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Realmの処理を再利用可能かつ合成可能にする

 Realmの処理を再利用可能かつ合成可能にする

ukitaka

June 10, 2017
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  1. RealmͷॲཧΛ࠶ར༻Մೳ
    ͔ͭ߹੒Մೳʹ͢Δ
    @ukitaka

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  2. ಥવͰ͕͢Έͳ͞Μ

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  3. RealmͷॲཧΛ͢Δؔ਺Λ
    Ͳ͏ॻ͍͍ͯ·͔͢

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  4. ྫ͑͹͜͏

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  5. ྫ͑͹͜͏
    RealmͷΠϯελϯε͸தͰੜ੒͢Δ

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  6. ྫ͑͹͜͏
    τϥϯβΫγϣϯΛ࣮ߦ͢Δ

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  7. ྑͦ͞͏ʁ

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  8. ͍͔ͭ͘໰୊͕͋Δ

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  9. Կ͕໰୊͔

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  10. Կ͕໰୊͔
    ͦΕͧΕͰτϥϯβΫγϣϯ͕࣮ߦ͞Εͯ͠·͏

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  11. τϥϯβΫγϣϯ
    • ݺͼग़͠ͷͨͼʹɺॲཧ͕࣮ߦ͞Εͯ͠·͏
    ͷͰɺ1ͭͷτϥϯβΫγϣϯʹ·ͱΊΒΕͳ
    ͍ɻॲཧΛAtomicʹͰ͖ͳ͍ɻ
    • ॲཧͷهड़ͱ࣮ࡍͷ࣮ߦ͕෼཭Ͱ͖͍ͯͳ͍ɻ

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  12. τϥϯβΫγϣϯ
    • RealmʹݶΒͣɺҰൠతʹτϥϯβΫγϣϯͷ
    ։࢝͸ॏ͍ॲཧ
    • ຖճੜ੒͢Δͷͱ1ͭͷτϥϯβΫγϣϯʹ·
    ͱΊΔͷͰ(खݩͰܭଌͨ͠ͱ͜Ζ)10ഒҧ͏

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  13. ͭ·Γɺ͜ͷ··Ͱ͸

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  14. ࠶ར༻͠ʹ͍͘ʂ

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  16. Ͳ͏͢Δʁ

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  17. ෳ਺༻ͷؔ਺Λผʹ࡞Δʁ

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  18. ͡Ό͋͜Ε͸…ʁ

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  19. ͜Μͳؔ਺Λຖճ࡞Δͷʁ

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  20. ߹੒Ͱ͖ΔΑ͏ʹ͍ͨ͠ʂ

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  22. τϥϯβΫγϣϯͷ։࢝Λ
    ࢖͏ଆͰ΍ΒͤͯΈΔ

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  25. ࠶ར༻ͨ͠Γɺ
    ૊Έ߹ΘͤͨΓ

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  26. 1ͭͷτϥϯβΫγϣϯΛ
    ૊ΈཱͯΔ͜ͱ͕Ͱ͖ΔΑ͏
    ʹ͸ͳͬͨʂ

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  27. ࣮ࡍDDDຊͳͲʹ͸ͦ͏͠Ζͱ
    ॻ͍ͯ͋Δ
    ʮΤϦοΫɾΤϰΝϯεͷυϝΠϯۦಈઃܭʯ ΑΓ

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  28. ྑͦ͞͏ʁ

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  29. ͍͔ͭ͘໰୊͕͋Δ

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  30. Կ͕໰୊͔
    • τϥϯβΫγϣϯͷ੍ޚͷ੹೚͸ݺͼग़͠ଆ
    ʹ͋Δ͕ɺͦͷ͜ͱΛڧ੍Ͱ͖ͳ͍ɻͭ·Γ
    ։࢝͠๨ΕͳͲΛίϯύΠϧ࣌ʹݕग़Ͱ͖ͳ
    ͍ɻ
    • γάωνϟΈ͚ͨͩͰ͸τϥϯβΫγϣϯͷ
    ։͕࢝ඞཁͳͷ͔Ͳ͏͔Θ͔Βͳ͍ɻ

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  31. Կ͕໰୊͔
    τϥϯβΫγϣϯΛ։࢝͢΂͖ʁ
    ࣮͸Կ͔ॻ͖ࠐΜͰ͍ͨΓ͠ͳ͍ʁ
    (ಡΈࠐΈΛͯ͠ɺͳ͚Ε͹৽ن࡞੒ͱ͔)

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  33. Կ͕໰୊͔
    • ຖճҾ਺Ͱ౉͢ͷͪΐͬͱΊΜͲ͍͘͞
    • σϑΥϧτઃఆͷRealmΛ࢖͏ͱ͍͏҉໧ͷ
    ྃղ͕͋Ε͹౉ͣ͞ʹதͰੜ੒ͯ͠΋ྑ͍
    ͕…

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  35. ੔ཧ: Ͳ͏ͳ͍ͬͯΕ͹ཧ૝͔
    • ॲཧͷ಺༰Λఆٛͭͭ͠ɺͦΕͧΕΛ߹੒Ͱ͖Δ
    Α͏ʹ͍ͨ͠ɻͭ·ΓτϥϯβΫγϣϯΛ૊Έཱ
    ͯΔλΠϛϯάͱ࣮ߦͷλΠϛϯάΛ෼͚͍ͨɻ
    • τϥϯβΫγϣϯͷ։͕࢝ඞཁͰ͋Δ͜ͱΛ໌ࣔ
    తɺ੩తʹදݱ͍ͨ͠ɻ
    • Ͱ͖Ε͹࢖͍׳ΕͨI/FͰɺ؆ܿʹॻ͖͍ͨ

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  36. ੔ཧ: Ͳ͏ͳ͍ͬͯΕ͹ཧ૝͔
    • ॲཧͷ಺༰Λఆٛͭͭ͠ɺͦΕͧΕΛ߹੒Ͱ͖Δ
    Α͏ʹ͍ͨ͠ɻͭ·ΓτϥϯβΫγϣϯΛ૊Έཱ
    ͯΔλΠϛϯάͱ࣮ߦͷλΠϛϯάΛ෼͚͍ͨɻ
    • τϥϯβΫγϣϯͷ։͕࢝ඞཁͰ͋Δ͜ͱΛ໌ࣔ
    తɺ੩తʹදݱ͍ͨ͠ɻ
    • Ͱ͖Ε͹࢖͍׳ΕͨI/FͰɺ؆ܿʹॻ͖͍ͨ

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  37. ๻Β͸Ͳ͔͜Ͱಉ͡Α͏ͳ
    ͜ͱΛ΍͍ͬͯΔ΋ͷΛ
    ࣮͸ݟͨ͜ͱ͕͋Δ

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  40. ͜Ε͸͋Εͩ…

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  41. ※ۤखͳํͷͨΊʹϞβΠΫॲཧΛࢪ͍ͯ͠·͢

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  42. ʮScalaؔ਺ܕσβΠϯ&ϓϩάϥϛϯάʯ ΑΓ

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  43. ؔ਺ܕϓϩάϥϛϯάͷྗΛ
    आΓΔ

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  44. ࡞ͬͨ

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  45. RealmIO
    https://github.com/ukitaka/RealmIO

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  46. Ͳ͏࡞͔ͬͨʁ

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  47. ͜ΕΛ

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  48. ͜͏͡Ό

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  49. ͜͏͡Ό
    CurryԽ͢Δͱڞ௨ͷύλʔϯ͕ݟ͑Δ

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  51. ͢΂ͯͷRealmͷॲཧ͸͜͏දͤΔ
    ※ʮRealmΛड͚औͬͯԿ͔Λͯ݁͠ՌΛฦ͢ʯΈ͍ͨͳײ͡Ͱ͢ɻ
    ※Errorॲཧ͸Ұ୴ߟ͑ͯ·ͤΜ

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  52. ͞Βʹ͜ΕΛ

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  53. ͜͏͡Ό

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  54. ͭ·Γ͜ΕΛ

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  55. ͜͏͡Ό

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  56. ͜ͷܕΛϕʔεʹਐΊΔ

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  57. ͜͜·Ͱͷ·ͱΊ

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  58. ڞ௨෦෼͕͋ͬͨͷͰ͜͏͚ͨͩ͠

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  59. RealmIO

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  60. RealmIO

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  61. RealmIO

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  62. RealmIO

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  63. ࣮ࡍͷίʔυͰ͸ErrorΛthrow
    Ͱ͖ΔΑ͏ʹͳ͍ͬͯΔ

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  64. ͳΜͱͳ͘
    runΛݺͿ·Ͱ࣮ߦ͞Εͳ͍
    ײ͡͸ग़͖ͯͨ

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  65. ͕ɺ
    ·ͩͳʹ΋ղܾ͍ͯ͠ͳ͍

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  66. ͩΕ΋τϥϯβΫγϣϯ
    ։࢝ͯ͠ͳ͘Ͷʁ

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  67. ࡞Δ

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  68. τϥϯβΫγϣϯ੍ޚ

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  69. τϥϯβΫγϣϯ੍ޚ
    Realm͕RealmIOΛҾ਺ʹऔͬͯ

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  70. τϥϯβΫγϣϯ੍ޚ
    τϥϯβΫγϣϯ։࢝ͯ͠

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  71. τϥϯβΫγϣϯ੍ޚ
    ࣮ߦ !!!

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  72. τϥϯβΫγϣϯ੍ޚ
    • ࢖͏ͱ͖͸realm.run(io:) ΛݺͿΑ͏ʹ͢Δ
    • io.run͸௚઀ݺ΂ͳ͍Α͏ʹɺ࣮ࡍ͸internal
    ͳΓʹ͓ͯ͘͠ɻ

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  73. ͱ͜ΖͰRead͚ͩͷͱ͖͸ʁ

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  74. τϥϯβΫγϣϯ੍ޚ
    • ύϑΥʔϚϯεతʹ΋ɺແବʹτϥϯβΫ
    γϣϯΛ։࢝͢΂͖Ͱ͸ͳ͍ɻ
    • ಡΈࠐΈͷΈͷ৔߹͸τϥϯβΫγϣϯΛ։
    ࢝͠ͳ͍Α͏ʹ͢ΔͨΊʹɺॲཧ͕Readͳͷ
    ͔Writeͳͷ͔Λ൑ผ͢Δ࢓૊Έ͕ඞཁɻ

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  75. τϥϯβΫγϣϯ੍ޚ
    ܕ৘ใ͔Β͸Read/Write͕൑ผͰ͖ͳ͍

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  76. ࡞Δ

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  77. ͜ΕΛ

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  78. ͜͏͡Ό

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  79. ͜͏͡Ό
    Read͔Write͔ΛܕύϥϝʔλͰද͢

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  80. ͭ·Γ͜ΕΛ

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  81. ͜͏͡Ό

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  82. ͜͏͡Ό
    Read͔Write͔Λද͢ܕύϥϝʔλ

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  83. ͜͏͡Ό
    ฦΓ஋ͷܕΛද͢ܕύϥϝʔλ

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  84. τϥϯβΫγϣϯ੍ޚ

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  85. τϥϯβΫγϣϯ੍ޚ
    Writeͷ৔߹͸τϥϯβΫγϣϯΛ
    ։͔࢝ͯ͠ΒॲཧΛ࣮ߦ

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  86. τϥϯβΫγϣϯ੍ޚ
    Readͷ৔߹͸τϥϯβΫγϣϯΛ
    ։࢝ͤͣʹॲཧΛ࣮ߦ

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  87. Ͱ͖͖ͯͨ

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  88. ࣮ࡍʹެ։͍ͯ͠Δίʔυͱ
    ΄΅͓ͳ͡

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  89. PhantomType
    ͪͳΈʹRWܕύϥϝʔλ͸
    PhantomType(༓ྶܕ)ͱ͍ͬͯɺRead /
    WriteΛද͚ͩ͢ͰɺͲͷϝιουͷγάω
    νϟʹ΋ݱΕͳ͍ɻ

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  90. ͜͜·Ͱͷ·ͱΊ

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  92. flatMapͰ
    ߹੒Ͱ͖ΔΑ͏ʹ͢Δ

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  93. ࢖͍ํΠϝʔδ

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  94. ࢖͍ํΠϝʔδ

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  95. ͻͱͭ໰୊͕͋Δ

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  96. ߹੒ͨ͠Β
    Read / Write
    Ͳ͏ͳΔʁ

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  97. Read / Write

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  98. Read / Write
    RWܕύϥϝʔλʹԠͯ͡
    ෳ਺ͷflatMapͷ࣮૷͕ඞཁ

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  99. Read / Write

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  100. τϥϯβΫγϣϯ
    ΋ͪΖΜrunͨ͠Β1ͭͷ
    τϥϯβΫγϣϯ಺Ͱॲཧ͕ߦΘΕΔ

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  101. ׬੒ʂ

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  102. ͪͳΈʹϥΠϒϥϦͰ͸ɺrealmͷ
    ϝιουͷRealmIO൛Λఏڙ

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  103. ׬ᘳʁ

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  104. Ͱ͖ͳ͔ͬͨ͜ͱ
    • εϨουʹ͍ͭͯ͸ͳʹ΋Ͱ͖ͳ͔ͬͨɻॲ
    ཧͷهड़ͱ࣮ߦΛ෼཭͍ͯ͠ΔͷͰɺͦͷ2ͭ
    ͕ผεϨουͰߦΘΕΔՄೳੑ͕͋ΔͷͰɺ
    ͦ͜ͷ҆શੑΛϥΠϒϥϦଆͰอূ͔ͨͬ͠
    ͕ͨɺThreadSafeReferenceͷ੍໿ͰͰ͖
    ͣɻ

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  105. Ͱ͖ͳ͔ͬͨ͜ͱ
    objectΛҾ਺ड͚औΔϝιουʹ͓͍ͯɺ
    ݺͼग़࣌͠ͷεϨουͱ

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  106. Ͱ͖ͳ͔ͬͨ͜ͱ
    realm.run(io:)Λݺͼग़͢εϨου͕
    ҧ͏Մೳੑ͕͋Δɻ

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  107. Ͱ͖ͳ͔ͬͨ͜ͱ
    ඞཁͳΒTSRͰҾ͖௚࣮͢૷ΛೖΕΑ͏ͱ͕ͨ͠…

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  108. Ͱ͖ͳ͔ͬͨ͜ͱ
    ThreadSafeReference͸τϥϯβΫγϣϯ಺Ͱ
    resolveͰ͖ͳ͍ͱ͍͏੍໿͕͋Δ

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  109. Ͱ͖ͳ͔ͬͨ͜ͱ
    ͜͜͸τϥϯβΫγϣϯ಺ͳͷͰ
    resolveͰ͖ͳ͍

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  110. Ͱ͖ͳ͔ͬͨ͜ͱ
    • ࣮ࡍʹେ͖ͳ໰୊ʹͳΔ͔ͱݴΘΕΔͱɺͦ
    ͜·ͰͰ͸ͳ͍(ͱߟ͍͑ͯΔ)ɻಉ͡εϨου
    Ͱrealm.run(io:)ΛݺͿ͔ɺobjectΛҾ਺Ͱड
    ͚औΔϝιου͸flatMapͷதͰ࢖͏Α͏ʹ͢
    Ε͹໰୊͸ى͖ͳ͍ɻ

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  111. Ͱ͖ͳ͔ͬͨ͜ͱ
    • Stack overflowͷՄೳੑ͕ͳ͘͸ͳ͍ɻͰ΋ͦ
    Μͳʹ߹੒͢Δ͜ͱ͸ݱ࣮తʹ͸ͳ͍ͷͰɺ
    ΄ͱΜͲ໰୊ʹ͸ͳΒͳ͍ɻ
    • RxSwift͕Stack overflowى͜͢ͷͱಉ͘͡Β
    ͍ͷϦεΫ(΄΅ͳ͍)

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  112. Ͱ͖ͳ͔ͬͨ͜ͱ
    • ଞͷϞφυͱ૊Έ߹ΘͤΔͷ͸(ݱࡏͷSwiftͰ
    ͸)೉͍͠ɻྫ͑͹RxSwiftΛ࢖͍ͬͯΔ৔߹ɺ
    ObservableͱRealmIOΛ͏·͘૊Έ߹ΘͤΔ
    ͷ͸ݫ͍͠ɻ
    • ͜Ε͸ߴ֊ଟ૬͕ͳ͍ͱݫ͍͕͠…Swiftʹ͸
    ೖΒͳͦ͞͏

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  113. ࢀߟ
    • ReaderϞφυ
    • Slick (ScalaͷDBϥΠϒϥϦ)
    • ΞΠσΟΞ͸͜ΕͷDBIOAction͔Β
    • υϫϯΰൿ఻ͷτϥϯβΫγϣϯϞφυΛղઆ
    IUUQRJJUBDPNQBC@UFDIJUFNTFDEDGGB

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  114. RealmIO
    https://github.com/ukitaka/RealmIO

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