領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件

領(lǐng)域區(qū)動(dòng)設(shè)計(jì)件核心復(fù)雜性應(yīng)對(duì)之道EvaluatononlychAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL領(lǐng)域區(qū)動(dòng)設(shè)計(jì)1面向?qū)ο蟮姆治鲈O(shè)計(jì)軟件系統(tǒng)面向?qū)ο蟮脑O(shè)計(jì)思想可謂所史悠久,20世紀(jì)70年代的Smalltalk可以說(shuō)是面而若的經(jīng)典,直到今天我們?nèi)粚⑦@門(mén)語(yǔ)完師小象語(yǔ)言的基礎(chǔ)面向?qū)ο笫谴蟛炕咎匦?像C++、la、Obie這樣的靜態(tài)語(yǔ)言,Rby、Python這樣的動(dòng)態(tài)堤面向?qū)ο蟮恼Z(yǔ)言Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL面向?qū)ο蟮姆治鲈O(shè)計(jì)2領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)是什么領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)事實(shí)上針對(duì)是0OAD的一個(gè)擴(kuò)展和延伸,DDD基于面向?qū)ο蠓治雠c設(shè)計(jì)技術(shù),對(duì)技術(shù)框架進(jìn)行了分層規(guī)劃,同時(shí)對(duì)每個(gè)類(lèi)進(jìn)行了策略和類(lèi)型的劃分。It'sasetofprovenIngaIt'sasetofprindpactices-supportingthedevelopmentaIt'sasetofeaternsthatsupportacleanandcoherentviewoftheIt'sasetofpragmaticstrategiesallowingapplicationstoscaleinsizeandcomplexitymaintainingtheirintegrityValadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)是什么3為什么要領(lǐng)域驅(qū)動(dòng)?有助于團(tuán)隊(duì)創(chuàng)建一個(gè)業(yè)務(wù)部門(mén)技術(shù)部都理解的通用橫型,并用該味溝通業(yè)務(wù)需求PART數(shù)據(jù)實(shí)體、過(guò)程橫型伊·模型是模塊分廈<易于維護(hù)的,同時(shí)設(shè)0NE計(jì)還同費(fèi)吧提高對(duì)象的可重用性和可測(cè)試性。業(yè)筆人員和設(shè)計(jì)人員共同參與不以人為中心,更客觀的體現(xiàn)業(yè)務(wù)價(jià)值。Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL為什么要領(lǐng)域驅(qū)動(dòng)?4領(lǐng)域手務(wù)腳本Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL領(lǐng)域手務(wù)腳本5事務(wù)腳本(TransactionScript)的核心是過(guò)程,每個(gè)過(guò)程處理來(lái)自表現(xiàn)層的單個(gè)請(qǐng)求。大部分業(yè)務(wù)應(yīng)用都可以被看成一系列事務(wù),從某種程度上來(lái)說(shuō),通過(guò)事務(wù)腳本處理業(yè)務(wù),就像執(zhí)行條條Sq語(yǔ)句來(lái)實(shí)現(xiàn)數(shù)據(jù)庫(kù)信息的處理事務(wù)腳本把業(yè)務(wù)邏輯組織成單事過(guò)程中直接調(diào)用數(shù)據(jù)庫(kù)業(yè)務(wù)邏輯在服務(wù)(S處理Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL事務(wù)腳本(TransactionScript)的核心是過(guò)6Action處理U層的動(dòng)作請(qǐng)求,將Requeste中的數(shù)據(jù)組裝后傳遞給Businessservice,BS層做簡(jiǎn)單的邏輯處理后,調(diào)用數(shù)捃訪問(wèn)對(duì)象進(jìn)行數(shù)據(jù)持久化,其中∨O充當(dāng)了數(shù)據(jù)傳輸對(duì)象的作用,只具備getterFAsetterT法,沒(méi)有狀態(tài)和行為ActioBusinessserviDaoValadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyLAction處理U層的動(dòng)作請(qǐng)求,將Requeste中的數(shù)據(jù)7事務(wù)腳本模式的特點(diǎn)是簡(jiǎn)單容易理解,面向過(guò)程設(shè)計(jì)。對(duì)于少量遇輯的業(yè)務(wù)應(yīng)用來(lái)說(shuō)情式簡(jiǎn)單自然性能良好,容另理解,而一一個(gè)會(huì)響其他事務(wù)不過(guò)缺點(diǎn)也很明品薩師雜的業(yè)務(wù)邏輯處理力不從心,難以保持良好的設(shè)計(jì)多間的冗余代碼不斷增多,通過(guò)復(fù)制粘貼方式進(jìn)行復(fù)用?？删S護(hù)性和擴(kuò)展性變差。Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL事務(wù)腳本模式的特點(diǎn)是簡(jiǎn)單容易理解,面向過(guò)程設(shè)計(jì)。8領(lǐng)域模型(Domainmodel面向?qū)ο蠓治龊驮O(shè)計(jì)領(lǐng)城模型具備自己的屬性行為狀態(tài)并氣世界的業(yè)務(wù)對(duì)象相映射各類(lèi)具備明確的職責(zé)劃分時(shí)素之間通過(guò)聚合和引用等關(guān)系配合解決實(shí)際業(yè)務(wù)應(yīng)可復(fù)用,可易護(hù)展可以采用合適的設(shè)計(jì)模型迸行詳細(xì)設(shè)計(jì)要求設(shè)計(jì)人員有良好的抽象能力Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL領(lǐng)域模型(Domainmodel9Cantr-llesctionTD3,Valadononry.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyLCantr-llesction10領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件11領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件12領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件13領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件14領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件15領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件16領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件17領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件18領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件19領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件20領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件21領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件22領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件23領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件24領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件25領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件26領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件27領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件28領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件29領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件30領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件31領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件32領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件33領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件34領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件35領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件36領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件37領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件38領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件39領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件40領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件41領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-陳曉春課件42領(lǐng)域驅(qū)動(dòng)設(shè)計(jì)-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