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2012-04-05 JavaOne Tokyo Special LT

Avatar for 都元ダイスケ - MIYAMOTO Daisuke 都元ダイスケ - MIYAMOTO Daisuke
April 07, 2012
Technology
260
1

2012-04-05 JavaOne Tokyo Special LT

Avatar for 都元ダイスケ - MIYAMOTO Daisuke

都元ダイスケ - MIYAMOTO Daisuke

April 07, 2012

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Transcript

  1. The other day...

  2. ໿1िؒલʹϦϦʔεʂ ※ Powered by Java

  3. This morning... ड෇ʹͯ

  4. ໌೔LTͰ஻Δ༧ఆͷ౎ݩͰ͢ …͝ొ࿥͕͍͟͝·ͤΜ ͋ɺٶຊʹͳͬͯΔ͔΋͠Ε·ͤΜ …͍͟͝·ͤΜ…

  5. ͋ɺ͋Γ·ͨ͠ʂ ຊ೔Ͱ͢ΑͶʂ

  6. ͋ɺ͋Γ·ͨ͠ʂ ຊ೔Ͱ͢ΑͶʂ

  7. ࣗݾ঺հ • ౎ݩμΠεέ (@daisuke_m) • Apache Mahout ػցֶश • DDD

  8. ษڧϥΠϑϩά • ͍ͭɾԿΛɾԿ࣌ؒษڧͨ͠ʁ • ͍ͭษڧ͢Δ༧ఆʁ ࣌ؒ͸ʁ • ࠓ೔ɾࡢ೔ɾࠓ݄ɾઌ݄ͷษڧ࣌ؒ͸ʁ

  9. ͦΕ࡞ͬͯΔ࣌ʹ ݸਓతʹۤ࿑ͨ͠࿩

  10. ཁ͢Δʹɺओʹ ࣌ؒͱྐྵ͕ۀ຿஌ࣝ

  11. 2:33 • ͦΕ͸࣌ࠁʁ ޕલ2࣌33෼ • ͦΕ͸࣌ؒྔʁ 2࣌ؒ33෼ • Java԰͸੩తܕΛେࣄʹ͍ͨ͠Ͱ͢Ͷ •

    ʮ࣌ؒʯ࢖༻ېࢭ

  12. ྐྵ • 1೥=12ϲ݄ʢແ஡ۤ஡ͳෆۉ౳ׂΓʣ • 4೥ʹҰ౓ɺ͏Δ͏೥ɻ • ୠ͠ɺ100೥ʹҰ౓ͷྫ֎ • ୠ͠ɺ400೥ʹҰ౓ͷྫ֎ͷྫ֎ •

    ͜ͷล·Ͱ͸ඪ४API͕αϙʔτ

  13. ि • ೥ͱ͔݄ͱ͔Ұ੾ແࢹͨ͠ 7೔पظͷΞϨ • Ͳ͔͜Β͕ୈ1िʁ 1೔ΛؚΉिʁ • िͷ࢝·Γ͸݄༵೿ʁ ೔༵೿ʁ

  14. λΠϜκʔϯ • UTC-11 αϞΞ • UTC+14 ΩϦεΟϚεΟౡ • "ࠓ೔" ΍

    "ࠓ݄" Λਖ਼֬ʹଊ͑ΔͨΊ ʹ͸ɺλΠϜκʔϯͷಛఆ͕ඞཁ

  15. ͜͏ͯ͠ݟͯΈΔͱ ࣮͸΋ͷੌ͘ෳࡶ ͜͜ʹڍ͛ͨϧʔϧ΋͘͝Ұ෦ ϧʔϧ͸஌ͬͯΔΜ͚ͩͲͶ

  16. ͦΜͳᓔಃ͠͞Λ શͯղܾ͢Δۜͷ஄ؙ

  17. ΤϙοΫඵ • ࠓ೔΋໌೔΋ि΋݄΋Ӟ೥΋࣌ࠩ΋ͳ͍ • ͨͩ͠ɺৗਓ͕ݟͯ΋Α͘Θ͔ΒΜ t 0L 1333333333L 2012-04-02 11:22:13

    JST 1970-01-01 09:00:00 JST

  18. Javaඪ४API • ͝ଘ஌ͷ௨Γ৭ʑΞϨ

  19. JodaTime? JSR 310? • ແବʹෳࡶա͗Δ… • Ethiopic(ΤνΦϐΞྐྵ)? • Coptic(ίϓτྐྵ)? •

    ͔ͭΘͶʔΑ͆

  20. ΋͏͍͍ɻ ΦϨΦϨͰߦ͘

  21. baseunits v2.1 • ΦϨΦϨOSS • ࣌ࠁ͸ TimePoint ͰෆมΫϥε • ࣌ؒྔ͸

    Duration ͰෆมΫϥε • ݱࡏ࣌ࠁ͸ Clock ͕஌ͬͯΔ ...౳ • ࡞ͬͯΑ͔ͬͨɺ࣮ࡍɻ Apache License 2.0

  22. ςετ΋݁ߏ ͨͬ΀Γॻ͍ͨ͠ ࣮αʔϏε্Ͱ ಈ͍ͯΔ࣮੷ΞϦ ͋ͱ͸ggr

  23. ࣍ɻ

  24. ͦͷαʔϏεΛ ϦϦʔε్ͨ͠୺ ϑϧϘοίʹ ͞Εͨ࿩

  25. None
  26. None
  27. None

  28. ͓ӄ͞·Ͱ͍ͩͿ ڧ͘ͳΓ·ͨ͠

  29. ѱҙ͸ʢ͋·Γʣ ͳ͍Α͏Ͱ͢

  30. We are HIRING! • Java • Wicket • Spring •

    Mirage • Ehcache • DDD • Elastic Beanstalk • iOS • ...... • ...etc ͜ͷลͷΩʔϫʔυʹ͍͔ͭ͘Ҿ͔͔ͬͬͨΒ @daisuke_m·Ͱ͝࿈བྷ͍ͩ͘͞ωɻ