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5分でわかった気になるDDD

Sponsored · Ship Features Fearlessly Turn features on and off without deploys. Used by thousands of Ruby developers. →
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January 24, 2019
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 5分でわかった気になるDDD

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dora56

January 24, 2019
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Transcript

  1. 5෼Ͱ Θ͔ͬͨؾʹͳΔDDD by dora56

  2. ࣗݾ঺հ • dora56 • 25ࡀ • डୗ։ൃ • JavaͰαʔόʔαΠυ΍ͬͯ·͢

  3. υϝΠϯۦಈઃܭ(DDD)ͱ͸ ͳΜͩʁ

  4. ͦ΋ͦ΋υϝΠϯͱ͸ʁ

  5. Domain(υϝΠϯ) 1. ྖ஍ɺྖ౔ 2. ʢ஌ࣝɺࢥ૝ɺ׆ಈͳͲʣྖҬɺ෼໺ɺ…ք 3. ʢ౔஍ͷʣ׬શॴ༗ݖ


  6. DDD͕ҙຯ͢ΔυϝΠϯ͸ʁ ͢΂ͯͷιϑτ΢ΣΞϓϩάϥϜ͸ɺͦΕΛ࢖ ༻͢ΔϢʔβͷԿ͔͠Βͷ׆ಈ΍ؔ৺ͱؔ܎͕ ͋ΔɻϢʔβ͕ϓϩάϥϜΛదԠ͢Δ͜ͷର৅ ྖҬ͕ɺιϑτ΢ΣΞͷυϝΠϯͰ͋Δɻ ―ΤϦοΫɾΤϰΝϯεͷυϝΠϯۦಈઃܭ

  7. ͭ·Γ • ιϑτ΢ΣΞԽ͢Δۀ຿ྖҬ • ձܭϓϩάϥϜͷυϝΠϯ͸ձܭͱࡒ຿ • ιʔείʔυ؅ཧγεςϜͷυϝΠϯ͸ιϑτ ΢ΣΞ։ൃͦͷ΋ͷ

  8. ͡Ό͋ɺྑ͍ιϑτ΢ΣΞΛ ࡞Δʹ͸υϝΠϯʹ͍ͭͯ
 ஌Δඞཁ͕͋ΔΑͶ

  9. υϝΠϯΛཧղ͢Δʹ͸
 ۀ຿ΛΑΓΑ͘஌͍ͬͯΔ୲ ౰ऀʢυϝΠϯΤΩεύʔτʣ ͕ඞཁ

  10. ։ൃऀͱ υϝΠϯΤΩεύʔτ͕
 ڠྗ͢Δʹ͸

  11. νʔϜͰڞ༗͢Δݴޠ
 υϝΠϯͷ༻ޠͷڞ௨ೝࣝ
 ʢϢϏΩλεݴޠʣ͕༗༻

  12. ͞Βʹ
 ڥք͚ͮΒΕͨίϯςΩετ Ͱ υϝΠϯϞσϧΛߏங

  13. ڥք͚ͮΒΕͨίϯςΩετ ۜߦ ΞΧ΢ϯτޱ࠲ ձܭ ΞΧ΢ϯτצఆՊ໨ ΞΧ΢ϯτͱ͍͏ݴ༿͕จ຺ʹΑͬͯҧ͏

  14. ݴ༿ͷఆٛΛ͔ͬ͠Γ΍Δ

  15. ͜͜·Ͱ৭ʑઆ໌͚ͨ͠Ͳ ݁ہDDDͬͯʁ

  16. DDDͱ͸ • ։ൃऀͱυϝΠϯΤΩεύʔτͱҰॹʹυϝ ΠϯϞσϧΛ୳ٻ͠ɺڞ௨ͷݴ༿Λ࢖͍ͳ͕ Βιϑτ΢ΣΞΛൃల͍ͤͯ͘͞ઃܭख๏ • ྑ͍ιϑτ΢ΣΞઃܭΛ͢ΔͨΊͷҙࢥܾఆ ͷࢦ਑ͱͳΔϑϨʔϜϫʔΫ

  17. ݴ͍͍ͨ͜ͱ

  18. ྑ͍ιϑτ΢ΣΞΛ࡞Δʹ͸ɺ ٕज़͚ͩͰ͸ͳ͘ɺϏδωε αΠυͱڠྗ͠ͳ͕Β
 ઃܭ͍ͯ͘͜͠ͱ͕େࣄ

  19. ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ