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[鎽樿] 鏈枃涓昏瀵圭被鍜屽璞″垵濮嬪寲鍏ㄨ繃紼嬭繘琛屽垎鏋愶紝閫氳繃涓涓疄闄呴棶棰樺紩鍏ワ紝灝嗘簮浠g爜杞崲鎴?JVM 瀛楄妭鐮佸悗錛屽 JVM 鎵ц榪囩▼鐨勫叧閿偣榪涜鍏ㄩ潰瑙f瀽錛屽茍鍦ㄦ枃涓┛鎻掑叆浜嗙浉鍏?JVM 瑙勮寖鍜?JVM 鐨勯儴鍒嗗唴閮ㄧ悊璁虹煡璇嗭紝浠ョ悊璁轟笌瀹為檯緇撳悎鐨勬柟寮忎粙緇嶅璞″垵濮嬪寲鍜岀被鍒濆鍖栦箣闂寸殑鍗忎綔浠ュ強鍙兘瀛樺湪鐨勫啿紿侀棶棰樸?br />
綾葷殑鍒濆鍖栧拰瀵硅薄鍒濆鍖栨槸 JVM 綆$悊鐨勭被鍨嬬敓鍛藉懆鏈熶腑闈炲父閲嶈鐨勪袱涓幆鑺傦紝Google 浜嗕竴閬嶇綉緇滐紝鏈夊叧綾昏杞芥満鍒剁殑鏂囩珷鍊掓槸涓嶅皯錛岀劧鑰岀被鍒濆鍖栧拰瀵硅薄鍒濆鍖栫殑鏂囩珷騫朵笉澶氾紝鐗瑰埆鏄粠瀛楄妭鐮佸拰 JVM 灞傛鏉ュ垎鏋愮殑鏂囩珷鏇存槸椴滄湁鎵瑙併?/p>
鏈枃鍙戣〃浜嶪BM DW,璇︾粏姝f枃璇瘋 瑙f瀽JAVA綾誨拰瀵硅薄鐨勫垵濮嬪寲榪囩▼
緗戝潃:http://www-128.ibm.com/developerworks/cn/java/j-lo-clobj-init/index.htmlHeadius
http://headius.blogspot.com/2006/09/jruby-steps-into-sun.html
聽It's going to be a big news day for JRuby :)
The two core JRuby developers, myself and Thomas Enebo, will become employees at Sun Microsystems this month. Our charge? You guessed it...we're being hired to work on JRuby full-time.
Perhaps some of you may have seen this one coming. For others, it may be a pleasant surprise.
The primary goal is to give JRuby the attention it really needs. The potential for Ruby on the JVM has not escaped notice at Sun, and so we'll be focusing on making JRuby as complete, performant, and solid as possible. We'll then proceed on to help build out broader tool support for Ruby, answering calls by many in the industry for a "better" or "smarter" Ruby development experience. I'm also making it a personal priority to continue growing the JRuby community, foster greater cooperation between the Java and Ruby worlds, and work toward a "whole-platform" Ruby-on-JVM strategy for Sun.
And yes, JRuby will remain as open source as it is today. It just might start moving a bit faster (as if it weren't moving fast already!)
You can imagine how excited I am about this opportunity, and how pleased I am to know that Sun takes Ruby so seriously. Not only will I get to work on the project I've poured my heart into this past year, but I'll be able to do it while helping one of my favorite companies turn a technological corner. Naturally I've been talking with a myriad of folks at Sun over the past several weeks, so believe me when I say these guys really get it. The tide has turned and dynamic languages are on everyone's agenda. It's going to be quite a ride.
Thanks very much to Tim Bray, who has proven a fearless advocate for Ruby and dynamic languages at Sun. Thanks also to Gilad Bracha, Neal Gafter, James Gosling, Peter von der Ah茅, and others fighting to improve Java and make the Java platform a dynlang-friendly place. Thanks also to my Sun interviewers for their excellent, thoughtful questions and ideas about the future of JRuby and dynlangs on the JVM. I'm looking forward to working with you all.
And finally, thanks to all you who use, contribute to, and blog about JRuby. You're a huge part of this, and I want you all to join us on this great Ruby adventure. Community involvement has gotten JRuby where it is today, and community involvement is vital to making Ruby on the JVM a reality.
鎴戞墍鍦ㄧ殑欏圭洰鐢變簬涓鏈熶嬌鐢ㄧ殑鏄竴涓叕鍙哥殑寮鍙戝鉤鍙幫紝鍥犱負鍏跺鉤鍙拌嚜韜殑鍔熻兘闄愬埗鏃犳硶鎵╁睍銆侀毦浠ョ淮鎶や笖緋葷粺鍙帶鍒跺害鏋佷綆錛屽洜姝わ紝瀹㈡埛鏂瑰喅瀹氬湪浜屾湡閲嶆柊璁捐鏋舵瀯騫跺湪鏂扮殑鏋舵瀯涓婂畬鍏ㄩ噸鏂板紑鍙戯紝鑰屾垜姝f槸鍦ㄤ負鏂扮殑鏋舵瀯鍋氭妧鏈鐮旓紝鍏朵腑褰㈠艦鑹茶壊鐨勯棶棰樹貢濡傞夯銆?br />
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聽 1.鏀寔嫻佺▼綰у彉閲忓垱寤猴紝鍗存棤娉曠粰鍙橀噺璧嬪鹼紝閮侀椃錛岃繖涔堥噸瑕佺殑鍔熻兘灞呯劧榪樻病鎻愪緵
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鍐欏嚭鏉ョ殑妗嗘灦灝卞儚宸ュ叿鍖呬竴鏍鳳紝鐢變竴澶у爢鐪嬭搗鏉ユ病鏈夎仈緋葷殑綾誨爢縐屾垚銆?/P>
鍚庢潵錛岀粡鍘嗚繃涓嬈″ぇ欏圭洰鍚庯紝寮濮嬪叧娉ㄤ竴浜涘緩妯$悊璁轟互鍙婂紑婧愭鏋訛紝瀵瑰厛鍓嶇殑妗嗘灦璁捐鎬濇兂浜х敓鏋佸ぇ鐨勫啿鍑伙紝寮濮嬪叧娉ㄧ郴緇熺殑鏁翠綋鎼厤錛屾帴鍙hВ鑰︼紝浠g爜閲嶇敤錛岃嚜鍔ㄥ寲鎺у埗紼嬪害鏈夋墍鎻愰珮銆?BR>浣嗘劅瑙夐棶棰樿繕鏄緷鐒跺緢涓ュ郴錛屼富瑕佽〃鐜板湪錛氬緋葷粺鐨勬妸鎻″眰嬈′粛鐒跺亸浣?浠庝唬鐮佽搴﹀嚭鍙?錛岀己涔忓緋葷粺鏁翠綋鐨勬娊璞¤兘鍔涘拰寤烘ā鑳藉姏銆傚闆舵暎鐨勪笟鍔¤鍒欓毦浠ユ娊璞″嚭寰堝ソ鐨勪笟鍔℃ā鍨嬪茍浠ヤ笌緋葷粺鏋舵瀯緇撳悎璧鋒潵銆?/P>
鎬葷殑鏉ヨ鎴戠粡鍘嗕簡涓や釜闃舵錛?銆備互鍏敤鍩虹浠朵負鏍稿績鐨勭Н鏈ㄥ紡寮鍙?2銆備互灞閮ㄦ鏋剁粨鏋?瀹炵幇)涓鴻搗鐐癸紝鍒嗗眰鏁村悎鐨勬硾灝勫紡寮鍙?鏈鏄庢樉鐨勯棶棰樺氨鏄眰灞備箣闂翠笉鎴愪竴浣擄紝欏圭洰瓚婂ぇ瓚婂埌鍚庢湡灝辮秺鏉炬暎鍙樺緱瓚婃潵瓚婇毦浠ユ帶鍒?
鐩墠錛屽紑濮嬪皢鐩厜浠庣郴緇熶笟鍔″眰闈㈠嚭鍙戯紝浠ユ灦鏋勪負涓伙紝閫愭鍚戞鏋剁粨鏋勮璁¤繃娓$殑鏂瑰悜鍙戝睍錛屼絾榪欐椂甯鎬護鎴戞劅鍒板姏涓嶄粠蹇冿紝姣曞鐞嗚褰掔悊璁猴紝鐜板疄涓繕闇瑕佷赴瀵岀殑瀹炶返緇忛獙鍘葷瘡縐?/P>
棣栧厛寮曠敤璇存槑涓涓?/SPAN>Domain Model 鐨勫畾涔夛細
Domain Model 錛?/SPAN> An object model of the domain that incorporates both behavior and data.
Domain Model 鍒嗕袱縐嶏細
1 Simple Domain Model (Active Record)
瀹冪殑鐗圭偣鏄?/SPAN>POJO鍜?/SPAN>TABLE STRUCTURE涓涓瀵瑰簲錛屽緩妯″熀浜庢暟鎹簱璁捐銆?/SPAN>Hibernate璧扮殑灝辨槸榪欎釜璺瓙錛岃瀹冭傳琛錛屾剰鎬濆氨鏄寚瀹冨彧鏈?/SPAN>data錛屾病鏈?/SPAN>behavior銆?/SPAN>(浣嗘垜浠疄闄呭彲浠ラ氳繃HBM鏂囦歡鐨勫畾涔夊拰鏄犲皠錛屽湪PO涓傚綋鐨勫姞鍏ヤ竴浜涘熀鏈殑涓氬姟閫昏緫鐨勩?/SPAN>)
鍦ㄨ繖縐嶆ā寮忎笅錛?/SPAN>POJO鑷繁鐨?/SPAN>CRUD鎿嶄綔閮藉簲璇ユ斁鍦ㄨ嚜宸辯殑綾婚噷闈€傚叾浠栧鏉傜殑涓氬姟閫昏緫浼氭斁鍒板闈㈢殑Service layer銆?/SPAN>
2 Rich Domain Model (Data Mapper)
瀹冪殑鐗圭偣鏄?/SPAN>POJO鍜?/SPAN>TABLE STRUCTURE騫朵笉涓涓瀵瑰簲錛屽緩妯″ぉ椹絀猴紝瀹屽叏鍙栧喅浜庝笟鍔¢昏緫銆?/SPAN>domain object鍜?/SPAN>table涔嬮棿鐨?/SPAN>mapping錛岀敱Data Mapper瀹屾垚錛?/SPAN>domain object涓嶇敤綆℃暟鎹〃鏄綍絳夌粨鏋勶紝鐢氳嚦涓嶇敤綆?/SPAN>Data Mapper鎬庝箞鎿嶄綔銆?/SPAN>
1.璇嗗埆鏌愮涓氬姟琛屼負鐨勪竴涓緢紜畾鐨勫師鍒欙細
domain logic鍙簲璇ュ拰榪欎竴涓?/SPAN>domain object鐨?B style="mso-bidi-font-weight: normal">瀹炰緥鐘舵?/B>(騫墮潪鈥滄寔涔呪濈姸鎬?/SPAN>)鏈夊叧錛岃屼笉搴旇鍜屼竴鎵?/SPAN>domain object鐨勭姸鎬佹湁鍏?/SPAN>.
榪涗竴姝ョ殑璇達細涓昏鐪?/SPAN>logic鏄惁鍙拰榪欎釜object(娉細鎸囪嚜韜?/SPAN>)鐨勭姸鎬佹湁鍏籌紝濡傛灉鍙拰榪欎釜object(娉細鎸囪嚜韜?/SPAN>)鏈夊叧錛屽氨鏄?/SPAN>domain logic錛涘鏋?/SPAN>logic鏄拰涓鎵?/SPAN>domain object(娉細鎸囧悓綾誨瀷鐨勫疄浣?/SPAN>)鐨勭姸鎬佹湁鍏籌紝灝變笉鏄?/SPAN>domain logic錛岃屾槸business logic銆?/SPAN>
2.Domain Model 涓?/SPAN> Hibernate PO 鐨勫尯鍒細
棰嗗煙妯″瀷鐨勪唬鐮佸疄鐜伴渶瑕佺敤涓緇勪簰鐩稿崗浣滅殑綾繪潵瀹屾垚錛屾瘡涓涓垨鑰呬竴緇勭被鎵挎媴榪欎釜棰嗗煙妯″瀷鐨勬煇涓壒寰併傝?/SPAN>Hibernate鐨勫疄浣撶被鍙笉榪囨槸鍏朵腑鐨勪竴緇勭被錛屽畠鎵挎媴鐨勮亴璐e氨鏄繚鎸侀鍩熸ā鍨嬬殑鐘舵佺殑銆?/SPAN>
3.鍩轟簬Domain Model 鍒嗘瀽涓庤璁$殑鏂規硶瑙勫垯錛?/SPAN>
搴旇鐢?B style="mso-bidi-font-weight: normal">棰嗗煙妯″瀷鏉ラ┍鍔ㄤ綘鐨勮蔣浠?B style="mso-bidi-font-weight: normal">鍐呭湪瑙勫垯錛岀敱闇姹?/B>椹卞姩浣犵殑杞歡澶栧湪浜や簰.
鏈鍚庯紝鎴戞兂琛ュ厖鐨勬槸錛氭牴鎹洰鍓嶇殑O/R Mapping鎶鏈紝鎴戜滑鍦ㄥ疄闄呴」鐩紑鍙戜腑錛岃兘鐪熸鍋氬埌 瀵岄鍩熸ā鍨?/SPAN> 榪樹笉鐜板疄(鍥犱負鎴戜滑榪樿鑰冭檻璇稿鎬ц兘銆佺洰鍓?/SPAN>O/R鎸佷箙鍖栫壒鎬х瓑絳夐棶棰?/SPAN>)錛屾洿浣曞喌錛屾垜浠殑MODEL DATA鏈緇堥渶瑕佽鎸佷箙鍖栵紝鍥犳錛屾垜姣旇緝鍙嶅鍦?/SPAN>DOMAIN MODEL 涓洿鎺ラ氳繃浠諱綍鏂瑰紡鍋氫換浣曟寔涔呭寲鎿嶄綔錛屽洜涓鴻繖浼氳浣犳墍璁捐鐨?/SPAN>MODEL鏃犳硶鐙珛鍖栵紝闅句互鍗曞厓嫻嬭瘯錛屽茍涓斾笌鍔犲叆浜嗕竴浜涘鐣屾棤鍏崇殑涓滆タ錛岃繖涓嶇鍚堝璞$殑鏈川(瀵硅薄鏈韓鏄笉鑳芥寔涔呭寲鐨?/SPAN>)銆傝櫧鐒舵垜浠仛涓嶅埌瀹屾暣鎰忎箟涓婄殑Domain Driving Model Development錛屼絾鎴戜滑鍙互鍦ㄩ」鐩疄闄呭紑鍙戜腑鍥犱負鎬ц兘銆佺粨鏋勭畝鍖栫瓑絳変笂闈㈠緱鍒拌ˉ鍋匡紝榪欏凡緇忓煎緱嬈f叞浜嗐?BR>