strategy of client side - DDD

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ઓུతClient-DDD iOSϥϯνษڧձ 2018/04/25 @to4iki 1

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Agenda • DDDʹ͍ͭͯ(ઓུͷ؍఺Ͱͬ͟ͱઆ໌) • ΫϥΠΞϯταΠυͰ༗ޮͳͷ͔ߟ͑Δ • ·ͱΊ 2

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DDD 3

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DDD = ϨΠϠʔυΞʔΩςΫνϟͱ͍͏ೝࣝ͸ޡղΛੜ͡Δ DDDͷຊ౰ͷࢫຯ͸"ઓུ໘"ʹ͋Δ 4

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υϝΠϯۦಈઃܭ Domain Driven Design 5

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DDDͱ͸ • υϝΠϯϞσϧΛத৺ʹߟ͑Δઃܭࢥ૝ • DDD͸ݴ༿Λେ੾ʹ͢Δઃܭࢥ૝ • XP(ΠϯΫϦϝϯλϧͳઃܭ) + OO(ΦϒδΣΫτࢦ޲) • OOP > DDD ݪ఺ճؼͳ͚ͩɻैདྷͷԆ௕ઢ্ʹ͋Δ΋ͷ 6

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DDDͷ໨త͸ ιϑτ΢ΣΞͷ֩৺ʹ͋Δ ෳࡶੑͱઓ͏ࣄ 7

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ۜͷ஄ؙͰ͸ͳ͍ • ΦϒδΣΫτࢦ޲ઃܭͷݪཧओٛΛओு͢Δઃܭख๏Ͱ͸ͳ ͍ɻ఻౷తͳ͍͔ͭ͘ͷߟ͑ํΛجʹɺڧௐ͢Δ఺ΛͣΒͯ͠ ͍Δ • DDD͕޲͔ͳ͍৔໘΋΋ͪΖΜ͋Δ 9

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DDDͷҙٛ1 • Ϗδωεͷઐ໳Ո(υϝΠϯΤΩεύʔτ)ͱ։ൃऀΛ ಉ͡౔ඨʹ৐ͤΔࣄ Ͱɺ։ൃऀͷࢹ఺͚ͩͰͳ͘Ϗδωεଆͷࢹ఺΋౿·͑ͨιϑτ΢ΣΞ Λ࡞ ΕΔΑ͏ʹ͢Δ • ͦͷιϑτ΢ΣΞͷ֓೦Λཧղ͍ͯ͠ΔͷҰ෦ͷਓ(͍͍ͨͯ͸։ൃऀ)ͨͪͩ ͚ͱ͍͏ঢ়گΛͳ͘͢ • υϝΠϯΤΩεύʔτͱ։ൃऀɺιϑτ΢ΣΞͦͷ΋ͷͱͷؒͰɺ௨༁Λෆ ཁͱ͢Δ 1 Θ͔ΔʂυϝΠϯۦಈઃܭ ʙ΋ͪͪ͜ΌΜͷେ๯ݥʙʲC91৽ץʳ 10

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FYI: ͱ͔͔ͬΓʹ ઓུతDDDͷࢫຯ͕؆ܿʹॻ͔Ε͍ͯΔ 11

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υϝΠϯͱ͸ʁ • ιϑτ΢ΣΞΛར༻͢Δਓͨͪͷ׆ ಈ"ͱ"ؔ৺ࣄ" • ιϑτ΢ΣΞͷ֩৺͸υϝΠϯʹؔ܎ ͨ͠໰୊ΛϢʔβͷͨΊʹղܾ͢Δೳ ྗͰ͋Δ2 • ͍ΘΏΔۀ຿ྖҬ(ιϑτ΢ΣΞͰղܾ ͍ͨ͠໰୊) 2 ΤϦοΫɾΤϰΝϯεͷυϝΠϯۦಈઃܭ 12

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ex. ϞϯελʔΛ౗͠ɺ Ϩϕϧ্͕͕ΔήʔϜͷυϝΠϯ(ۀ຿ྖҬ)Λߟ͑ͯΈΔ 13

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ϞϯελʔϋϯλʔGO(Ծ)ͷυϝΠϯ • ϓϨΠϠʔ͸ϞϯελʔΛ౗͢ • Ϟϯελʔͷ࢟͸ARٕज़ʹΑͬͯΧϝϥʹөͬͨ෩ܠʹ߹੒͞ ΕΔ • Ϟϯελʔͷ࢟͸ݱ࣮ੈքʹଘࡏ͢Δ͔ͷΑ͏ʹݟ͑ɺྟ৔ײ ͕͋Δ 14

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ϢϏΩλεݴޠ 15

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͍ͭͰ΋ɾͲ͜Ͱ΋ɾ୭Ͱ΋ ࢖͑Δݴ༿ 16

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ϢϏΩλεݴޠ 17

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ϢϏΩλεݴޠ͕ແ͍ͱ • ϏδωεαΠυͱ։ൃऀͱͰಉ͡ࣄΛผʑʹݴ͍׵͍͑ͯͨΓ • ઐ໳༻ޠͷ௨༁ऀ͕ඞཁʹͳΔ • => ίετ͕ߴ͍ɺਖ਼֬ੑ΋๡͘͠ɺ଎౓΋஗͍ 18

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ڞ௨ݴޠج൫Λ࢖ͬͯ௨༁Λແ͘͢ Ոܭ฽αʔϏεͷ৔߹ͷυϝΠϯͱͦΕҎ֎ - ⭕ Պ໨ຖͷຖ݄ͷ߹ܭֹۚΛूܭͰ͖Δ - ❌ Ոܭ฽ͷฤूཤྺΛHISTORYςʔϒϧʹอଘ͢Δ - ⭕ ࢒ֹ͸ཌ݄ʹ܁ΓӽͤΔ 19

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ϢϏΩλεݴޠ͕ղܾ͢ΔྖҬ • ೝࣝͷࠩҟΛ཈͑ΔͨΊʹɺڞ௨ݴޠΛج൫ͱ͢Δɻ͜ͷݴޠ ͸νʔϜͷ࡞ۀͷࢸΔॴʹଘࡏ͢Δ • Ұ੾ͷ௨༁Λෆཁ͠ɺυϝΠϯʹର͢ΔཧղΛΑΓεϜʔζͳ ΋ͷʹ͢Δ • ཧ૝͸Ϣʔβʔ͕࢖͏ݴ༿(ex. χίχίͷੜओɺεϨओ) 20

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͓·͚: ڥք͚ͮΒΕͨίϯςΩετ(BC) ΞΧ΢ϯτͬͯԿͰ͔͢ʁ Ϣʔβʔೝূͷ͜ͱΛࢦ͢ͷ͔ͳ 21

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͓·͚: ڥք͚ͮΒΕͨίϯςΩετ(BC) • ݸਓͷه࿥(ใࠂॻ)ͱͯ͠ͷΞΧ΢ϯτ(จֶίϯςΩετ) • ޱ࠲ͱͯ͠ͷΞΧ΢ϯτ(ۜߦίϯςΩετ) • BCͷҧ͍ʹΑΓϞσϧ(ϢϏΩλεݴޠͷҙຯ߹͍)͕ҟͳΔ 22

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ϞϯελʔϋϯλʔGO(Ծ)ͷϢϏΩλεݴޠ • ϓϨΠϠʔ, ϋϯλʔ • ౗͢, ङΔ 23

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ϞϯελʔϋϯλʔGO(Ծ)ͷυϝΠϯ࠶ߟ • ϋϯλʔ͸ϞϯελʔΛङΔ • Ϟϯελʔͷ࢟͸ݱ࣮ੈքʹଘࡏ͢Δ͔ͷΑ͏ʹݟ͑Δ 24

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͜ͷݴ༿ͷ௨Γʹɺίʔυʹ൓ө͢Δ ϋϯλʔ͸ϞϯελʔΛङΔ ↓ ϋϯλʔ(Hunter)Ϟσϧ͸Ϟϯελʔ(Monstor) ΛङΔ(hunt)ͱ͍͏ৼΔ෣͍Λ࣋ͭ 25

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υϝΠϯͷ஌ࣝ΍ৼΔ෣͍Λந৅Խ ͨ͠ͷ͕υϝΠϯϞσϧ 26

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υϝΠϯϞσϧ • ಛఆͷਤͰ͸ͳ͘ɺਤ͕఻͑Α͏ͱ͢ Δߟ͑ํΛࣔͨ͠΋ͷ 3 • Ϟσϧ͸ϓϩδΣΫτʹܞΘΔਓʑͷ ಄ͷதͰߏங͞Εͨ֓೦ͷू·Γ 3 ࣮ફυϝΠϯۦಈઃܭ 27

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͜͜·Ͱͷ·ͱΊ(খٳܜ) • DDD: υϝΠϯϞσϧΛத৺ʹߟ͑Δઃܭࢥ૝ • υϝΠϯ: ૊৫͕ߦ͏ࣄۀʹΑͬͯղܾ͍ͨ͜͠ͱ = ۀ຿ • υϝΠϯϞσϧ: υϝΠϯͷ஌ࣝ΍ৼΔ෣͍Λந৅Խͨ͠΋ͷ • ϢϏΩλεݴޠ: ͍ͭͰ΋ɾͲ͜Ͱ΋ɾ୭Ͱ΋࢖͑Δݴ༿ 28

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ຊ୊ Ͱ͸ɺΫϥΠΞϯταΠυͷ (υϝΠϯ)Ϟσϧʹ͍ͭͯߟ͑ͯΈΔ 29

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ΫϥΠΞϯταΠυϓϩάϥϛϯάͷ ओ໨త͸ʁ 30

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ΫϥΠΞϯταΠυϓϩάϥϛϯάͷ೉͍͠఺ 1. APIϨεϙϯεΛͲͷΑ͏ʹViewʹ൓ө͢Δ͔ 2. ෳࡶʹՄม͠͏Δσʔλͷঢ়ଶΛͲͷΑ͏ʹViewʹ൓ө͢Δ͔ 3. ཧ૝తͳUI/UXΛͲͷΑ͏ʹViewʹ൓ө͢Δ͔(࣮ݱ͢Δ͔) 31

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ΫϥΠΞϯτϓϩάϥϛϯάͷ೉͠͞ͷ8ׂͰ͋Γ׌ͭओ໨త͸ɺ ͲͷΑ͏ʹඳը͢Δ͔ (Viewʹ൓ө͢Δ͔)ͩͱࢥ͏ 32

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΋͏Ұճ ΫϥΠΞϯταΠυͷϞσϧͬͯԿͩʁ 33

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ΫϥΠΞϯταΠυͷϞσϧ(1/2) • ❌ APIͷϨεϙϯεΛϚοϐϯάͨ͠ܕ • ❌ APIͷϨεϙϯεΛඳըʹదͨ͠ܗࣜʹม׵ͨ͠DTO • ⭕ αʔόαΠυ͕σʔλ૚ʹͳ͍ͬͯΔ৔߹͸ɺΫϥΠΞϯτ ʹυϝΠϯϞσϧΛఆٛ͢Δ • ⭕ ΫϥΠΞϯτଆ͚ͩͰӬଓԽΛߦ͏৔߹͸ɺΫϥΠΞϯτʹ υϝΠϯϞσϧΛఆٛ͢Δ 35

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ΫϥΠΞϯταΠυͷϞσϧ(2/2) • ! ෳࡶੑͷղܾͷͨΊʹΫϥΠΞϯτʹαʔόαΠυͷυϝΠ ϯϞσϧͷίϐʔ͕͍ͯ΋ྑ͍ʁ • ! αʔό͔Βड͚औͬͨσʔλΛϦϚοϓͯ͠ΫϥΠΞϯτଆ ʹओಋݖΛ࣋ͨͤΔઃܭͳΒυϝΠϯϞσϧΛΫϥΠΞϯτ͕ ࣮૷ͯ͠΋ྑ͍ʁ 36

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! ෳࡶੑͷղܾͷͨΊʹΫϥΠΞϯτʹ(αʔόαΠυͷίϐʔͷ) υϝΠϯϞσϧ͕͍ͯ΋ྑ͍ʁ 37

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(લఏ)֤αʔόαΠυͷίϯςΩετΛవΊͯѻ͏Ϋϥ ΠΞϯτ5 5 https://motida-japan.hatenablog.com/entry/2017/10/16/183508 38

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υϝΠϯϞσϧΛ࣋ͬͯ΋ྑ͍৔߹(1/2) ίϯςΩετͷ౷߹ΛΫϥΠΞϯτ಺Ͱߦ͏ 39

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υϝΠϯϞσϧΛ࣋ͬͯ΋ྑ͍৔߹(2/2) ΦϑϥΠϯͰ΋ಈ͘͜ͱΛอূ͢Δ 40

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υϝΠϯϞσϧΛ࣋ͨͳͯ͘΋ྑ͍৔߹ ΫϥΠΞϯτͰ͸ҰͭͷίϯςΩετ͔͠ѻΘͳ͍ 41

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͜͜·Ͱͷ·ͱΊ • ΫϥΠΞϯτϓϩάϥϛϯά͸Ͳ͏ඳը͢Δ͔͕ओ໨త • ΫϥΠΞϯταΠυͰͷυϝΠϯϞσϧ͸ɺඞཁʹͳΔέʔε ͸έʔεόΠέʔε • ෳࡶͳ৔߹ = ෳ਺ͷίϯςΩετʹ·͕ͨΔΞϓϦέʔγϣϯ Λ࡞Δ৔߹ɺΫϥΠΞϯτʹ΋υϝΠϯϞσϧ͸͍ͯ΋ྑ͍(͍ Δ΂͖) 42

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શମͷ·ͱΊ • Ϟσϧ(ۀ຿)͸φϚϞϊɺมԽ͢ΔͷͰߟ͑ҭͯͯߦ͘ͷ͕େࣄ • αʔόɾΫϥΠΞϯτؔ܎ͳࣗ͘෼͕ͨͪܞΘΔۀ຿ʹؔ৺Λ ࣋ͪऔΓ૊Ή͜ͱͰɺΑΓྑ͍Ϟσϧ͕ੜ·ΕΔ 43

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Thanks 44

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SeeAlso • https://speakerdeck.com/j5ik2o/domeinqu-dong-she-ji-ji-chu- jiang-zuo-zhan-lue-bian • https://www.slideshare.net/hirokishigemura9/ruby-ddd • http://y-anz-m.blogspot.jp/2017/03/droidkaigi-2017_9.html • http://y-anz-m.blogspot.jp/2018/02/android.html 45