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4DBMBͰ΢Σϒ"1*Λॻ͍͍ͯΔਓ͕ ઃܭ΍࣮૷΍ͦͷଞʹ͍ͭͯ࿩ͦ͏͔ JO:TQSJOHJO4IJCVZB

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ࣗݾ঺հ ໊લͨͬ͘Μ w (JU)VCUBLLLVO w 5XJUUFSUBLLLVOʢΞΠίϯ͸ˠʣ ॴଐגࣜձࣾϝσΟϩϜ ۀ຿4DBMBͰαʔόαΠυશൠ

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IUUQTHJUIVCDPNUBLLLVOZTBNQMFBQQ

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ΞʔΩςΫνϟ

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ΞʔΩςΫνϟͷ࡞༻ w ΞϓϦέʔγϣϯʹ͸༷ʑͳؔ৺͕͋Δ w ղܾ͍ͨ͠໰୊ʹର͢Δॲཧͦͷ΋ͷʢػೳཁ݅ʣ w ೖྗํࣜ w ग़ྗํࣜ w ӬଓԽ w FUD w ۪௚ʹॻ͍ͯ͸ؔ৺͕ࠞ͟Γ߹͏ w ؔ৺Λ෼ׂ͢Δ͜ͱ͕େࣄɻΞʔΩςΫνϟ͸ͦͷͨΊͷख๏

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ϨΠϠʔυΞʔΩςΫνϟ ϓϨθϯςʔγϣϯ૚ ΞϓϦέʔγϣϯ૚ υϝΠϯ૚ ΠϯϑϥετϥΫνϟ૚ ֤૚ͷґଘؔ܎ "ˠ#"͸#ʹґଘ͢Δ

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֤૚ͷґଘؔ܎ "ˠ#"͸#ʹґଘ͢Δ ͢΂ͯͷ૚͕ΠϯϑϥετϥΫνϟ૚ ʹґଘ͍ͯ͠Δɻ͜͏ͳ͍ͬͯΔͱ w ΠϯϑϥετϥΫνϟ૚ͷ౎߹ʹҾ ͖ͣΒΕΔ w ςετ࣌ʹΠϯϑϥετϥΫνϟ૚ Λ४උ͢Δඞཁ͕͋Δ ϨΠϠʔυΞʔΩςΫνϟ ϓϨθϯςʔγϣϯ૚ ΞϓϦέʔγϣϯ૚ υϝΠϯ૚ ΠϯϑϥετϥΫνϟ૚

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ґଘؔ܎ٯసͷݪଇʢ%*1ʣ ఻౷తͳϨΠϠʔυΞʔΩςΫνϟ υϝΠϯ૚͕ΠϯϑϥετϥΫνϟ૚ Λ௚઀ར༻ υϝΠϯ૚ ΠϯϑϥετϥΫνϟ૚

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ґଘؔ܎ٯసͷݪଇʢ%*1ʣ ఻౷తͳϨΠϠʔυΞʔΩςΫνϟ υϝΠϯ૚͕ΠϯϑϥετϥΫνϟ૚ Λ௚઀ར༻ υϝΠϯ૚ ΠϯϑϥετϥΫνϟ૚ %*1ʹΑΔϨΠϠʔυΞʔΩςΫνϟ υϝΠϯ૚ͰinterfaceΛఆٛ͠ ͦΕΛΠϯϑϥετϥΫνϟ૚Ͱ ࣮૷ υϝΠϯ૚ ΠϯϑϥετϥΫνϟ૚

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੔ཧ͞ΕͨϨΠϠʔυΞʔΩςΫνϟ ΠϯϑϥετϥΫνϟ૚ ϓϨθϯςʔγϣϯ૚ ΞϓϦέʔγϣϯ૚ υϝΠϯ૚

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੔ཧ͞ΕͨϨΠϠʔυΞʔΩςΫνϟ ΠϯϑϥετϥΫνϟ૚ ϓϨθϯςʔγϣϯ૚ ΞϓϦέʔγϣϯ૚ υϝΠϯ૚ IUUQTUIMJHIUDPNCMPHVODMFCPCUIFDMFBO BSDIJUFDUVSFIUNM

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υϝΠϯ૚

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ؔ৺Λ੔ཧ ٕज़ͷؔ৺ w σʔλετΞ͸1PTUHSF42- w ੩తϑΝΠϧ͸"NB[PO4 w ϦΫΤετ͸)551Ͱड͚෇͚Δ w FUD ۀ຿ͷؔ৺ w λΠτϧΛࢦఆͯ͠λεΫΛ࡞Δ w λεΫΛऴྃ͢Δ w λεΫ͕ऴྃࡁΈͷ৔߹͸Τϥʔ w FUD

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ؔ৺Λ੔ཧ ٕज़ͷؔ৺ w σʔλετΞ͸1PTUHSF42- w ੩తϑΝΠϧ͸"NB[PO4 w ϦΫΤετ͸)551Ͱड͚෇͚Δ w FUD Ϗδωε্ͷ֓೦΍ϧʔϧ ۀ຿ͷؔ৺ w λΠτϧΛࢦఆͯ͠λεΫΛ࡞Δ w λεΫΛऴྃ͢Δ w λεΫ͕ऴྃࡁΈͷ৔߹͸Τϥʔ w FUD

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υϝΠϯۦಈઃܭʢ%%%ʣ w ΞϓϦέʔγϣϯͷؔ܎ऀʢղܾ͍ͨ͠໰୊ͷઐ໳ՈυϝΠϯΤΩεύʔ τɺ։ൃऀɺFUDʣશһͷڞ௨ݴޠͱͳΔϢϏΩλεݴޠΛཱ֬ w ϢϏΩλεݴޠΛ༻͍ͯϏδωε্ͷ֓೦΍ϧʔϧΛϞσϦϯάʢυϝΠϯ Ϟσϧʣ w υϝΠϯϞσϧΛίʔυʹ൓ө͢Δ͜ͱͰɺݴޠͱϞσϧͱίʔυ͕࿈ಈ

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υϝΠϯۦಈઃܭʢ%%%ʣ w ΞϓϦέʔγϣϯͷؔ܎ऀʢղܾ͍ͨ͠໰୊ͷઐ໳ՈυϝΠϯΤΩεύʔ τɺ։ൃऀɺFUDʣશһͷڞ௨ݴޠͱͳΔϢϏΩλεݴޠΛཱ֬ w ϢϏΩλεݴޠΛ༻͍ͯϏδωε্ͷ֓೦΍ϧʔϧΛϞσϦϯάʢυϝΠϯ Ϟσϧʣ w υϝΠϯϞσϧΛίʔυʹ൓ө͢Δ͜ͱͰɺݴޠͱϞσϧͱίʔυ͕࿈ಈ ্هΛ܁Γฦ͠ߦ͍ɺΑΓ༗༻ͳϞσϧΛखʹೖΕΔ

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υϝΠϯϞσϧΛදݱ͢Δཁૉ w ஋ΦϒδΣΫτ w ΤϯςΟςΟ w αʔϏε w ϦϙδτϦ w ϑΝΫτϦ w ू໿ w υϝΠϯΠϕϯτ

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υϝΠϯϞσϧΛදݱ͢Δཁૉ w ஋ΦϒδΣΫτ w ΤϯςΟςΟ w αʔϏε w ϦϙδτϦ w ϑΝΫτϦ w ू໿ w υϝΠϯΠϕϯτ

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஋ΦϒδΣΫτ w υϝΠϯͷ֓೦Λදͨ͢ΊͷෆՄ෼ͳଐੑͷू߹ w ྫ͑͹ʮλΠτϧʯͻͱͭͷଐੑ͔࣋ͨ͠ͳ͍͕ɺυϝΠϯͷ֓೦Λද͢ ͨΊʹ஋ΦϒδΣΫτΛར༻ w ྫ͑͹ʮ੏໊ʯ੏ͱ໊ɺ;ͨͭͷଐੑ͕͋ͬͯ࢝Ίͯ੒Γཱͭ

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஋ΦϒδΣΫτͷಛ௃ ෆม ஋ΦϒδΣΫτΛ࡞੒ͨ͠ޙʹॴ༗͢ΔଐੑΛมߋ͢Δ͜ͱ͕ग़དྷͳ͍ɻ ଐੑʹΑΔ౳Ձ ผͷ஋ΦϒδΣΫτͱൺ΂ͨͱ͖ɺॴ༗͢ΔଐੑͦΕͧΕ͕౳ՁͰ͋Δ৔߹ ʹ஋ΦϒδΣΫτͦͷ΋ͷ͕౳ՁͰ͋ΔͱΈͳ͢ɻ

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έʔεΫϥεͷར༻ w GBNJMZ/BNF HJWFO/BNFΛ֎෦ʹॻ͖׵͑ෆՄೳͳܗͰެ։ w GBNJMZ/BNF HJWFO/BNFͦΕͧΕ͕౳Ձͷ৔߹ʹΦϒδΣΫτࣗମ͕౳Ձ ͱͳΔΑ͏FRVBMT IBTI$PEFΛΦʔόϥΠυ w DPQZϝιουΛఆٛ w /BNFΦϒδΣΫτʹBQQMZΛఆٛʢOFXͳ͠ͷΠϯελϯεੜ੒ʣ w /BNFΦϒδΣΫτʹVOBQQMZΛఆٛʢύλʔϯϚον΁ͷར༻ʣ w FUD case class Name(familyName: String, givenName: String)

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έʔεΫϥεͷར༻ w GBNJMZ/BNF HJWFO/BNFΛ֎෦ʹॻ͖׵͑ෆՄೳͳܗͰެ։ w GBNJMZ/BNF HJWFO/BNFͦΕͧΕ͕౳Ձͷ৔߹ʹΦϒδΣΫτࣗମ͕౳Ձ ͱͳΔΑ͏FRVBMT IBTI$PEFΛΦʔόϥΠυ w DPQZϝιουΛఆٛ w /BNFΦϒδΣΫτʹBQQMZΛఆٛʢOFXͳ͠ͷΠϯελϯεੜ੒ʣ w /BNFΦϒδΣΫτʹVOBQQMZΛఆٛʢύλʔϯϚον΁ͷར༻ʣ w FUD ஋ΦϒδΣΫτͷʮෆมʯͱʮଐੑʹΑΔ౳Ձʯɺ;ͨͭͷੑ࣭Λຬͨ͢ case class Name(familyName: String, givenName: String)

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έʔεΫϥεͷར༻ w GBNJMZ/BNF HJWFO/BNFΛ֎෦ʹॻ͖׵͑ෆՄೳͳܗͰެ։ w GBNJMZ/BNF HJWFO/BNFͦΕͧΕ͕౳Ձͷ৔߹ʹΦϒδΣΫτࣗମ͕౳Ձ ͱͳΔΑ͏FRVBMT IBTI$PEFΛΦʔόϥΠυ w DPQZϝιουΛఆٛ w /BNFΦϒδΣΫτʹBQQMZΛఆٛʢOFXͳ͠ͷΠϯελϯεੜ੒ʣ w /BNFΦϒδΣΫτʹVOBQQMZΛఆٛʢύλʔϯϚον΁ͷར༻ʣ w FUD case class Name(familyName: String, givenName: String) ֎෦ʹରͯ͠ෆཁͳΠϯλϑΣʔεΛ࢈Ή

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஋ΦϒδΣΫτͷఆٛྫ sealed trait Name { def familyName: String def givenName: String } private case class NameImpl( familyName: String, givenName: String ) extends Name object Name { def apply(familyName: String, givenName: String): Name = NameImpl(familyName, givenName) }

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஋ΦϒδΣΫτͷఆٛྫ sealed trait Name { def familyName: String def givenName: String } private case class NameImpl( familyName: String, givenName: String ) extends Name object Name { def apply(familyName: String, givenName: String): Name = NameImpl(familyName, givenName) } /BNF͸TFBMFEUSBJUͰఆٛ TFBMFEम০ࢠ/BNF͕ఆٛ͞ΕͨϑΝΠϧҎ֎Ͱͷܧঝېࢭ

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஋ΦϒδΣΫτͷఆٛྫ sealed trait Name { def familyName: String def givenName: String } private case class NameImpl( familyName: String, givenName: String ) extends Name object Name { def apply(familyName: String, givenName: String): Name = NameImpl(familyName, givenName) } /BNFΛܧঝͨ͠έʔεΫϥεΛఆٛ

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஋ΦϒδΣΫτͷఆٛྫ sealed trait Name { def familyName: String def givenName: String } private case class NameImpl( familyName: String, givenName: String ) extends Name object Name { def apply(familyName: String, givenName: String): Name = NameImpl(familyName, givenName) } /BNFܕͰ/BNF*NQMΫϥεͷΠϯελϯεΛฦ͢ ࣮ଶ͸/BNF*NQMΫϥεͳͷͰέʔεΫϥεͷಛੑΛ͕࣋ͭɺܕͱͯ͠͸/BNFܕͳͷͰɺ DPQZϝιουͳͲΛݺͼग़͢͜ͱ͸ग़དྷͳ͍

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ΤϯςΟςΟ w ஋ΦϒδΣΫτͱಉ༷υϝΠϯͷ֓೦Λදͨ͠΋ͷ w ඞͣࣝผࢠΛ࣋ͭ w ஋ΦϒδΣΫτͱൺ΂ͯ w Մมʢଐੑ͸มΘΓಘΔʣ w ࣝผࢠಉ͕࢜౳ՁͰ͋Ε͹ɺͦͷଞଐੑʹؔΘΒͣΤϯςΟςΟಉ࢜͸ಉ ҰͰ͋ΔͱΈͳ͢ w ྫ͑͹ʮλεΫʯλεΫ͕ऴྃͨ͠ͱͯ͠΋ɺݩͷλεΫͱ͸ಉҰͷଘࡏ Ͱ͋Δ

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ΤϯςΟςΟͷϕʔε trait Entity[ID] { def id: ID override def equals(obj: Any): Boolean = obj match { case that: Entity[_] => id == that.id case _ => false } override def hashCode(): Int = 31 * id.## }

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ΤϯςΟςΟͷϕʔε trait Entity[ID] { def id: ID override def equals(obj: Any): Boolean = obj match { case that: Entity[_] => id == that.id case _ => false } override def hashCode(): Int = 31 * id.## } ࣝผࢠJEΛ࣋ͪɺͦͷܕΛද͢*%ܕύϥϝʔλΛड͚औΔ

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ΤϯςΟςΟͷϕʔε trait Entity[ID] { def id: ID override def equals(obj: Any): Boolean = obj match { case that: Entity[_] => id == that.id case _ => false } override def hashCode: Int = 31 * id.## } JEʹΑͬͯFRVBMTͱIBTI$PEFΛΦʔόϥΠυ

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ΤϯςΟςΟͷఆٛྫ case class TaskId(value: UUID) class Task( val id: TaskId, val title: TaskTitle, val createdAt: DateTime, val finishedAt: Option[DateTime] ) extends Entity[TaskId] { def isFinished: Boolean = finishedAt.nonEmpty def finish(): Task = { if (isFinished) { throw new TaskAlreadyFinished(this) } new Task(id, title, createdAt, Some(DateTime.now)) } }

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case class TaskId(value: UUID) class Task( val id: TaskId, val title: TaskTitle, val createdAt: DateTime, val finishedAt: Option[DateTime] ) extends Entity[TaskId] { def isFinished: Boolean = finishedAt.nonEmpty def finish(): Task = { if (isFinished) { throw new TaskAlreadyFinished(this) } new Task(id, title, createdAt, Some(DateTime.now)) } } ΤϯςΟςΟͷఆٛྫ ࣝผࢠͱͳΔ5BTL*EΛ஋ΦϒδΣΫτͱͯ͠ఆٛ

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case class TaskId(value: UUID) class Task( val id: TaskId, val title: TaskTitle, val createdAt: DateTime, val finishedAt: Option[DateTime] ) extends Entity[TaskId] { def isFinished: Boolean = finishedAt.nonEmpty def finish(): Task = { if (isFinished) { throw new TaskAlreadyFinished(this) } new Task(id, title, createdAt, Some(DateTime.now)) } } ΤϯςΟςΟͷఆٛྫ &OUJUZ<5BTL*E>Λܧঝ͠ɺΤϯςΟςΟͷಛੑΛ࣋ͨͤΔ

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case class TaskId(value: UUID) class Task( val id: TaskId, val title: TaskTitle, val createdAt: DateTime, val finishedAt: Option[DateTime] ) extends Entity[TaskId] { def isFinished: Boolean = finishedAt.nonEmpty def finish(): Task = { if (isFinished) { throw new TaskAlreadyFinished(this) } new Task(id, title, createdAt, Some(DateTime.now)) } } ΤϯςΟςΟͷఆٛྫ 5BTL͕࣋ͭଐੑΛఆٛ

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case class TaskId(value: UUID) class Task( val id: TaskId, val title: TaskTitle, val createdAt: DateTime, val finishedAt: Option[DateTime] ) extends Entity[TaskId] { def isFinished: Boolean = finishedAt.nonEmpty def finish(): Task = { if (isFinished) { throw new TaskAlreadyFinished(this) } new Task(id, title, createdAt, Some(DateTime.now)) } } ΤϯςΟςΟͷఆٛྫ มߋ͢ΔଐੑΛઃఆͨ͠৽ͨͳΤϯςΟςΟΛฦ͢

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ࣝผࢠʹؔ͢Δཹҙࣄ߲ w ࣝผࢠ͸ඞͣӬଓԽΑΓ΋લʹఆ·ΔΑ͏ʹ͢Δ w 3%#ͷΦʔτΠϯΫϦϝϯτͳ஋Λࣝผࢠͱ͢ΔͱɺϨίʔυͷૠೖΛ͢ Δ·Ͱࣝผࢠ͕ఆ·Βͳ͍ӬଓԽͷλΠϛϯάͰ͔͠ΤϯςΟςΟΛ࡞ ੒Ͱ͖ͳ͍ w ଐੑͷதʹࣝผࢠͱͯ͠ػೳ͢Δ΋ͷʢྫ͑͹ϝʔϧΞυϨε͕શϢʔβ಺ ͰҰҙͰมߋ͞Εͳ͍ͳΒ֘౰͢Δʣ͕͋ΔͳΒͦΕΛ࠾༻ w ͦ͏Ͱͳ͍ͳΒ66*%Λ༻͍Δ

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αʔϏε w ஋ΦϒδΣΫτ΍ΤϯςΟςΟʹॲཧΛ࣋ͨͤΔʹ͸ෆࣗવͳͱ͖ʹ༻͍ Δ w ؔ࿈͠ͳ͍஋ΦϒδΣΫτ΍ΤϯςΟςΟɺͦΕΒͷίϨΫγϣϯΛॲཧ͢ ΔͨΊʹ༻͍Δ w ͋·Γଟ༻͢ΔͱυϝΠϯϞσϧශ݂঱ʹؕΔ w ٕज़తৄࡉʹґଘ͢Δ৔߹ɺηύϨʔτΠϯλϑΣʔεʹ͢Δ

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αʔϏεͷఆٛྫ trait NotifyTaskCreationService { def apply(task: Task): Unit } υϝΠϯϞσϧ͕ٻΊΔΠϯλϑΣʔεͷΈఆٛ

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ϦϙδτϦ w ΤϯςΟςΟʢ·ͨ͸ͦΕΒΛͱΓ·ͱΊͨू໿ʣΛӬଓԽ͢Δ໾ׂ w ࣝผࢠʹΑΔऔΓग़͠Ҏ֎ʹઐ༻ͷΫΤϦ͕͋ͬͯ΋ߏΘͳ͍ w ΋Ζʹٕज़తৄࡉʹґଘ͢ΔͷͰɺαʔϏεͱಉ༷ʹηύϨʔτΠϯλ ϑΣʔεʹ͢Δ

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ϦϙδτϦͷఆٛྫ trait Repository[ID, E <: Entity[ID], X] { def find(id: ID)(implicit context: X): Option[E] def store(entity: E)(implicit context: X): Unit } trait TaskRepository[X] extends Repository[TaskId, Task, X] { def findAllByCreatedAtRange( start: DateTime, end: DateTime )(implicit context: X): Seq[Task] }

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ϦϙδτϦͷఆٛྫ trait Repository[ID, E <: Entity[ID], X] { def find(id: ID)(implicit context: X): Option[E] def store(entity: E)(implicit context: X): Unit } trait TaskRepository[X] extends Repository[TaskId, Task, X] { def findAllByCreatedAtRange( start: DateTime, end: DateTime )(implicit context: X): Seq[Task] } ֤ϦϙδτϦͷϕʔετϨΠτΛఆٛ *%ࣝผࢠͷܕ &ΤϯςΟςΟͷܕ 9ϦϙδτϦ༻ίϯςΩετͷܕ

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ϦϙδτϦͷఆٛྫ trait Repository[ID, E <: Entity[ID], X] { def find(id: ID)(implicit context: X): Option[E] def store(entity: E)(implicit context: X): Unit } trait TaskRepository[X] extends Repository[TaskId, Task, X] { def findAllByCreatedAtRange( start: DateTime, end: DateTime )(implicit context: X): Seq[Task] } ֤ϦϙδτϦʹڞ௨ͷΠϯλϑΣʔεΛఆٛ

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ϦϙδτϦͷఆٛྫ trait Repository[ID, E <: Entity[ID], X] { def find(id: ID)(implicit context: X): Option[E] def store(entity: E)(implicit context: X): Unit } trait TaskRepository[X] extends Repository[TaskId, Task, X] { def findAllByCreatedAtRange( start: DateTime, end: DateTime )(implicit context: X): Seq[Task] } ϕʔετϨΠτʹࣝผࢠͱΤϯςΟςΟͷܕΛ༩͑ͯܧঝ 9͸࣮૷ґଘͳͷͰ͜͜Ͱ͸ܾఆ͠ͳ͍

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ϦϙδτϦͷఆٛྫ trait Repository[ID, E <: Entity[ID], X] { def find(id: ID)(implicit context: X): Option[E] def store(entity: E)(implicit context: X): Unit } trait TaskRepository[X] extends Repository[TaskId, Task, X] { def findAllByCreatedAtRange( start: DateTime, end: DateTime )(implicit context: X): Seq[Task] } ϦϙδτϦݻ༗ͷΫΤϦ͕͋Ε͹ϝιουͱͯ͠ఆٛ

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%%%΁ͷऔΓ૊Έ w ࣮ફυϝΠϯۦಈઃܭʢ*%%%ʣΛνʔϜͰྠಡ͠ɺ%%%ͷ஌ࣝΛڞ༗ w िͷఆྫϛʔςΟϯάͰϢϏΩλεݴޠΛৼΓฦΓ w ͔͠͠༗༻ͳυϝΠϯϞσϧͷ֫ಘ͸·ͩ·ͩ೉͍͠ w ղܾ͢Δ໰୊΁ͷཧղ w ϞσϦϯά΁ͷཧղ w %%%΁ͷཧղ w ಉ࣌ʹίʔυϨϕϧͷઃܭ΋໛ࡧத

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υϝΠϯͱ޲͖߹͍ͬͯ͘ w %%%ͱ޲͖߹͍͔ͬͯ͘͠ͳ͍ɻগͣͭ͠Ͱ΋औΓ૊ΊΔ w ౰વυϝΠϯʢղܾ͍ͨ͠໰୊ɺۀ຿ʣͱ΋޲͖߹͍ͬͯ͘ w %%%͸໨తͰ͸ͳ͘खஈɻϏδωε΁ͷߩݙ͕໨త

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ΞϓϦέʔγϣϯ૚

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ΞϓϦέʔγϣϯ૚ͷ໾ׂ w ΞϓϦέʔγϣϯ͕͍࣋ͬͯͳ͖Ό͍͚ͳ͍ৼ෣͍ͷఏڙ w υϝΠϯ૚ͷΦϒδΣΫτΛར༻ͯ͠ৼ෣͍Λ࣮ݱ w ͋͘·ͰΞϓϦέʔγϣϯͷৼ෣͍Ͱ͋Γɺ࣮ࡍͷ஌ࣝ΍ϧʔϧ͸υϝΠ ϯ૚ʹ͋ΔͨΊɺ͜ͷ૚͸ඇৗʹബ͘ͳΔɻ൓ରʹް͘ͳΔͱυϝΠϯ૚ ʹ͋Δ΂͖΋ͷ͕࿙Ε͍ͯΔલஹ w ඞཁʹԠͯ͡ηΩϡϦςΟ΍τϥϯβΫγϣϯͷ੍ޚΛߦ͏͜ͱ΋

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ΞϓϦέʔγϣϯαʔϏεͷఆٛྫ class FinishTaskCommand(val id: TaskId) class FinishTaskApplicationService() { val taskRepo: TaskRepository[DBSession] = new JDBCTaskRepository() // TaskRepository[DBSession] の実装クラス def apply(command: FinishTaskCommand): Task = DB.localTx { implicit session => val task = taskRepo.find(command.id).getOrElse( throw new TaskNotFound(command.id) ) val finishedTask = task.finish() taskRepo.store(finishedTask) finishedTask } }

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ΞϓϦέʔγϣϯαʔϏεͷఆٛྫ class FinishTaskCommand(val id: TaskId) class FinishTaskApplicationService() { val taskRepo: TaskRepository[DBSession] = new JDBCTaskRepository() // TaskRepository[DBSession] の実装クラス def apply(command: FinishTaskCommand): Task = DB.localTx { implicit session => val task = taskRepo.find(command.id).getOrElse( throw new TaskNotFound(command.id) ) val finishedTask = task.finish() taskRepo.store(finishedTask) finishedTask } } ΞϓϦέʔγϣϯαʔϏε΁ͷೖྗͱͳΔΫϥεΛఆٛ

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ΞϓϦέʔγϣϯαʔϏεͷఆٛྫ class FinishTaskCommand(val id: TaskId) class FinishTaskApplicationService() { val taskRepo: TaskRepository[DBSession] = new JDBCTaskRepository() // TaskRepository[DBSession] の実装クラス def apply(command: FinishTaskCommand): Task = DB.localTx { implicit session => val task = taskRepo.find(command.id).getOrElse( throw new TaskNotFound(command.id) ) val finishedTask = task.finish() taskRepo.store(finishedTask) finishedTask } } ΞϓϦέʔγϣϯαʔϏεΛఆٛ

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ΞϓϦέʔγϣϯαʔϏεͷఆٛྫ class FinishTaskCommand(val id: TaskId) class FinishTaskApplicationService() { val taskRepo: TaskRepository[DBSession] = new JDBCTaskRepository() // TaskRepository[DBSession] の実装クラス def apply(command: FinishTaskCommand): Task = DB.localTx { implicit session => val task = taskRepo.find(command.id).getOrElse( throw new TaskNotFound(command.id) ) val finishedTask = task.finish() taskRepo.store(finishedTask) finishedTask } } 'JOJTI5BTL$PNNBOEΛड͚औΓ5BTLΛฦ͢ϝιουΛఆٛ͠

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ΞϓϦέʔγϣϯαʔϏεͷఆٛྫ class FinishTaskCommand(val id: TaskId) class FinishTaskApplicationService() { val taskRepo: TaskRepository[DBSession] = new JDBCTaskRepository() // TaskRepository[DBSession] の実装クラス def apply(command: FinishTaskCommand): Task = DB.localTx { implicit session => val task = taskRepo.find(command.id).getOrElse( throw new TaskNotFound(command.id) ) val finishedTask = task.finish() taskRepo.store(finishedTask) finishedTask } } τϥϯβΫγϣϯΛ։࢝͠

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ΞϓϦέʔγϣϯαʔϏεͷఆٛྫ class FinishTaskCommand(val id: TaskId) class FinishTaskApplicationService() { val taskRepo: TaskRepository[DBSession] = new JDBCTaskRepository() // TaskRepository[DBSession] の実装クラス def apply(command: FinishTaskCommand): Task = DB.localTx { implicit session => val task = taskRepo.find(command.id).getOrElse( throw new TaskNotFound(command.id) ) val finishedTask = task.finish() taskRepo.store(finishedTask) finishedTask } } 5BTL3FQPTJUPSZ͔Βର৅ͷλεΫΛऔΓग़͠

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ΞϓϦέʔγϣϯαʔϏεͷఆٛྫ class FinishTaskCommand(val id: TaskId) class FinishTaskApplicationService() { val taskRepo: TaskRepository[DBSession] = new JDBCTaskRepository() // TaskRepository[DBSession] の実装クラス def apply(command: FinishTaskCommand): Task = DB.localTx { implicit session => val task = taskRepo.find(command.id).getOrElse( throw new TaskNotFound(command.id) ) val finishedTask = task.finish() taskRepo.store(finishedTask) finishedTask } } ͦͷλεΫΛऴྃͤ͞

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ΞϓϦέʔγϣϯαʔϏεͷఆٛྫ class FinishTaskCommand(val id: TaskId) class FinishTaskApplicationService() { val taskRepo: TaskRepository[DBSession] = new JDBCTaskRepository() // TaskRepository[DBSession] の実装クラス def apply(command: FinishTaskCommand): Task = DB.localTx { implicit session => val task = taskRepo.find(command.id).getOrElse( throw new TaskNotFound(command.id) ) val finishedTask = task.finish() taskRepo.store(finishedTask) finishedTask } } 5BTL3FQPTJUPSZΛ༻͍ͯλεΫͷมߋΛӬଓԽ͢Δ

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ΞϓϦέʔγϣϯαʔϏεͷఆٛྫ class FinishTaskCommand(val id: TaskId) class FinishTaskApplicationService() { val taskRepo: TaskRepository[DBSession] = new JDBCTaskRepository() // TaskRepository[DBSession] の実装クラス def apply(command: FinishTaskCommand): Task = DB.localTx { implicit session => val task = taskRepo.find(command.id).getOrElse( throw new TaskNotFound(command.id) ) val finishedTask = task.finish() taskRepo.store(finishedTask) finishedTask } }

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ΞϓϦέʔγϣϯαʔϏεͷఆٛྫ class FinishTaskCommand(val id: TaskId) class FinishTaskApplicationService() { val taskRepo: TaskRepository[DBSession] = new JDBCTaskRepository() // TaskRepository[DBSession] の実装クラス def apply(command: FinishTaskCommand): Task = DB.localTx { implicit session => val task = taskRepo.find(command.id).getOrElse( throw new TaskNotFound(command.id) ) val finishedTask = task.finish() taskRepo.store(finishedTask) finishedTask } } UBTL3FQPʹର࣮ͯ͠૷ΫϥεΛ୅ೖͯ͠͠·͍ͬͯΔ͍ͤͰɺΞϓϦ έʔγϣϯαʔϏεશମ͕ٕज़తৄࡉʹґଘɻ%*͠·͠ΐ͏

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ίϚϯυͱΫΤϦ ΫΤϦ w σʔλΛࢀর͢Δ΋ͷ w σʔλΛมߋͯ͠͸͍͚ͳ͍ʢ$24ʣ w ࢀর͢Δ಺༰͸ΫϥΠΞϯτʹද ࣔ͢Δը໘ͷཁૉʹґଘ͢Δ ίϚϯυ w σʔλͳͲʹ࡞༻Λٴ΅͢΋ͷ w ʮσʔλ͕Ͳ͏มߋ͞ΕΔ͔ʯͱ ͍͏ͷ͸Ϗδωε্ͷ֓೦΍ϧʔ ϧʹଇΔ

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ίϚϯυͱΫΤϦ ΫΤϦ w σʔλΛࢀর͢Δ΋ͷ w σʔλΛมߋͯ͠͸͍͚ͳ͍ʢ$24ʣ w ࢀর͢Δ಺༰͸ΫϥΠΞϯτʹද ࣔ͢Δը໘ͷཁૉʹґଘ͢Δ ίϚϯυ w σʔλͳͲʹ࡞༻Λٴ΅͢΋ͷ w ʮσʔλ͕Ͳ͏มߋ͞ΕΔ͔ʯͱ ͍͏ͷ͸Ϗδωε্ͷ֓೦΍ϧʔ ϧʹଇΔ ඞͣυϝΠϯΦϒδΣΫτΛར༻

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ίϚϯυͱΫΤϦ ΫΤϦ w σʔλΛࢀর͢Δ΋ͷ w σʔλΛมߋͯ͠͸͍͚ͳ͍ʢ$24ʣ w ࢀর͢Δ಺༰͸ΫϥΠΞϯτʹද ࣔ͢Δը໘ͷཁૉʹґଘ͢Δ ίϚϯυ w σʔλͳͲʹ࡞༻Λٴ΅͢΋ͷ w ʮσʔλ͕Ͳ͏มߋ͞ΕΔ͔ʯͱ ͍͏ͷ͸Ϗδωε্ͷ֓೦΍ϧʔ ϧʹଇΔ ௚઀σʔλετΞ͔Βࢀর

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ΫΤϦ༻ΞϓϦέʔγϣϯαʔϏεͷఆٛྫ class GetTaskStatisticsQuery() case class GetTaskStatisticsDto( numberOfTasks: Int, numberOfUnfinishedTasks: Int, numberOfFinishedTasks: Int ) class GetTaskStatisticsApplicationService() { def apply(query: GetTaskStatisticsQuery): GetTaskStatisticsDto = DB.readOnly { implicit session => sql"""SELECT COUNT(*), COUNT(finished_at) FROM tasks""".map { rs => val numberOfTasks = rs.int(1) val numberOfFinishedTasks = rs.int(2) GetTaskStatisticsDto( numberOfTasks, numberOfTasks - numberOfFinishedTasks, numberOfFinishedTasks ) }.single.apply.getOrElse(GetTaskStatisticsDto(0, 0, 0)) } }

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ϓϨθϯςʔγϣϯ૚

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ϓϨθϯςʔγϣϯ૚ͷ໾ׂ w ར༻ऀ͔ΒͷσʔλΛͲ͏ड͚औΓɺར༻ऀ΁Ͳ͏σʔλΛฦ͔͢ʹؔ৺ Λ࣋ͭɻར༻ऀͱͷ઀఺ w ΢Σϒ"1*Ͱݴ͏ͱ)551ͷϦΫΤετͷղऍ͓ΑͼϨεϙϯε΁ͷม׵͕ ֘౰ w ϦΫΤετΛղऍ͠ΞϓϦέʔγϣϯαʔϏε΁౉͢ w ΞϓϦέʔγϣϯαʔϏε͔Βͷ݁ՌΛϨεϙϯεʹม׵ w 4DBMBUSB KTPOT Λ࠾༻ʢ"LLB)551DJSDF΁ͷ৐Γ׵͑΋ݕ౼தʣ

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*OCPVOEͱ0VUCPVOE w ΞϓϦέʔγϣϯαʔϏε΁ͷೖྗํ๏ʢҾ਺ͷ਺ʣ͕౷Ұ͞Ε͍ͯΕ͹ɺ ػցతʹΞϓϦέʔγϣϯαʔϏεΛݺͼग़͢͜ͱ͕ग़དྷΔ w ͦͷͨΊʹೖྗ༻ΦϒδΣΫτʢ$PNNBOE 2VFSZʣΛ४උ w )551ϦΫΤετˠೖྗ༻ΦϒδΣΫτͷม׵Λ*OCPVOE w ΞϓϦέʔγϣϯαʔϏεग़ྗˠ)551Ϩεϙϯεͷม׵Λ0VUCPVOE

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)551ϦΫΤετˠೖྗ༻ΦϒδΣΫτ POST /path/to/api HTTP/1.1 Content-Type: application/json ... { "id": "79062e11-6c96-4487-95f5-d3acf7dea808" } FinishTaskCommand( id = TaskId(79062e11-6c96-4487-95f5-d3acf7dea808) )

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*OCPVOEͷఆٛྫ object FinishTaskInbound { private implicit val jsonFormats: Formats = DefaultFormats ++ Seq(...) case class Body(id: TaskId) def apply(request: ScalatraRequest): FinishTaskCommand = { val body = request.bodyAsJson.extract[Body] FinishTaskCommand(body.id) } }

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object FinishTaskInbound { private implicit val jsonFormats: Formats = DefaultFormats ++ Seq(...) case class Body(id: TaskId) def apply(request: ScalatraRequest): FinishTaskCommand = { val body = request.bodyAsJson.extract[Body] FinishTaskCommand(body.id) } } *OCPVOEͷఆٛྫ 4DBMBUSB3FRVFTUʢ)551ϦΫΤετʣΛೖྗͱ͠ɺ 'JOJTI5BTL$PNNBOEʢೖྗ༻ΦϒδΣΫτʣΛग़ྗͱ͢Δ

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object FinishTaskInbound { private implicit val jsonFormats: Formats = DefaultFormats ++ Seq(...) case class Body(id: TaskId) def apply(request: ScalatraRequest): FinishTaskCommand = { val body = request.bodyAsJson.extract[Body] FinishTaskCommand(body.id) } } *OCPVOEͷఆٛྫ 4DBMBUSB3FRVFTU͔Βೖྗ༻ΦϒδΣΫτʹඞཁͳ஋ΛऔΓग़͢

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object FinishTaskInbound { private implicit val jsonFormats: Formats = DefaultFormats ++ Seq(...) case class Body(id: TaskId) def apply(request: ScalatraRequest): FinishTaskCommand = { val body = request.bodyAsJson.extract[Body] FinishTaskCommand(body.id) } } *OCPVOEͷఆٛྫ औΓग़ͨ͠஋Ͱ'JOJTI5BTL$PNNBOEΛ࡞੒

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ΞϓϦέʔγϣϯαʔϏεग़ྗˠ)551Ϩεϙϯε HTTP/1.1 200 OK Content-Type: application/json ... { "id": "79062e11-6c96-4487-95f5-d3acf7dea808", "title": "a title", "createdAt": "2017-05-27T10:00:00+09:00", "finishedAt": "2017-05-27T14:50:00+09:00" } Task( id = TaskId(79062e11-6c96-4487-95f5-d3acf7dea808), title = TaskTitle(a title), createdAt = DateTime(2017-05-27T10:00:00+09:00), finishedAt = Some(DateTime(2017-05-27T14:50:00+09:00)) )

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0VUCPVOEͷఆٛྫ object FinishTaskOutbound { case class Body( id: TaskId, title: TaskTitle, createdAt: DateTime, finishedAt: Option[DateTime] ) def apply(task: Task): ActionResult = { val body = Body( id = task.id, title = task.title, createdAt = task.createdAt, finishedAt = task.finishedAt ) Ok(body) } }

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object FinishTaskOutbound { case class Body( id: TaskId, title: TaskTitle, createdAt: DateTime, finishedAt: Option[DateTime] ) def apply(task: Task): ActionResult = { val body = Body( id = task.id, title = task.title, createdAt = task.createdAt, finishedAt = task.finishedAt ) Ok(body) } } 0VUCPVOEͷఆٛྫ 5BTLʢ'JOJTI5BTL"QQMJDBUJPO4FSWJDFͷग़ྗʣΛೖྗͱ͠ɺ "DUJPO3FTVMUʢ4DBMBUSBʹ͓͚Δ)551ϨεϙϯεʣΛग़ྗͱ͢Δ

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object FinishTaskOutbound { case class Body( id: TaskId, title: TaskTitle, createdAt: DateTime, finishedAt: Option[DateTime] ) def apply(task: Task): ActionResult = { val body = Body( id = task.id, title = task.title, createdAt = task.createdAt, finishedAt = task.finishedAt ) Ok(body) } } 0VUCPVOEͷఆٛྫ )551Ϩεϙϯεຊจͷ+40/༻ͷέʔεΫϥεΛ࡞੒

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object FinishTaskOutbound { case class Body( id: TaskId, title: TaskTitle, createdAt: DateTime, finishedAt: Option[DateTime] ) def apply(task: Task): ActionResult = { val body = Body( id = task.id, title = task.title, createdAt = task.createdAt, finishedAt = task.finishedAt ) Ok(body) } } 0VUCPVOEͷఆٛྫ 0,ͳ"DUJPO3FTVMUΛ࡞੒

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4DBMBUSBʹࡌͤΔ class Endpoints extends ScalatraServlet with JacksonJsonSupport { private implicit val formats: Formats = DefaultFormats ++ Seq(...) before { contentType = formats("json") } post("/FinishTask") { run(FinishTaskApplicationService, FinishTaskInbound, FinishTaskOutbound) } ... private def run(...): ActionResult = ... }

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$POUSPMMFSͷྫ class FinishTaskController( applicationService: FinishTaskApplicationService, presenter: FinishTaskPresenter ) { private implicit val jsonFormats: Formats = DefaultFormats ++ Seq(...) case class Body(id: TaskId) def apply(request: ScalatraRequest): ActionResult = { val body = request.bodyAsJson.extract[Body] val user = applicationService(body.id) presenter(user) } }

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3&45GVMͳ63-ઃܭ 63- ΞϓϦέʔγϣϯαʔϏε w (FU5BTL w $SFBUF5BTL w -PHJO w 4VN/VNCFST

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3&45GVMͳ63-ઃܭ 63- w (&5UBTLT5"4,@*% w 1045UBTLT ΞϓϦέʔγϣϯαʔϏε w (FU5BTL w $SFBUF5BTL w -PHJO w 4VN/VNCFST

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3&45GVMͳ63-ઃܭ 63- w (&5UBTLT5"4,@*% w 1045UBTLT w 1045TFTTJPO ͳΔ΄Ͳ ΞϓϦέʔγϣϯαʔϏε w (FU5BTL w $SFBUF5BTL w -PHJO w 4VN/VNCFST

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3&45GVMͳ63-ઃܭ 63- w (&5UBTLT5"4,@*% w 1045UBTLT w 1045TFTTJPO ͳΔ΄Ͳ w ΞϓϦέʔγϣϯαʔϏε w (FU5BTL w $SFBUF5BTL w -PHJO w 4VN/VNCFST

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࣮ࡍʹ࠾༻͍ͯ͠Δ63-ઃܭ 63- w (&5(FU5BTL w 1045$SFBUF5BTL w (&5-PHJO w (&54VN/VNCFST ΞϓϦέʔγϣϯαʔϏε w (FU5BTL w $SFBUF5BTL w -PHJO w 4VN/VNCFST

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΢Σϒ"1*ʹ͓͚Δ63-ઓུ w ܾͯ͠3&45GVM͕໾ʹཱͨͳ͍ͱ͍͏͜ͱͰ͸ͳ͍ w ΞϓϦͷͨΊͷ΢Σϒ"1*ͳΒ͹ɺΞϓϦͷϢʔεέʔεΛ࣮ݱ͢ΔͨΊʹ دΓఴͬͨ"1*ͱͳΔͨΊɺϢʔεέʔεΞϓϦέʔγϣϯαʔϏεͱ ͷ63-ͷํ͕౎߹͕ྑ͍ w αʔυύʔςΟʹఏڙ͢Δ΢Σϒ"1*ͳΒ͹ɺ޿͘ఏڙ͢ΔͨΊϢʔεέʔ εΛఆΊΒΕͳ͍ɻαʔϏε͕อ͍࣋ͯ͠ΔϦιʔεͷ$36%͚ͩΛఏڙ͠ɺ ࣗ༝ʹѻͬͯ΋Β͏ɻͦΕͳΒ3&45GVMͷํ͕౎߹͕ྑ͍

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ΠϯϑϥετϥΫνϟ૚

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ΠϯϑϥετϥΫνϟ૚ͷ໾ׂ w ٕज़తৄࡉΛఏڙ w σʔλετΞ w ϝʔϧૹ৴ w ϝοηʔδૹ৴ w FUD w υϝΠϯ૚ͳͲͰఆٛ͞ΕͨΠϯλϑΣʔεΛ࣮૷

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࠶ܝϦϙδτϦͷఆٛྫ trait Repository[ID, E <: Entity[ID], X] { def find(id: ID)(implicit context: X): Option[E] def store(entity: E)(implicit context: X): Unit } trait TaskRepository[X] extends Repository[TaskId, Task, X] { def findAllByCreatedAtRange( start: DateTime, end: DateTime )(implicit context: X): Seq[Task] }

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ϦϙδτϦ࣮૷ͷఆٛྫ class JDBCTaskRepository() extends TaskRepository[DBSession] { def find(id: TaskId)(implicit context: DBSession): Option[Task] = { ... } def store(task: Task)(implicit context: DBSession): Unit = { ... } def findAllByCreatedAtRange( start: DateTime, end: DateTime )(implicit context: DBSession): Seq[Task] = { ... } }

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ϦϙδτϦ࣮૷ͷఆٛྫ class JDBCTaskRepository() extends TaskRepository[DBSession] { def find(id: TaskId)(implicit context: DBSession): Option[Task] = { ... } def store(task: Task)(implicit context: DBSession): Unit = { ... } def findAllByCreatedAtRange( start: DateTime, end: DateTime )(implicit context: DBSession): Seq[Task] = { ... } }

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ϦϙδτϦ࣮૷ͷఆٛྫ class JDBCTaskRepository() extends TaskRepository[DBSession] { def find(id: TaskId)(implicit context: DBSession): Option[Task] = { ... } def store(task: Task)(implicit context: DBSession): Unit = { ... } def findAllByCreatedAtRange( start: DateTime, end: DateTime )(implicit context: DBSession): Seq[Task] = { ... } }

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GJOEϝιουͷத਎ val t = TaskTable.syntax("t") withSQL { select .from(TaskTable as t) .where.eq(t.id, id) }.map { rs => val taskRecord = TaskRecord(t)(rs) taskRecord.toDomainObject }.single.apply

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ͦͷଞ

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Ϗϧυ w TCUΛ࢖༻ w ίʔυϑΥʔϚολͱͯ͠TCUTDBMBSJGPSNΛ࢖༻ w KBSʹ·ͱΊΔͨΊʹTCUBTTFNCMZΛ࢖༻ w ෳ਺ͷϓϩδΣΫτʹ෼ׂ

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ෳ਺ͷϓϩδΣΫτʹ෼ׂυϝΠϯ lazy val domain = Project( id = "domain", base = file("domain"), settings = defaultSettings ++ Seq( libraryDependencies ++= Seq( // Joda-Timeなどの基本的なクラスを提供してくれるライブラリ ) ) )

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ෳ਺ͷϓϩδΣΫτʹ෼ׂ࣮૷ lazy val jdbcImpl = Project( id = "jdbcImpl", base = file("jdbc_impl"), settings = defaultSettings ++ Seq( libraryDependencies ++= Seq( // ScalikeJDBCなどの実装に必要なライブラリ ) ) ).dependsOn(domain)

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ෳ਺ͷϓϩδΣΫτʹ෼ׂΞϓϦέʔγϣϯ lazy val app = Project( id = "app", base = file("app"), settings = defaultSettings ++ Seq( libraryDependencies ++= Seq( // Scalatraなどのプレゼンテーションに必要なライブラリ ) ) ).dependsOn(domain, jdbcImpl, ...)

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ςετ w 4DBMB5FTUΛ࢖༻ w ݱঢ়͸υϝΠϯΦϒδΣΫτͷςετ͓Αͼ&&ςετΛهड़ w ࣮૷ͷςετ͸͋ͬͨํ͕ྑ͍

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એ఻ w גࣜձࣾϝσΟϩϜIUUQTNFEJSPNDPKQ͸։ൃऀΛืू͍ͯ͠·͢ w ։ൃͱͪΌΜͱ޲͖߹͍͍ͨํେ׻ܴ w 4DBMBͰαʔόαΠυ w 4XJGUͰJ04ΞϓϦ w +BWBʢ,PUMJO΋࢖͏͔΋ʁʣͰ"OESPJEΞϓϦ w +BWB4DSJQUʢ4DBMBKT΋࢖͏͔΋ʁʣͰ΢ΣϒΞϓϦ

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࿩ͨ͜͠ͱ w ΞʔΩςΫνϟ w ϨΠϠʔυΞʔΩςΫνϟ w %*1 w υϝΠϯ૚ w ஋ΦϒδΣΫτ w ෆมͱଐੑʹΑΔ౳Ձ w ΤϯςΟςΟ w ࣝผࢠʹؔ͢Δཹҙࣄ߲ w αʔϏε w ϦϙδτϦ w %%%΁ͷऔΓ૊Έ w ΞϓϦέʔγϣϯ૚ w ΞϓϦέʔγϣϯαʔϏε w ίϚϯυͱΫΤϦ w ϓϨθϯςʔγϣϯ૚ w *OCPVOEͱ0VUCPVOE w 63-ઃܭ w ΠϯϑϥετϥΫνϟ૚ w ͦͷଞ w Ϗϧυ w ςετ