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AWS CDKにおけるL2 Constructの仕組み / aws-cdk-l2-construct

k.goto
March 13, 2025
Programming
5
980

AWS CDKにおけるL2 Constructの仕組み / aws-cdk-l2-construct

2025/03/13開催「JAWS-UG東京 IaC Night 〜入門から上級まで！AWSをコードで構築しよう〜」での登壇資料です。

k.goto

March 13, 2025
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Transcript

  1.  LHPUP AWS CDKʹ͓͚Δ L2 Constructͷ࢓૊Έ +"846(౦ژ*B$/JHIU ʙೖ໳͔Β্ڃ·Ͱʂ"84ΛίʔυͰߏங͠Α͏ʙ

  2. ࣗݾ঺հ LHPUP "84)&30 "84$%,ίϯτϦϏϡʔτ 0QFO$POTUSVDUT-JCSBSZ ίϛϡχςΟۦಈ$%,$POTUSVDUϥΠϒϥϦ "84πʔϧ DMT EFMTUBDL MBNWFS

    "84%FW5PPMT)FSP .BJOUBJOFS 5PQ$POUSJCVUPS $PNNVOJUZ3FWJFXFS ࣗ࡞044 $%,$POTUSVDUϥΠϒϥϦ 9!@TUFQ@UFDI (JU)VC!HPUPL

  3. "84$%,ʹ͓͚Δ -$POTUSVDUͷ࢓૊Έ

  4. w -$POTUSVDUͷ࢓૊ΈΛ஌Δ͜ͱͰ$%,Λ༻͍ͨ։ൃͷώϯτΛಘΔ w -$POTUSVDUΛ࡞ΕΔΑ͏ʹͳΔ ͨΊͷ଍ֻ͔Γʹ  ‣ ຊηογϣϯ͚ͩͰͦͷશͯΛΧόʔ͸Ͱ͖ͳ͍ ‣ ͬ͘͟ΓͰ΋֓ཁΛ௫ΊΔͱHPPE

    ຊηογϣϯͷ໨త

  5. w 044Ͱ͋Δ"84$%,͸5ZQF4DSJQUͰ࣮૷͞Ε͍ͯΔ ‣ HJUIVCDPNBXTBXTDEL w ຊηογϣϯͰొ৔͢Δίʔυ͸͢΂ͯ$%,ͷ಺෦ίʔυ W࣌఺  ‣ ඞͣ͠΋ۀ຿Ͱ$%,Λ࢖͏ࡍͷίʔυʹ౰ͯ͸ΊΔ΂͖΋ͷͰ͸ͳ͍

    ‣ ͕ɺۀ຿ݸਓͰͷ$POTUSVDU։ൃ΍$%,ίϯτϦϏϡʔγϣϯͷࢀߟʹͳΕ͹ ຊηογϣϯͷલఏ

  6. $POTUSVDU ίϯετϥΫτ  ͬͯʁ

  7. $POTUSVDU ίϯετϥΫτ ͱ͸ w $%,ͷಠࣗܕ Ϋϥε ʹΑΔ"84Ϧιʔεఆٛͷந৅Խ ‣ -$POTUSVDUෳ਺ͷϦιʔεΛؚΉҰൠతͳߏ੒ύλʔϯ ‣

    -$POTUSVDUσϑΥϧτ஋΍ศརϝιουΛ࣋ͭ୯Ұͷ"84Ϧιʔε ‣ -$POTUSVDU$MPVE'PSNBUJPOϦιʔεϓϩύςΟͱͰରԠ ˞-ͱ͍͏ಛఆͷγφϦΦʹಛԽͯ͠ந৅Խͨ͠୯ҰϦιʔε΋͋Γ ந ৅ ౓

  8. w $%,ͷಠࣗܕ Ϋϥε ʹΑΔ"84Ϧιʔεఆٛͷந৅Խ ‣ -$POTUSVDUෳ਺ͷϦιʔεΛؚΉҰൠతͳߏ੒ύλʔϯ ‣ -$POTUSVDUσϑΥϧτ஋΍ศརϝιουΛ࣋ͭ୯Ұͷ"84Ϧιʔε ‣ -$POTUSVDU$MPVE'PSNBUJPOϦιʔεϓϩύςΟͱͰରԠ

    ˞-ͱ͍͏ಛఆͷγφϦΦʹಛԽͯ͠ந৅Խͨ͠୯ҰϦιʔε΋͋Γ ந ৅ ౓ w ಛఆͷϢʔεέʔεΛݺͼग़͠Ͱ࣮ݱ FH"-# 'BSHBUF  w ൚༻ੑ͕௿͍ͷͰ࢖͏γνϡΤʔγϣϯ͸ݶΒΕΔ w $%,ຊՈ͔Β͸΄ͱΜͲެ։͞Ε͍ͯͳ͍ $POTUSVDU ίϯετϥΫτ ͱ͸

  9. w $%,ͷಠࣗܕ Ϋϥε ʹΑΔ"84Ϧιʔεఆٛͷந৅Խ ‣ -$POTUSVDUෳ਺ͷϦιʔεΛؚΉҰൠతͳߏ੒ύλʔϯ ‣ -$POTUSVDUσϑΥϧτ஋΍ศརϝιουΛ࣋ͭ୯Ұͷ"84Ϧιʔε ‣ -$POTUSVDU$MPVE'PSNBUJPOϦιʔεϓϩύςΟͱͰରԠ

    ˞-ͱ͍͏ಛఆͷγφϦΦʹಛԽͯ͠ந৅Խͨ͠୯ҰϦιʔε΋͋Γ ந ৅ ౓ w ୯ҰϦιʔε Ћ $MPVE8BUDI-PHTͱ͔*".ϩʔϧͱ͔ ͳͨΊ൚༻ੑ͕ߴ͍ w ྑ͍۩߹ʹந৅Խͯ͘͠Εͯศར ந৅౓ΛԼ͛Δ͜ͱ΋Մ  w ૊ΈࠐΈόϦσʔγϣϯͰσϓϩΠલʹΤϥʔݕ஌ $POTUSVDU ίϯετϥΫτ ͱ͸ ˠΤεέʔϓϋον

  10. w $%,ͷಠࣗܕ Ϋϥε ʹΑΔ"84Ϧιʔεఆٛͷந৅Խ ‣ -$POTUSVDUෳ਺ͷϦιʔεΛؚΉҰൠతͳߏ੒ύλʔϯ ‣ -$POTUSVDUσϑΥϧτ஋΍ศརϝιουΛ࣋ͭ୯Ұͷ"84Ϧιʔε ‣ -$POTUSVDU$MPVE'PSNBUJPOϦιʔεϓϩύςΟͱͰରԠ

    ˞-ͱ͍͏ಛఆͷγφϦΦʹಛԽͯ͠ந৅Խͨ͠୯ҰϦιʔε΋͋Γ ந ৅ ౓ w શͯͷϓϩύςΟΛ໌ࣔతʹࢦఆ͢Δඞཁ͕͋Δ w ϓϩύςΟʹ࢖༻Ͱ͖Δܕͷछྨ͕গͳ͍ -Ͱ͸๛෋ $POTUSVDU ίϯετϥΫτ ͱ͸

  11. w ৄ͘͠͸"84#MBDL#FMUΛࢀর IUUQTQBHFTBXTDMPVEDPNST5;.JNBHFT"84#MBDL#FMU@@"84$%,#BTJD0WFSWJFX@@WQEG $POTUSVDU ίϯετϥΫτ ͱ͸

  12. w ͋ͷେมͳ71$ઃఆ΋͜Μͳ͓खܰʹ ‣ ˞ͪ͜Β͸7ͰɺΑΓΧελϜ͠΍͍͢7QD7΋Ћ൛ͰϦϦʔεࡁΈ $POTUSVDUͷศརػೳ

  13. w ͍͍ײ͡ͷ*".ݖݶΛ෇༩ͯ͘͠ΕΔHSBOUϝιου ͜ͷόέοτͱΦϒδΣΫτʹର͢Δ T(FU0CKFDU  T(FU#VDLFU  T-JTU $POTUSVDUͷศརػೳ

  14. w $%,ϨΠϠʔͰ5ZQF4DSJQU -BNCEB ͷϏϧυ ‣ /PEFKT'VODUJPO  Ϗϧυ্ͨ͠ͰΞηοτ -BNCEBͰݺͿ;*1ϑΝΠϧ Λ$%,༻ͷ4ʹΞοϓϩʔυ

    $POTUSVDUͷศརػೳ

  15. w $%,ϨΠϠʔͰ%PDLFSϏϧυ&$3ϓογϡ ‣ %PDLFS*NBHF"TTFU  Ϗϧυ্ͨ͠ͰΞηοτ &$4౳͔ΒݺͿΠϝʔδ Λ$%,༻ͷ&$3ʹϓογϡ ‣ &$3%FQMPZNFOU

     ಛఆͷ&$3ʹίϐʔ $POTUSVDUͷศརػೳ

  16. w $%,ϨΠϠʔͰ4Ξοϓϩʔυ ‣ #VDLFU%FQMPZNFOU  ΞηοτΛ4ʹΞοϓϩʔυ ;*1Λల։͢Δ͜ͱ΋Մೳ $POTUSVDUͷศརػೳ

  17. ͳΜͰ-$POTUSVDU ͷ࿩Λ͢Δͷ ʁ

  18. w -$POTUSVDU͸ʁ ‣ ൚༻ੑ͕௿ͯ͘࢖͑Δέʔε͕͋·Γͳ͘ɺͦ΋ͦ΋ຊՈ͔Β͋·Γग़͍ͯͳ͍ ‣ ϢʔβଆͰಠࣗͷΧελϜ - $POTUSVDUΛ࡞Δͷ͕ओྲྀ  --$POTUSVDUΛࣗϓϩμΫτͷϢʔεέʔεʹ߹Θͤͯࣗ༝ʹ૊Έ߹ΘͤΔ

     ͦͷͨΊ༷ࣜ͸༷ʑ w -$POTUSVDU͸ʁ ‣ ந৅Խ͕ͳ͍ศརػೳ͕ͳ͍ܕͷදݱ͕ऑ͍ ‣ -$POTUSVDU͕ରԠ͍ͯ͠ͳ͍෦෼ΛΧόʔ͢Δ࢖͍ํ͕ଟ͍ ͳΜͰ-$POTUSVDU ͷ࿩Λ͢Δͷ ʁ $%,ͱ͍ͬͨΒ-$POTUSVDUʂʂ

  19. -$POTUSVDUͷ࢓૊Έ

  20. -$POTUSVDUͷ࢓૊Έ ֓ཁ -$POTUSVDU $POTUSVDU*%3FTPVSDF *".3PMF1PMJDZ -PH(SPVQ FUD ϓϥΠϚϦϦιʔε ηΧϯμϦϦιʔε -$POTUSVDU

    1SPQT QSPQFSUZ" QSPQFSUZ#  QSPQFSUZ$  QSPQFSUZ%  SPMF  MPH(SPVQ  ʜ ʜ ͳ͚Ε͹ࣗಈੜ੒ ͳ͚Ε͹σϑΥϧτ஋ ϝιου ϝιου ϝιου

  21. -$POTUSVDUͷ࢓૊Έ ৄࡉ

  22. -$POTUSVDUͷ࢓૊Έ ৄࡉ

  23. -$POTUSVDUͷ࢓૊Έ ৄࡉ

  24. -$POTUSVDUͷ࢓૊Έ ৄࡉ

  25. -$POTUSVDUͷ࢓૊Έ ৄࡉ ࡞Δ΂͖΋ͷ͸͜Ε͚ͩ

  26. -$POTUSVDUͷ࢓૊Έ ৄࡉ

  27. -$POTUSVDUͷ࢓૊Έ ৄࡉ

  28. None

  29. w 6OPXOFE3FTPVSDFTͷͨΊͷ#FIBWJPSBM*OUFSGBDF *9YYܕ  ‣ ελοΫ֎ͷϦιʔεΛٖࣅతʹελοΫ؅ཧԼʹऔΓࠐΉͨΊͷಡΈࠐΈ༻ܕ  FH *#VDLFUɺ*5PQJDɺ*2VFVF 

    㱠DELJNQPSU ˡ࣮ࡍʹελοΫͷ؅ཧϦιʔεʹҠ͢ *&YBNQMF $%,ελοΫ Ϛωίϯ -BNCEB 4 #VDLFU ελοΫॴ༗ 
 ࣮$POTUSVDU HSBOU1VU ελοΫඇॴ༗ 
 *#VDLFU JOUFSGBDF ٖࣅऔΓࠐΈ GSPN#VDLFU"UUSJCVUFT

  30. w zGSPN9YY"SO zͳͲͷಡΈࠐΈϝιου͕ٖࣅϦιʔεΛ͜ͷܕͰฦ͢ w ී௨ͷ$POTUSVDUͱ ΄΅ ಉ͡Α͏ʹϓϩύςΟ΋औΕΔ͠ϝιου΋ݺ΂Δ *&YBNQMF *#VDLFUܕ

  31. w ී௨ͷ$POTUSVDUͱ ΄΅ ಉ͡Α͏ʹϓϩύςΟ͕औΕΔ࢓૊Έ ‣ ౉ͨ͠஋Λ΋ͱʹ$POTUSVDUΛٖࣅߏ੒ͯ͠6OPXOFE3FTPVSDFTܕͱͯ͠ฦ͢ *&YBNQMF  GSPN#VDLFU"SO Ͱόέοτͷ"SOΛ౉͢

    ͦΕ͕CVDLFU"SOʹηοτ   "SOͷ໋໊نଇʹԊͬͯ/BNFΛநग़ɺCVDLFU/BNFϓϩύςΟʹηοτ 㾎ଞʹ΋͜ͷ஋΍4UBDL3FHJPO৘ใ͔Βಋ͖ग़ͤΔϓϩύςΟ͸ηοτ͞ΕΔ  "SO͔Βಋ͚ͳ͍஋͸VOEF fi OFEʹͳΔ͕ɺGSPN"UUSJCVUFT ͩͱશͯ౉ͤΔ  GSPN-PPLVQ ͱ͍͏4%,Ͱ࣮ࡍʹ஋Λऔಘ͢Δಛघͳϝιου΋͋Δ

  32. w ී௨ͷ$POTUSVDUͱ ΄΅ ಉ͡Α͏ʹϝιου͕ݺ΂Δ࢓૊Έ ‣ -$POTUSVDU࣮ମ ΋͘͠͸#BTFΫϥε ͸͜ͷJOUFSGBDFΛJNQMFNFOUT͢Δ *&YBNQMF 

    $POTUSVDU࣮ମ͸6OPXOFE3FTPVSDFTͷ࣋ͭఆٛΛશͯ࣋ͭ ޓ׵ੑ  㾎&YBNQMFJNQMFNFOUT*&YBNQMF 㾎&YBNQMF#BTFJNQMFNFOUT*&YBNQMF  ਖ਼͘͠͸ʮ࣮$POTUSVDU͕6OPXOFE3FTPVSDFTܕͱಉ͜͡ͱ͕Ͱ͖Δʯ

  33. w 6OPXOFE3FTPVSDFTܕͷܕఆٛʹ͍ͭͯ ‣ *3FTPVSDFΛFYUFOET ‣ ඞཁ͕͋Ε͹*(SBOUBCMF *$POOFDUBCMF FUDʜ΋FYUFOET  HSBOUϝιουɺBMMPX5PϝιουͳͲͷର৅ʹ͍ͨ͠৔߹

    *&YBNQMF

  34. w 6OPXOFE3FTPVSDFTܕͷϓϩύςΟఆٛʹ͍ͭͯ ‣ ಡΈࠐΈ༻Ϧιʔε͔Βެ։͍ͨ͠ϓϩύςΟΛఆٛ  $MPVE'PSNBUJPOͰϦιʔε࡞੒࣌ʹฦ٫͞ΕΔϓϩύςΟ͸ جຊతʹ ࣋ͨͤΔ 㾎3FG (FU"UUͳͲͰฦ͞ΕΔ΋ͷYY/BNF

    YY"SO FUD ໋໊ͷYY෦෼͸লུ͠ͳ͍  㾎ͦΕΒʹ͸!BUUSJCVUFϥϕϧΛ͚ͭΔ $%,ಠࣗͰఆٛͨ͠ϓϩύςΟʹ͸ෆཁ *&YBNQMF

  35. w 6OPXOFE3FTPVSDFTܕͷϝιουఆٛʹ͍ͭͯ ‣ JOUFSGBDFʹ͸࣮૷Λॻ͚ͳ͍ͷͰ࣮ࡍͷॲཧ͸࣮૷ઌͰఆٛ  ಡΈࠐΈ༻ͷΫϥεΛผͰఆٛ͢Δ ʮ&YBNQMF -$POTUSVDU ʯʹͯޙड़ 

    ‣ ͜ͷϦιʔεࣗମʹมߋΛՃ͑ͳ͍ྨͷϝιουͷΈఆٛ  ͦͷ$POTUSVDU͕ॴ༗͢ΔผϦιʔε΁ͷߋ৽ܥ͸Մೳͳέʔε΋  ߋ৽ϝιουΛఆٛ͠ɺ࣮ମͰ͸࣮ࡍͷॲཧɺಡΈࠐΈ༻Ͱ͸μϛʔ࣮૷Λ͢Δ͜ͱ΋ ‣ HSBOUϝιου͸ಡΈࠐΈ༻ϦιʔεͰ΋࢖͑ΔͷͰجຊతʹఆٛ͢Δ͜ͱ͕ଟ͍  ͜ͷϦιʔεʹΞΫηε͢ΔͨΊͷݖݶΛΞΫηεݩͷϦιʔεʹ෇༩͢ΔͨΊ *&YBNQMF

  36. w $POTUSVDUͷ1SPQTͰड͚औΔϦιʔε͸6OPXOFE3FTPVSDFTܕʹ ‣ ελοΫ಺Ͱ࡞੒ͨ͠Ϧιʔε΋֎͔ΒಡΈࠐΜͩϦιʔε΋౉ͤΔ  -$POTUSVDU &YBNQMF ͸͜ͷܕ *&YBNQMF ΛJNQMFNFOUT͢ΔͨΊܕͷޓ׵ੑ͕͋Δ

     ஋΋ϝιου΋࢖͑ΔͷͰɺϓϦϛςΟϒܕ TUSJOHͳͲ ΑΓ΋͜ͷܕʹ͓ͯ͜͠͏ w $POTUSVDU͔Β֎ʹެ։͢ΔϦιʔε΋6OPXOFE3FTPVSDFTܕʹ ‣ ͦͷϦιʔεΛ࡞੒ͨ͠$POTUSVDUͷ֎Ͱ͸ߋ৽͞Εͳ͍Α͏ʹͰ͖Δ  ੹຿ͷ෼཭ɾ҆શੑͷ޲্ *&YBNQMF
  37. None

  38. &YBNQMF"UUSJCVUFT w GSPN9YY"UUSJCVUFT ϝιουʹ౉͢4USVDUT*OUFSGBDF ‣ ͜ͷ৘ใΛ΋ͱʹ6OPXOFE3FTPVSDFT͕ߏ੒͞ΕΔ  ͜ΕΑΓελοΫ֎ͷϦιʔεͰ΋ٖࣅ$POTUSVDUͱͯ͠ѻ͑ΔΑ͏ʹ *&YBNQMF 6OPXOFE3FTPVSDFT

    GSPN&YBNQMF"UUSJCVUFT TDPQF JE FYBNQMF"UUSJCVUFT *&YBNQMF YY"SO  YY/BNF   &YBNQMF"UUSJCVUFT *&YBNQMFΛJNQMFNFOUTͨ͠ ΫϥεͷΠϯελϯε͕ฦΔ

  39. &YBNQMF"UUSJCVUFT w શͯͷϓϩύςΟ͸SFBEPOMZ 4USVDUT*OUFSGBDFͷಛ௃  ‣ *OQVUͱͳΔ΋ͷ͸Πϛϡʔλϒϧ มߋෆՄೳ Ͱ͋Δ΂͠

  40. None

  41. &YBNQMF#BTF w ͭͷϦιʔεʹରͯ͠ෳ਺ͷ$POTUSVDUΛ࣮૷͢ΔͷͨΊͷڞ௨Ϋϥε ‣ $POTUSVDUΛෳ਺࡞Βͳ͍৔߹͸ແͯ͘΋ྑ͍͕֦ுͷͨΊʹ࡞͓ͬͯ͘ͷ͕ਪ঑ ‣ ͜Ε͕͋ΔͱಡΈࠐΈ༻ΫϥεΛ࡞Δࡍʹ࠶ར༻΋Ͱ͖Δ ޙड़ ྫBXTBQJHBUFXBZϞδϡʔϧ ྫBXTTϞδϡʔϧ

  42. &YBNQMF#BTF w #BTFΫϥεͷܕఆٛʹ͍ͭͯ ‣ BCTUSBDUΫϥε ‣ 3FTPVSDFΫϥεΛFYUFOET  -$POTUSVDUͱ͸3FTPVSDFΫϥεΛܧঝͨ͠΋ͷ 

    3FTPVSDFΫϥε-$POTUSVDUڞ௨ͷ৘ใΛ࣋ͭ 㾎JT3FTPVSDF JT3FTPVSDF QIZTJDBM/BNF FUD ‣ 6OPXOFE3FTPVSDFTܕ *9YYܕ ΛJNQMFNFOUT  ͜ΕͰಡΈࠐΈ༻ͷܕͷ࣋ͭϓϩύςΟɾϝιουఆٛΛҾ͖ܧ͙

  43. &YBNQMF#BTF w #BTFΫϥεͷϓϩύςΟఆٛʹ͍ͭͯ ‣ جຊ͸6OPXOFE3FTPVSDFTͷଐੑΛҾ͖ܧ͍ͩ΋ͷ  #BTFΫϥεݻ༗ͷଐੑ΋࡞ͬͯྑ͍ ‣ -$POTUSVDU αϒΫϥε

    ଆͰઃఆ͍ͨ͠ଐੑ͸BCTUSBDUʹ

  44. &YBNQMF#BTF w #BTFΫϥεͷDPOTUSVDUPSఆٛʹ͍ͭͯ ‣ Ҿ਺  9YY#BTF1SPQTPS3FTPVSDF1SPQT ‣ ॲཧ αϒΫϥεͷ-$POTUSVDUଆʹճͯ͠΋0,

      ෺ཧ໊ηοτɺڞ௨ϓϩύςΟηοτɺڞ௨όϦσʔγϣϯɺFUDʜ ‣ #BTFଆͰॳظԽॲཧ͕ෆཁͳ৔߹͸DPOTUSVDUPS͕ͳ͍͜ͱ΋  ͦͷ৔߹͸-$POTUSVDUࣗମ αϒΫϥε Ͱఆٛ͢Δ

  45. &YBNQMF#BTF w #BTFΫϥεͷϝιουఆٛʹ͍ͭͯ ‣ ֤-$POTUSVDUͰڞ௨Ͱ࢖༻͍ͨ͠ϝιουΛఆٛ ‣ ಡΈࠐΈ༻Ϋϥε ޙड़ Ͱ΋࢖༻͍ͨ͠ϝιου΋ఆٛ ‣

    HSBOUܥϝιου΍NFUSJDܥϝιου͸͍͍ͩͨ͜͜Ͱఆٛ

  46. &YBNQMF#BTF w #BTFΫϥε͕ͳ͍έʔε΋͋Δ ‣ ଞͷछྨ ೿ੜ ͷ$POTUSVDU͕ͳ͍ɾখ͍͞$POTUSVDUͷ৔߹ͳͲ ‣ γϯϓϧʹ͸ͳΔ͕࡞͓͍ͬͯͨํ͕ϕλʔ

  47. None

  48. w #BTFΫϥε΁ͷೖྗͷͨΊͷ4USVDUT*OUFSGBDF ‣ ڞ௨Ͱηοτ͍ͨ͠ϓϩύςΟ͕͋Ε͹࡞Δ  ߏ੒ϧʔϧ͸-$POTUSVDUͷ1SPQT &YBNQMF1SPQTɿޙड़ ͱಉ͡  ͦ΋ͦ΋#BTFΫϥεʹDPOTUSVDUPS͕ͳ͍৔߹ɾ3FTPVSDF1SPQTΛ౉͢৔߹͸ෆཁ

    ‣ 3FTPVSDF1SPQTΛFYUFOETͯ͠΋ྑ͍  &YBNQMF#BTF1SPQTFYUFOET3FTPVSDF1SPQT &YBNQMF#BTF1SPQT
  49. None

  50. &YBNQMF1SPQT w -$POTUSVDU΁ͷೖྗͷͨΊͷ4USVDUT*OUFSGBDF ‣ ϓϦϛςΟϒܕ OVNCFSͳͲ ɺFOVNɺJOUFSGBDFɺΫϥεɺ഑ྻɺFUDΛ࣋ͭ  9YY#BTF1SPQT͕͋Ε͹FYUFOET 

    ͢΂ͯͷϓϩύςΟΛSFBEPOMZʹ  Ϧιʔε(L2 Construct)Λ౉͍ͨ͠৔߹͸Unowned ResourcesܕͰఆٛ

  51. &YBNQMF1SPQT w ಛఆͷϓϩύςΟ܈Λผinterface(ωετ)ʹͯ͠΋ྑ͍͕ϑϥοτ͕ਪ঑ ‣ JavaͳͲͷݴޠͩͱωετ͞ΕͨΦϒδΣΫτͷੜ੒͕େมͳͨΊ ‣ ϑϥοτʹ͢Δ͜ͱͰoptionalʹͤ͟ΔΛಘͳ͍৔߹͸όϦσʔγϣϯͰΧόʔ DPO fi HVSBUJPOΛઃఆ͢Δ৔߹͸ͦͷதͷ֤ϓϩύςΟ͸ඞਢ

    ϑϥοτʹ͢Δ͜ͱͰͲͪΒ΋PQUJPOBMʹͳͬͯ͠·͏ DPO fi HVSBUJPOࣗମ͕ͦ΋ͦ΋ෆཁͳ৔߹͕͋ΔͷͰ ͳ͸͕ͣɾɾɾ

  52. &YBNQMF1SPQT w ৼΔ෣͍(ϝιου)Λ࣋ͭͱศརͳϓϩύςΟ͸Ϋϥεʹ͢Δͱදݱ͕޿͕Δ

  53. None

  54. w -$POTUSVDUຊମʢΫϥεʣ ‣ -$POTUSVDUΛ࢖͍উखΑ͘ந৅Խͨ͠΋ͷ  ؔ࿈Ϧιʔεੜ੒ɺਪ঑ͷσϑΥϧτ஋ઃఆɺศརϝιουɺόϦσʔγϣϯɺFUDʜ &YBNQMF -$POTUSVDU

  55. &YBNQMF -$POTUSVDU w -$POTUSVDUΫϥεͷܕఆٛʹ͍ͭͯ ‣ -$POTUSVDUͱ͸3FTPVSDFΫϥεΛܧঝͨ͠΋ͷ ࠶ܝ  ‣ #BTFΫϥεΛFYUFOET

     #BTFΫϥε͕͢Ͱʹ3FTPVSDFΫϥεΛܧঝ͍ͯ͠Δ ‣ #BTFΫϥε͕ͳ͚Ε͹  3FTPVSDFΫϥεΛFYUFOET  6OPXOFE3FTPVSDFT *9YY ΛJNQMFNFOUT

  56. &YBNQMF -$POTUSVDU w -$POTUSVDUΫϥεͷϓϩύςΟఆٛʹ͍ͭͯ ‣ #BTFΫϥεͰBCTUSBDUͰఆٛͨ͠΋ͷ͸͢΂ͯఆٛ  #BTFΫϥε͕ͳ͚Ε͹6OPXOFE3FTPVSDFT *9YY Ͱఆٛͨ͠΋ͷΛఆٛ

    ‣ ଞʹ΋֎͔ΒΞΫηεͰ͖ΔΑ͏ʹ͍ͨ͠ϓϩύςΟ͸QVCMJDʹ  SFBEPOMZਪ঑ ΋ͷʹΑͬͯ͸ͦ͏Ͱͳ͍΋ͷ΋͋Δ   ॲཧʹඞཁͳQSJWBUFQSPUFDUFEϓϩύςΟͷઃఆ͸ࣗ͝༝ʹ

  57. &YBNQMF -$POTUSVDU w -$POTUSVDUΫϥεͷDPOTUSVDUPSఆٛʹ͍ͭͯ ‣ ෺ཧ໊ηοτ #BTFΫϥεͰ΍ͬͯ΋0,   ະࢦఆͷ৔߹͸$MPVE'PSNBUJPO͕ࣗಈੜ੒

    ‣ ະࢦఆͷ৔߹Ͱ΋$%,ଆͰੜ੒͢Δ͜ͱ΋  ෺ཧ໊ͷ໋໊ϧʔϧʹ߹Θͤͯ-B[ZTUSJOH /BNFTVOJRVF3FTPVSDF/BNF  ΞΧ΢ϯτϦʔδϣϯލ͗༻ʹ1IZTJDBM/BNF(&/&3"5&@*'@/&&%&%

  58. &YBNQMF -$POTUSVDU w -$POTUSVDUΫϥεͷDPOTUSVDUPSఆٛʹ͍ͭͯ ‣ 1SPQT ΍ϩδοΫͷॲཧ݁Ռ Λ΋ͱʹ-$POTUSVDU $GO9YY ੜ੒

     $POTUSVDU*%͸z3FTPVSDFz  ύϥϝʔλܾఆͷॲཧ͸QSJWBUFϝιουʹ੾Γ෼͚ͯ΋0,

  59. &YBNQMF -$POTUSVDU w -$POTUSVDUΫϥεͷDPOTUSVDUPSఆٛʹ͍ͭͯ ‣ σϑΥϧτ஋ηοτɾؔ࿈Ϧιʔεͷࣗಈੜ੒  1SPQTͰ౉͞Ε͍ͯͨΒͦΕΛ࢖͏  "84αʔϏεͱͯ͠ਪ঑͢΂͖ઃఆ͕ͳ͚Ε͹$%,ଆͰσϑΥϧτ஋ͷηοτ͸ͤͣɺ

    $MPVE'PSNBUJPOͷσϑΥϧτ஋ʹ೚ͤΔ͜ͱͷํ͕ଟ͍

  60. &YBNQMF -$POTUSVDU w -$POTUSVDUΫϥεͷDPOTUSVDUPSఆٛʹ͍ͭͯ ‣ όϦσʔγϣϯ  5PLFOJT6OSFTPMWFE ͰτʔΫϯΛνΣοΫ͠ɺτʔΫϯ͸όϦσʔγϣϯ͠ͳ͍

  61. IUUQTBXTBNB[PODPNKQCVJMEFST fl BTIDELWBMJEBUJPO ֤छόϦσʔγϣϯख๏ʹՃ͑ɺτʔΫϯͱ͸Կ͔΋ॻ͍͍ͯ·͢ʂ

  62. &YBNQMF -$POTUSVDU w -$POTUSVDUΫϥεͷϝιουఆٛʹ͍ͭͯ ‣ ಡΈࠐΈ༻Ϧιʔε 6OPXOFE3FTPVSDFT ͷͨΊͷTUBUJDGSPNϝιου 6OPXOFE3FTPVSDFT GSPN&YBNQMF"UUSJCVUFT

    &YBNQMF"UUSJCVUFT GSPN&YBNQMF"SO GSPN-PPLVQ GSPN&YBNQMF*% GSPN&YBNQMF/BNF GSPN&YBNQMF9Z[ "84ΞΧ΢ϯτ &YBNQMF Ϧιʔε औಘ ౉͢ ౉͢ "3/ *% /BNF 9Z[ ࣮ࡍͷϦιʔε৘ใ ٖࣅ$POTUSVDUੜ੒ ಡΈࠐΈ༻ ˞͜ͷߏ଄ʹԊ͍ͬͯͳ͍έʔε΋͋Δ FH4FDVSJUZ(SPVQ

  63. &YBNQMF -$POTUSVDU w -$POTUSVDUΫϥεͷϝιουఆٛʹ͍ͭͯ ‣ GSPN9YY"UUSJCVUFT͸ϝιου಺ͰಡΈࠐΈ༻ΫϥεఆٛΠϯελϯεฦ٫

  64. &YBNQMF -$POTUSVDU w -$POTUSVDUΫϥεͷϝιουఆٛʹ͍ͭͯ ‣ GSPN9YY"UUSJCVUFT͸ϝιου಺ͰಡΈࠐΈ༻ΫϥεఆٛΠϯελϯεฦ٫  #BTFΫϥεΛFYUFOET ΋͘͠͸*9YYܕΛJNQMFNFOUT 3FTPVSDFΫϥεΛFYUFOET

     㾎#BTFΫϥε͕͋Δͱ#BTFΫϥεͰఆٛͨ͠ϝιουͳͲΛ࠶ར༻Ͱ͖Δ 㾎͜ΕʹΑΓಡΈࠐΈ༻ϦιʔεͰ΋HSBOUϝιουͳͲ͕ݺ΂Δ  ϝιου͸ͦΕΛ*9YYܕͷٖࣅ$POTUSVDU ಡΈࠐΈ༻ ͱͯ͠ฦ͢

  65. &YBNQMF -$POTUSVDU w -$POTUSVDUΫϥεͷϝιουఆٛʹ͍ͭͯ ‣ ഑ྻϓϩύςΟͳͲʹΠϯελϯεॳظԽޙʹ௥Ճ͢ΔBEEϝιου  -$POTUSVDUʹ͸ϝιουݺͼग़͠ޙʹ஗Ԇ࣮ߦ͞ΕΔʮ-B[ZʯͰ౉͢

  66. &YBNQMF -$POTUSVDU w -$POTUSVDUΫϥεͷϝιουఆٛʹ͍ͭͯ ‣ QSJWBUFϝιου  ॲཧ͕௕ͯ͘·ͱΊ͍ͨɺ࠶ར༻͍ͨ͠ ‣ ศརܥϝιου

     ˞HSBOUNFUSJDϝιου͸ಡΈࠐΈ༻ΫϥεͰ΋࢖͍͍ͨͷͰجຊ͸#BTFଆͰ࣮૷
  67. None
  68. None

  69. ˞ຊηογϣϯͷ঺հྫͱ͸গ͠ҟͳΓ·͢ IUUQTHJUIVCDPNBXTBXTDELCMPCWQBDLBHFT!BXTDELFYBNQMFDPOTUSVDUMJCSBSZMJCFYBNQMFSFTPVSDFUT

  70. $%,͕֤ϓϩάϥϛϯάݴޠͰಈ͘࢓૊Έ $%,Ϣʔβ ߏ଄ఆٛ ಺෦ॲཧ ֤$POTUSVDUΫϥε 5ZQF4DSJQU ֤$POTUSVDUΫϥε ߏ଄ఆٛ 1ZUIPO༻ +BWB༻

    (P༻ $༻ 5ZQF4DSJQU༻ +BWB4DSJQU༻ ޷͖ͳݴޠ Ͱ࢖༻ ߏ଄ఆ͔ٛΒ಺෦ॲཧݺͼग़͠ ߏ଄ఆ͚֤ٛͩݴޠʹࣗಈม׵ $%,ίϯτϦϏϡʔτͷൣғ HJUIVCDPNBXTBXTDEL ଞݴޠͰ࣮૷ͷ৔߹΋$%,࣮ߦʹ /PEFKTϥϯλΠϜ͕ඞཁ ˞֤ݴޠʹม׵͢ΔͨΊ 5ZQF4DSJQUݻ༗ͷܕදݱ͸/( ˞֤ݴޠʹ͸ม׵͠ͳ͍ͨΊ 5ZQF4DSJQUݻ༗ͷ࣮૷΋0, KTJJίϯύΠϥ "84੡ଟݴޠม׵πʔϧ ʰKTJJʱ HJUIVCDPNBXTKTJJ KTJJϥϯλΠϜ /PEFKTϓϩηε $%,ެ։࣌ 044ଆ $%,࣮ߦ࣌ Ϣʔβଆ τϥϯεύΠϧ

  71. એ఻ɿࣗ࡞πʔϧOSSͷ͝঺հ

  72. ࣗ࡞044"84πʔϧ ʲDMTʳ4όέοτΛߴ଎ʹ࡟আɾۭʹ͢Δπʔϧ ‣ IUUQTHJUIVCDPNHPUPLDMT ʲEFMTUBDLʳ"84$MPVE'PSNBUJPOελοΫڧ੍࡟আπʔϧ ‣ IUUQTHJUIVCDPNHPUPLEFMTUBDL ʲMBNWFSʳ-BNCEBϥϯλΠϜόʔδϣϯݕࡧπʔϧ ‣ IUUQTHJUIVCDPNHPUPLMBNWFS

  73. ࣗ࡞044"84πʔϧ ʲDMTʳ4όέοτΛߴ଎ʹ࡟আɾۭʹ͢Δπʔϧ ର࿩Ͱݕࡧͯ͠ɺෳ਺όέοτฒྻҰׅ࡟আʂ ඇݱߦόʔδϣϯͷΈ࡟আ΋Մೳʂࠓ࿩୊ͷ45BCMFTͷ࡟আʹ΋ରԠʂ

  74. ࣗ࡞044"84πʔϧ ʲEFMTUBDLʳ"84$MPVE'PSNBUJPOελοΫڧ੍࡟আπʔϧ $'O࡟আͰࣦഊ͢ΔϦιʔε͕͋ͬͯ΋ελοΫϦιʔε͝ͱڧ੍࡟আʂ ର࿩Ͱݕࡧͯ͠ɺෳ਺ελοΫҰׅ࡟আՄೳʂ ґଘؔ܎ΛՃຯͯ͠৽͍͠΋ͷ͔Βॱʹ࡟আ

  75. ࣗ࡞044"84πʔϧ ʲMBNWFSʳ-BNCEBϥϯλΠϜόʔδϣϯݕࡧπʔϧ Ϧʔδϣϯԣஅݕࡧʂશબ୒΍ϑΟϧλϦϯά΋Մʂ $47ग़ྗΦϓγϣϯ΋͋Γʂ

  76. ࣗ࡞044"84πʔϧ ʲMBNWFSʳ-BNCEBϥϯλΠϜόʔδϣϯݕࡧπʔϧ Ϧʔδϣϯԣஅݕࡧʂશબ୒΍ϑΟϧλϦϯά΋Մʂ $47ग़ྗΦϓγϣϯ΋͋Γʂ

  77. ࣗ࡞044"84$%,$POTUSVDUϥΠϒϥϦ ʲJNBHFTDBOOFSXJUIUSJWZʳ$%,Ͱ5SJWZͰίϯςφΠϝʔδεΩϟϯ ‣ IUUQTDPOTUSVDUTEFWQBDLBHFTJNBHFTDBOOFSXJUIUSJWZ ʲJNBHFTDBOOFSXJUIEPDLMFʳ$%,Ͱ%PDLMFͰίϯςφΠϝʔδεΩϟϯ ‣ IUUQTDPOTUSVDUTEFWQBDLBHFTJNBHFTDBOOFSXJUIEPDLMF ʲFMCPUIFSYYBMBSNʳ$%,ͰϚΠφʔͳYY  

    ͷ&-#ΞϥʔϜ ‣ IUUQTDPOTUSVDUTEFWQBDLBHFTJNBHFTDBOOFSXJUIEPDLMF

  78. 5IBOL:PV LHPUP "84%FW5PPMT)FSP 9!@TUFQ@UFDI (JU)VC!HPUPL