯ã‚’ã€(1
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http://rubysource.com/dci-the-evolution-of-the-object-oriented-paradigm/
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DCI and the application builds our mental models
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