AWS CDKで"使う"GoFデザインパターン〜実際どうなの？〜 / GoF design patterns used with AWS CDK

by k.goto

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LHPUP าͷςοΫ "84$%,ͰֶͿ (P'σβΠϯύλʔϯ ʙ࣮ࡍͲ͏ͳͷʁʙ +"846($%,ࢧ෦ ࢖͏

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ࣗݾ঺հ LHPUP w ςοΫϦʔυɾϥʔϝϯ޷͖ w "84$PNNVOJUZ#VJMEFS %FW5PPMT w าͷςοΫ ٕज़ϒϩά w ࣗ࡞"84πʔϧͷ044։ൃ w "84$%,$POUSJCVUPS ‣ $POTUSVDU)VCެ։΋ w 5XJUUFS!@TUFQ@UFDI ‣ LHPUP าͷςοΫ

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(P'σβΠϯύλʔϯͱ͸ w ॻ੶ʰΦϒδΣΫτࢦ޲ʹ͓͚Δ࠶ར༻ͷͨΊͷσβΠϯύλʔϯʱ ˞ ‣ ௨শʰ(P'ຊʱ ‣ (P' (BOHPG'PVS ͜ͷڞஶऀͷਓ ‣ શύλʔϯ w ݹ͔͘Β͋Δ͕ɺ"84$%,ͷ಺෦࣮૷ʹ΋Ұ෦༻͍ΒΕ͍ͯΔ ˞ʰΦϒδΣΫτࢦ޲ʹ͓͚Δ࠶ར༻ͷͨΊͷσβΠϯύλʔϯʱ ιϑτόϯΫύϒϦογϯά ஶΤʔϦώɾΨϯϚɺϥϧϑɾδϣϯιϯɺϦνϟʔυɾϔϧϜɺδϣϯɾϒϦγσΟʔε ؂༁ຊҐాਅҰ ٢ా࿨थ

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(P'σβΠϯύλʔϯͱ͸ IUUQTEPDTBXTBNB[PODPNKB@KQQSFTDSJQUJWFHVJEBODFMBUFTUCFTUQSBDUJDFTDELUZQFTDSJQUJBDSFVTBCMFQBUUFSOTCFTUQSBDUJDFTIUNM 5ZQF4DSJQUͰ$%,Λॻ͘ࡍͷϕετϓϥΫςΟεͱͯ͠ ެࣜυΩϡϝϯτͰ(P'σβΠϯύλʔϯ͕঺հ

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"84%FW%BZ5PLZP

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"84$%,ͰֶͿ(P'σβΠϯύλʔϯ ʙ*B$ʹ΋ίʔυઃܭʙ

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"84$%,ͰֶͿ(P'σβΠϯύλʔϯ ʙ*B$ʹ΋ίʔυઃܭʙ ࢖͏ ʙ࣮ࡍͲ͏ͳͷʁʙ

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"84$%,ͷཧ૝ɾݱ࣮ w ཧ૝ɿJGจGPSจશ෦ແ͠ʂ w ݱ࣮ɿ؀ڥࠩҟΛ࣮ݱ͠ͳ͍ͱ͍͚ͳ͍͜ͱʹɾɾɾ ‣ ֤։ൃऀͷ؀ڥͰ͸$IBUCPU TMBDLνϟϯωϧ ɺ8"'ɺ֎ܗ؂ࢹ͸࡞Βͳ͍ ‣ ͑ͬɺͦͷ؀ڥ͚ͩ*1੍ݶͰ͔͢ʂʁ ৚݅෼ذ JGจ ͕ൃੜʂ ίʔυͷෳࡶԽɾංେԽʂ

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͑ʁ (P'σβΠϯύλʔϯͬͯ $%,ʹ࢖͑ΔΜͰ͔͢ʁ

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$%,º(P'σβΠϯύλʔϯͷϝϦοτ ίʔσΟϯάʹ͓͚Δઃܭ஌͕ࣝ෇͖ɺΞϓϦ։ൃʹੜ͔ͤΔ $%,ίʔυΛޮ཰Α͘ॻ͚Δ ‣ ৚݅෼ذ͕ݮΔ ‣ ݟ௨͕͠ྑ͘ͳΓϑΝΠϧ͕ංେԽ͠ͳ͍ ˠཧղ༰қੑɾ֦ுੑ࠶ར༻ੑͷ޲্ 㲈อकੑͷ޲্ $%,ͬͯԿΛ࡞͍ͬͯΔͷ͔Θ͔ΓͮΒ͍͕࣌͋ͬͯɾɾɾ Πϯελϯεੜ੒ͯ͠ม਺ʹೖΕͯϝιουݺΜͰ෼ذͯ͠ʜ

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$%,º(P'σβΠϯύλʔϯͷσϝϦοτ ίʔσΟϯάઃܭͷ஌͕ࣝ͋Δఔ౓ඞཁ ಠࣗ࿏ઢͰ͸͋Δ ࣮༻ྫ͕গͳ͍ͷͰ ‣ $%,ͷ໨త͸ʮΠϯϑϥߏஙఆٛʯએݴతɾ੩తͳهड़έʔε͕ଟ͍ ޮ཰ੑΑΓ΋γϯϓϧʹఆ͚ٛͩฒ΂͍ͨ ‣ ʮ΍Γա͗ʯʹͳΔՄೳੑ ·ʙͨมͳ͜ͱͯ͠ɺແ஡ۤ஡ɾΦϨΦϨʹͳͬͪΌ͏ΜͰ͠ΐʁ

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(P'σβΠϯύλʔϯιϑτ΢ΣΞ޻ֶ ܾͯ͠ແ஡ۤ஡ɾΦϨΦϨͰ͸ͳ͍ ύλʔϯɿܕɼ༷ࣜ σβΠϯɿઃܭ

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"84$%,ֵ৽తͳ*B$ ैདྷͷ*B$ʹ͸ͳ͍ ༷ʑͳՄೳੑΛൿΊ͍ͯΔ

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$%,º(P'σβΠϯύλʔϯͷՄೳੑ w ΞϓϦΠϯϑϥͷ֞ࠜΛ௒͑ͯΈΔྑ͍͖͔͚ͬʹͳΔ͔΋͠Εͳ͍ ‣ ʮఆٛΛॻ͍͍ͯΔʯ͔ΒʮίʔσΟϯάΛ͍ͯ͠Δʯͱ͍͏࣮ײ΁ͷมԽ ‣ ίʔσΟϯάָ͕͘͠ͳΔɾ։ൃʹڵຯ͕ग़Δ͔΋͠Εͳ͍ w ޻෉࣍ୈͰίʔυΛݟ΍ͨ͘͢͠ΓɺอकίετΛԼ͛ΒΕΔ͔΋͠Εͳ͍ ‣ ೝ஌ෛՙ͕Լ͕ͬͨΓ ‣ มߋ࣌ͷίʔυमਖ਼ྔ͕ݮͬͨΓ ैདྷͷΠϯϑϥఆٛͷ࿮ʹनΘΕ͗͢ͳͯ͘΋͍͍Μ͡Όͳ͍͔ʁ

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$%,º(P'σβΠϯύλʔϯͷՄೳੑ w ϧʔϧΛܾΊͯΠϯϑϥఆ͔ٛΒҳ୤͠ա͗ͳ͍Α͏ʹ w ैདྷͷએݴతͳΠϯϑϥఆٛΛ௒͑Δ෦෼͸ɺϓϩάϥϛϯάݴޠͳΒͰ͸ ͷࣗಈςετͰΧόʔ ‣ 6OJU5FTU 4OBQTIPU5FTU 'JOFHSBJOFE"TTFSUJPOT5FTU 7BMJEBUJPO5FTU ‣ *OUFHSBUJPO5FTU JOUFHUFTUTBMQIB

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$%,ͰͷΦεεϝύλʔϯબ ᶃ $PNQPTJUFύλʔϯ ᶄ 5FNQMBUF.FUIPEύλʔϯ ᶅ "CTUSBDU'BDUPSZύλʔϯ $%,ͳΒͰ͸ͷπϦʔߏ଄ Λ׆͔ͯ͠ޮ཰Խ ؀ڥؒ EFWcQSPE ͷࠩҟΛ࣮ݱ ɾ؀ڥ͝ͱͷݟ௨͕͠ྑ͘ͳΔ ɾ৚݅෼ذΛݮΒͤΔ ɾڞ௨෦෼͸ڞ௨Խͯ͠ޮ཰తʹ ͓·͚ɿ'BDBEFύλʔϯ$POTUSVDU

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ࢀߟɿᶃ$PNQPTJUFύλʔϯ

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ࢀߟɿᶄ5FNQMBUF.FUIPEύλʔϯ

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ࢀߟɿᶄ5FNQMBUF.FUIPEύλʔϯ ؀ڥ͝ͱʹॊೈʹόϦσʔγϣϯ಺༰Λม͑Δʂ ৚݅෼ذ΋࠷খʂ

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ࢀߟɿᶅ"CTUSBDU'BDUPSZύλʔϯ

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ࢀߟɿᶅ"CTUSBDU'BDUPSZύλʔϯ

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ࢀߟɿᶅ"CTUSBDU'BDUPSZύλʔϯ ؀ڥ͝ͱʹॊೈʹߏஙϦιʔεΛม͑Δʂ ৚݅෼ذ΋࠷খʂ

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$%,಺෦Ͱ࢖ΘΕ͍ͯΔύλʔϯ ᶃ 4JOHMFUPOύλʔϯ ‣ 4JOHMFUPO'VODUJPOίϯετϥΫτ ᶄ 4USBUFHZύλʔϯ ‣ 7BMJEBUJPOػೳ /PEFWBMJEBUF ᶅ 7JTJUPSύλʔϯ ‣ "TQFDUTػೳ ৄࡉ͸"84%FW%BZ5PLZP ʰ"84$%,ͰֶͿ(P'σβΠϯύλʔϯ ʙ*B$ʹ΋ίʔυઃܭʙʱ ొஃࢿྉʹͯʂ ˞ຊࢿྉ࠷ޙʹϦϯΫهࡌ

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࠷ޙʹ w "84$%,ͷՄೳੑ͸ແݶେ ‣ ৽͍͠ɾࣗ༝౓͕ߴ͍ނʹϕετϓϥΫςΟε͕ݻ·Γ͖͍ͬͯͳ͍ ͦ΋ͦ΋͜ͷ(P'σβΠϯύλʔϯద༻Έ͍ͨʹɺ·ͩྫ͕ग़͍ͯͳ͔ͬͨΓ ‣ πʔϧͱͯ͠΋ΤϯδχΞͱͯ͠΋৳ͼ͠Ζ͕͋Δʂ $%,ͷ৽ͨͳ࢖͍ํΛฤΈग़͢νϟϯεʂ ීஈΠϯϑϥدΓͷਓ΋ΞϓϦ։ൃɾίʔσΟϯάʹ৮ΕͯΈΔྑ͍ػձ͔΋ʂ "84$%,Λ࢖͍౗͍ͯ͜͠͏ʂ ༻๏ɾ༻ྔ͸कͬͯͶ (P'΋ ͋Γ͔΋ʁ

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ࢀߟɿ"84%FW%BZొஃࢿྉɾ(JU)VC "84%FW%BZ5PLZP ొஃࢿྉ ࠨɿIUUQTTQFBLFSEFDLDPNHPUPLBXTEFWEBZDELHPGEFTJHOQBUUFSOT $%,º(P'ίʔυ࣮ྫɾΫϥεਤ (JU)VC ӈɿIUUQTHJUIVCDPNHPUPLDELHPGEFTJHOQBUUFSO

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એ఻ɿࣗ࡞"84πʔϧ044 ʲEFMTUBDLʳ"84$MPVE'PSNBUJPOελοΫڧ੍࡟আπʔϧ ‣ IUUQTHPUPLIBUFOBCMPHDPNFOUSZEFMTUBDL ʲDMTʳ4όέοτߴ଎࡟আɾۭʹ͢Δπʔϧ όʔδϣχϯάରԠ ‣ IUUQTHPUPLIBUFOBCMPHDPNFOUSZDMT ʲMBNWFSʳ-BNCEBϥϯλΠϜόʔδϣϯݕࡧπʔϧ Ϧʔδϣϯԣஅ ‣ IUUQTHPUPLIBUFOBCMPHDPNFOUSZMBNWFS

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5IBOL:PV LHPUP าͷςοΫ