Realm Japan Meetup #13 

https://github.com/kishikawakatsumi/ kishikawa katsumi http://kishikawakatsumi.hatenablog.com/ Realm 

Makoto Yamazaki twitter: @zaki50 https://github.com/zaki50 Realm 

#realm_jp 

Recent Updates 

Realm Java 0.88.1 (was 0.87.5) 

IUUQTSFBMNJPKQOFXTSFBMNKBWB 

Realm Java 0.88.0(ඇޓ׵ͳมߋ1) w (SBEMFϓϥάΠϯΛ࢖༻͢Δઃఆ΁มߋ͢Δඞཁ͕͋Γ·͢ɻ
w \3FBMN %ZOBNJD3FBMN^FYFDVUF5SBOTBDUJPO ͸ɺτϥϯβΫγϣ ϯϒϩοΫͰൃੜ࣮ͨ͠ߦ࣌ྫ֎Λ3FBMN&YDFQUJPOͰϥοϓͤͣ ʹͦͷ··εϩʔ͠·͢ɻ  
w \3FBMN %ZOBNJD3FBMN^FYFDVUF5SBOTBDUJPO ʹOVMMΛ౉͢ͱ *MMFHBM"SHVNFOU&YDFQUJPOΛεϩʔ͠·͢ɻ
w ෆਖ਼ͳαϩήʔτϖΞΛؚΉจࣈྻΛTFUUFSʹ౉ͨ͠৔߹ʹεϩʔ ͞ΕΔྫ֎͕3FBMN&SSPS͔Β*MMFHBM"SHVNFOU&YDFQUJPOʹมߋ͞ Ε·͢ɻ 

ϓϩδΣΫτͷηοτΞοϓํ๏ͷมߋ CVJMETDSJQU
\




SFQPTJUPSJFT
\








KDFOUFS




^




EFQFOEFODJFT
\








DMBTTQBUI
JPSFBMNSFBMNHSBEMFQMVHJO




^
^
BQQMZ
QMVHJO
SFBMNBOESPJE SFQPTJUPSJFT
\




KDFOUFS
^
EFQFOEFODJFT
\




DPNQJMF
JPSFBMNSFBMNBOESPJE
^ CFGPSF BGUFS CVJMETDSJQU
\




SFQPTJUPSJFT
\








KDFOUFS




^




EFQFOEFODJFT
\








DMBTTQBUI
JPSFBMNSFBMNHSBEMFQMVHJO




^
^
BQQMZ
QMVHJO
SFBMNBOESPJE SFQPTJUPSJFT
\




KDFOUFS
^
EFQFOEFODJFT
\




DPNQJMF
JPSFBMNSFBMNBOESPJE
^ IUUQTSFBMNJPKQOFXTBOESPJEJOTUBMMBUJPODIBOHF 

executeTransaction()ʹ͍ͭͯ 3FBMN
SFBMN


USZ
\




SFBMNFYFDVUF5SBOTBDUJPO OVMM 
^
DBUDI
*MMFHBM"SHVNFOU&YDFQUJPO
F
\





͔Β͸ྫ֎͕εϩʔ͞ΕΔ
^ 3FBMN
SFBMN


USZ
\




SFBMNFYFDVUF5SBOTBDUJPO SFBMN

\








UISPX
OFX
.Z3VOUJNF&YDFQUJPO 




^ 

3FBMN&YDFQUJPOʹ͸ϥοϓ͞Εͳ͘ͳΔ
^
DBUDI
.Z3VOUJNF&YDFQUJPO
F
\





ྫ֎ʹର͢Δॲཧ
^ 

ෆਖ਼ͳαϩήʔτϖΞ 3FBMN
SFBMN


USZ
\




SFBMNFYFDVUF5SBOTBDUJPO SFBMN

\








.PEFM
N

SFBMNDSFBUF0CKFDU .PEFMDMBTT 








NTFU/BNF TVCTUSJOH  




^ 

3FBMN&SSPSͰ͸ͳ͘ͳΓ·ͨ͠
^
DBUDI
*MMFHBM"SHVNFOU&YDFQUJPO
F
\





ྫ֎ʹର͢Δॲཧ
^ 

Realm Java 0.88.0(ඇޓ׵ͳมߋ2) w ΠϯσοΫε͕࡞੒͞Ε͍ͯͳ͔ͬͨΓର৅ʹͰ͖ͳ͍ܕͷϑΟʔϧυʹରͯ͠ %ZOBNJD3FBMNEJTUJODU EJTUJODU"TZOD ɺ3FBMNEJTUJODU EJTUJODU"TZOD Λݺͼग़ͨ͠৔߹ɺ6OTVQQPSUFE0QFSBUJPO&YDFQUJPOͰ͸ͳ͘ *MMFHBM"SHVNFOU&YDFQUJPOΛεϩʔ͠·͢ɻ
w $IBOHF-JTUFOFS͕ొ࿥͞ΕͨεϨουͱಉ͡εϨουͰมߋΛDPNNJUͨ͠৔߹ɺ ͍··Ͱ͸ଈ࠲ʹϦεφʔ͕ݺ͹Ε͍ͯ·͕ͨ͠ɺ-PPQFSͷͷ࣍ͷΠϕϯτॲཧ ·Ͱ஗Ԇ͞ΕΔΑ͏ʹͳΓ·͢ɻ
w ͰEFQSFDBUFEʹͳ͍ͬͯͨ3FBMN$POpHVSBUJPOHFU4DIFNB.FEJBUPS Λ࡟আ͠·ͨ͠ɻϞσϧΫϥεҰཡΛऔಘ͢Δ৔߹͸ 3FBMN$POpHVSBUJPOHFU3FBMN0CKFDU$MBTTFT Λ࢖༻͍ͯͩ͘͠͞ɻ
 

ಉҰεϨουͰͷϦεφʔൃՐλΠϛϯά SFBMNCFHJO5SBOTBDUJPO 
.PEFM
NPEFM

SFBMNDSFBUF0CKFDU "MM5ZQFTDMBTT 
SFBMNDPNNJU5SBOTBDUJPO 
NPEFMBEE$IBOHF-JTUFOFS OFX
3FBMN$IBOHF-JTUFOFS
\




!0WFSSJEF




QVCMJD
WPJE
PO$IBOHF
\








4ZTUFNPVUQSJOUMO MJTUFOFS
DBMMFE 




^
^ 
SFBMNCFHJO5SBOTBDUJPO 
NPEFMTFU/BNF *DIJSP 
SFBMNDPNNJU5SBOTBDUJPO  

Realm Java 0.88.0(ඇޓ׵ͳมߋ3) w 3FBMNNJHSBUF3FBMN ͕ର৅ͱ͢Δ3FBMNϑΝΠϧ͕ଘࡏ͠ͳ ͍৔߹ɺ'JMF/PU'PVOE&YDFQUJPOΛεϩʔ͠·͢ɻ
w 3FBMN͔Βऔಘͨ͠0CTFSWBCMF͸ɺ಺෦ʹ3FBMNΠϯελϯε Λอ࣋͠ɺVOTVCTDSJCF͞ΕͨλΠϛϯάͰDMPTF ͠·͢ɻऔ ಘͨ͠0CTFSWBCMF͸๨ΕͣʹVOTVCTDSJCF͢ΔΑ͏ʹͯͩ͘͠ ͍͞ɻ  

Observableͷunsubscribe QSJWBUF
$PNQPTJUF4VCTDSJQUJPO
TVCTDSJQUJPOT
!0WFSSJEF
QSPUFDUFE
WPJE
PO3FTVNF
\




TVQFSPO3FTVNF 




TVCTDSJQUJPOT

OFX
$PNQPTJUF4VCTDSJQUJPO 
^ QSJWBUF
WPJE
RVFSZ
\




pOBM
3FBMN3FTVMUT.PEFM
SFTVMU

SFBMNBMM0CKFDUT .PEFMDMBTT 




pOBM
0CTFSWBCMF3FBMN3FTVMUT.PEFM
PCTFSWBCMF




PCTFSWBCMF

SFTVMUBT0CTFSWBCMF 




TVCTDSJQUJPOTBEE PCTFSWBCMFTVCTDSJCF SFTVMU

\









ݕࡧ݁Ռ͕มΘͬͨࡍͷॲཧ




^ 
^ !0WFSSJEF
QSPUFDUFE
WPJE
PO1BVTF
\




TVQFSPO1BVTF 




TVCTDSJQUJPOTVOTVCTDSJCF 
^ 

Realm Java 0.88.0(ഇࢭ༧ఆ) w 3FBMNHFU*OTUBODF $POUFYU

w 3FBMNHFU*OTUBODF 3FBMN$POpHVSBUJPO
w 3FBMNHFU%FGBVMU*OTUBODF
w 3FBMNHFU5BCMF $MBTT

w 3FBMNHFU4DIFNB
w %ZOBNJD3FBMNHFU4DIFNB
w 3FBMNFYFDVUF5SBOTBDUJPO 5SBOTBDUJPO
$BMMCBDL

w 3FBMNFYFDVUF5SBOTBDUJPO"TZOD 5SBOTBDUJPO
w 3FBMNFYFDVUF5SBOTBDUJPO"TZOD 5SBOTBDUJPO
0O4VDDFTT
w 3FBMNFYFDVUF5SBOTBDUJPO"TZOD 5SBOTBDUJPO
0O&SSPS
w 3FBMNFYFDVUF5SBOTBDUJPO"TZOD 5SBOTBDUJPO
0O4VDDFTT
0O&SSPS  

Realm.getInstance() ʹ͍ͭͯ ಺෦తʹɺ3FBMN$POpHVSBUJPO͸FRVBMT Ͱൺֱ͞ΕΔ͕ɺ
.JHSBUJPO΍3Y0CTFSWBCMF'BDUPSZ͕ҟͳΔ΋ͷͱΈͳ͞Εͯ͠·͏ 3FBMNHFU*OTUBODF 3FBMN$POpHVSBUJPO ΛݺͿࡍ͸
ຖճ3FBMN$POpHVSBUJPOΛ࡞Γͳ͓͢ͷ͸ආ͚Δ !0WFSSJEF
QVCMJD
CPPMFBO
FRVBMT 0CKFDU
PCK
\








JG
NJHSBUJPO

OVMM

NJHSBUJPOFRVBMT UIBUNJHSBUJPO

UIBUNJHSBUJPO

OVMM
SFUVSO
GBMTF



JG
SY0CTFSWBCMF'BDUPSZFRVBMT UIBUSY0CTFSWBCMF'BDUPSZ
SFUVSO
GBMTF







SFUVSO
TDIFNB.FEJBUPSFRVBMT UIBUTDIFNB.FEJBUPS 



^
^ 

Realm Java 0.88.0(৽ػೳ1) w ϞσϧΫϥε಺Ͱͷ੍ݶࣄ߲ͷେ෯؇࿨ BLB
#FUUFS
0CKFDUT 
w QSPKFDU
-PNCPLͱ૊Έ߹Θͤͯ࢖͑ΔΑ͏ʹͳΓ·ͨ͠ɻ 
w 3FBMN2VFSZJT/PU&NQUZ Λ௥Ճ͠·ͨ͠ɻ 
w 3FBMNEFMFUF"MM ͱ3FBMN-JTUEFMFUF"MM'SPN3FBMN Λ௥Ճ͠·ͨ͠ɻ 
w 3FBMN2VFSZEJTUJODU ͱ3FBMN3FTVMUTEJTUJODU Λ௥Ճ͠·ͨ͠ɻ 
w 3FBMN2VFSZEJTUJODU"TZOD ͱ3FBMN3FTVMUTEJTUJODU"TZOD Λ௥Ճ ͠·ͨ͠ɻ  

Realm Java 0.88.0(৽ػೳ2) w 3F-JOLFSϥΠϒϥϦΛ࢖ͬͯTPϑΝΠϧͷϩʔυͷ৴པੑΛߴΊ·ͨ͠ɻ
w 3FBMN-JTUDPOUBJOT ͷύϑΥʔϚϯε͕޲্͠·ͨ͠ɻ 
w \3FBMN %ZOBNJD3FBMN 3FBMN2VFSZ 3FBMN3FTVMUT^EJTUJODU  Ͱෳ਺ͷ ϑΟʔϧυΛࢦఆͰ͖ΔΑ͏ʹͳΓ·ͨ͠ɻ  
w ϞσϧΫϥεͰSFBMN΍SPXͱ͍͏໊લͷϑΟʔϧυΛ΋ͯΔΑ͏ʹͳΓ ·ͨ͠ɻ 
w 3FBMN3FTVMUTͷཁૉ਺͕*OUFHFS."9@7"-6&Ҏ্ͷ৔߹ɺTJ[F ϝιο υ͸ৗʹ*OUFHFS."9@7"-6&Λ͔͑͢Α͏ʹͳΓ·͢ɻ 
w 3FBMN
+BWBͷ""3ʹؚ·ΕΔϚχϑΣετϑΝΠϧ͔ΒBMMPX#BDLVQͷ هड़Λ࡟আ͠·ͨ͠ɻ   

Realm Java 0.88.0(όάϑΟοΫε1) w VOJU
UFTU
&YBNQMFͷςετ͕ࣦഊ͢ΔόάΛमਖ਼ɻ 
w +TPO
&YBNQMFͰ+40/จࣈྻʹޡΓ͕͋ΔόάΛमਖ਼ɻ 
w 3FBMN3FTVMUTEJTUJODU Λෳ਺ճݺͼग़ͨ͠ࡍʹ݁Ռ͕ෆਖ਼ʹ ͳΔόάΛमਖ਼ɻ  
w %ZOBNJD3FBMN0CKFDUTFU-JTU ʹ3FBMN-JTUΛ౉ͤͳ͍όάΛ मਖ਼ɻ  

Realm Java 0.88.0(όάϑΟοΫε2) w pOE'JSTU"TZOD ͷ݁Ռ͕݅ͷ৔߹ʹ3FBMN$IBOHF-JTUFOFST ͕ݺͼग़͞Εͳ͍όάΛमਖ਼ɻ͜Εʹ൐ͬͯɺಉ༷ͷঢ়گʹ͓͍ ͯpOE'JSTU"TZOD ͔Βऔಘͨ͠0CTFSWBCMFͷPO/FYU ΋ਖ਼͠ ͘ݺ͹ΕΔΑ͏ʹͳΓ·͢ɻ 
w ஋ʹOVMMΛηοτͨ͠৔߹ʹ3FBMN$IBOHF-JTUFOFS͕ݺ͹Εͳ ͍όάΛमਖ਼ɻ 
w ಛఆͷঢ়گͰ#BE7FSTJPO&YDFQUJPO͕εϩʔ͞ΕΔόάΛमਖ਼ɻ  

Realm Java 0.88.1(όάϑΟοΫε) w 3Y+BWBΛ࢖༻͠ͳ͍؀ڥͰɺ 3FBMN$POpHVSBUJPOFRVBMT 3FBMN$POpHVSBUJPO ͕/1&Λεϩʔ ͢ΔόάΛमਖ਼ 
w ϞσϧΫϥεͰ3FBMNҎ֎ͷΞϊςʔγϣϯΛ࢖༻͍ͯ͠ΔͱϏϧ υʹࣦഊ͢ΔόάΛमਖ਼

w TPϑΝΠϧʹ40/".&ϔομʔΛ௥Ճɻ 
w %ZOBNJD3FBMN0CKFDUUP4USJOH ͕OVMMͷ஋Λਖ਼͘͠දࣔ͠ͳ͍ό άΛमਖ਼ɻ 
w 3F-JOLFSΛ3FBMNࣗମʹಉࠝ͢ΔΑ͏ʹ͠·ͨ͠ɻ  

Better Objects! w ೚ҙͷϝιουΛ௥ՃͰ͖ΔΑ͏ʹͳΓ·͢
w ೚ҙͷΠϯλϑΣʔεΛ࣮૷͢Δ͜ͱ͕Ͱ͖·͢
w HFUUFSͱTFUUFSͷதʹɺࣗ༝ʹϩδοΫΛ૊ΈࠐΉ͜ͱ͕Ͱ͖·͢
w HFUUFSTFUUFSϝιουͷ໊લΛࣗ༝ʹܾΊΔ͜ͱ͕Ͱ͖·͢
w ϑΟʔϧυΛQVCMJDʹ͢Δ͜ͱͰɺHFUUFSTFUUFSͳ͠ʹϑΟʔϧ υ΁ΞΫηε͢Δ͜ͱ͕Ͱ͖·͢
w ಠࣗͷUP4USJOH ɺFRVBMT ɺIBTI$PEF ϝιουΛఆٛ͢Δ͜ ͱ͕Ͱ͖·͢ 

Better Objects DMBTT
.PEFM
FYUFOET
3FBMN0CKFDU
JNQMFNFOUT
$PNQBSBCMF.PEFM
\
QVCMJD
4USJOH
pSTU/BNF
QVCMJD
4USJOH
MBTU/BNF
QVCMJD
4USJOH
HFU'VMM/BNF
\




SFUVSO
pSTU/BNF




MBTU/BNF
^
QVCMJD
JOU
DPNQBSF5P 5
BOPUIFS
\




SFUVSO

^
QVCMJD
4USJOH
UP4USJOH
\




SFUVSO

^
^ .PEFM
N

SFBMNBMM0CKFDUT .PEFMDMBTT pSTU 
NpSTU/BNF
NMBTU/BNF
NHFU'VMM/BNF  

Happy coding with Better Objects 

http://bit.ly/RealmJP_13 ୹͍Ξϯέʔτʹ͝ڠྗ͍ͩ͘͞ 

Where to find us • # Realm Japan User Group: facebook.com/groups/realmjp • # Twitter: twitter.com/realmJapan • GitHub: github.com/realm • # StackOverflow: ja.stackoverflow.com/questions/tagged/realm • # Email: [email protected] • # Slack: slack.realm.io/ 

Realm Japan User Group # facebook.com/groups/realmjp 

Public Realm Slack # slack.realm.io/ 

Official Twitter/Facebook twitter.com/realmJapan facebook.com/655569387879379 

Official Web site realm.io/jp