Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Speaker Deck
PRO
Sign in
Sign up
for free
Realm advanced topics and demo
Realm
June 12, 2017
Technology
0
1.5k
Realm advanced topics and demo
Realm advanced topics and demo
Realm World Tour Seoul June 8th 2017
Realm
June 12, 2017
Tweet
Share
More Decks by Realm
See All by Realm
realm
0
1.3k
realm
0
3.5k
realm
0
3.9k
realm
0
1.5k
realm
0
1.5k
realm
0
1.1k
realm
1
3.5k
realm
0
360
realm
0
770
Other Decks in Technology
See All in Technology
yoku0825
PRO
2
620
waka
0
280
lmi
5
3.5k
kanaugust
PRO
0
200
kateinoigakukun
0
120
nnstt1
2
120
supership
0
180
lain21
12
5.2k
am7cinnamon
1
290
line_developers
PRO
1
530
ayatokura
0
250
yuu26
1
1.1k
Featured
See All Featured
hatefulcrawdad
257
17k
jponch
103
5.1k
sugarenia
233
880k
sachag
267
17k
swwweet
206
6.9k
jlugia
217
16k
chriscoyier
498
130k
jmmastey
10
700
smashingmag
232
18k
dougneiner
56
5.4k
roundedbygravity
84
7.9k
marktimemedia
7
440
Transcript
Part 3: Advanced topics and demo Leonardo YongUk Kim (lk@realm.io)
• MVCC (RMD) • Zero Copy (RMD) • Event Handling
(RMD + RMP) • RMP Demo (RMP)
MVCC: Multi Version Concurrency Control
ݒ B+ ܻ৬ MVCC • ݒ B+ ܻܳ
ஸۢ ӝળਵ۽ ҳࢿ. • ߸҃ ࢎ೦ਸ MVCC(Multi Version Concurrency Control)۽ ҙܻ.
ݒ B+ ܻ … ప࠶ ܖ ஸۢਵ۽ࠗఠ ؘఠ
ਫ਼Ӭ݅ਃ? ৵ ஸۢࠗఠભ? … ప࠶ ܖ ஸۢਵ۽ࠗఠ ؘఠ
ੋؙझ ܴ ݫੌ ചߣഐ 1 ٣ܻয় d@realm.io 1004 2
da@realm.io 1005 3 ѱஎ g@realm.io 1006 4 ш 1@realm.io 1007
ੋؙझ ܴ ݫੌ ചߣഐ 1 ٣ܻয় d@realm.io 1004 2
da@realm.io 1005 3 ѱஎ g@realm.io 1006 4 ш 1@realm.io 1007 ܴਵ۽ ઑഥ೮णפ.
ੋؙझ ܴ ݫੌ ചߣഐ 1 ٣ܻয় d@realm.io 1004 2
da@realm.io 1005 3 ѱஎ g@realm.io 1006 4 ш 1@realm.io 1007 ాੋ ؘఋ߬झח ೠ ঀ פ. -> நए झ
ੋؙझ ܴ ݫੌ ചߣഐ 1 ٣ܻয় d@realm.io 1004 2
da@realm.io 1005 3 ѱஎ g@realm.io 1006 4 ш 1@realm.io 1007 ೠ ঀ ೞݶ ਊ ݏ ঋইࢲ ಁ٬ب ֍যঠ פ.
ੋؙझ ܴ ݫੌ ചߣഐ 1 ٣ܻয় d@realm.io 1004 2
da@realm.io 1005 3 ѱஎ g@realm.io 1006 4 ш 1@realm.io 1007 ೠঀ ೞݶ நएਯ ֫Ҋ ಁ٬ ਃহযਃ.
ߡ زदઁয(MVCC) A B C D F G E H
I ߡ 1 Root
ॳӝ ے࣌ ࢜ झշࢫਸ ٟ݅פ. A B C D F
G E H I E’ H’ C’ A’ Root ߡ 2
ॳӝ ীب ੍ӝо оמפ. A B C D F G
E H I E’ H’ C’ A’ ߡ 2 ॳӝ ߡ 1 ੍ӝ
੍ӝח ߓఋ ঋणפ. A B C D F G E
H I E’ H’ C’ A’ ߡ 2 ॳӝ ਬ 2: ߡ 1 ੍ӝ ਬ 1: ߡ 1 ੍ӝ
উפ A B C D F G E H I
E’ C’ A’ Root ߡ 1 ࢿ ܻૉ ߊࢤ ߡ 1 উ ನੋఠب ৈ ߡ 1ਵ۽
пӝ ܲ झۨ٘ ۽ஸਸ оפ. A B C D F
G E H I E’ H’ C’ A’ ਬ 3:ߡ 2 ॳӝ ਬ 2: ߡ 1 ੍ӝ ਬ 1: ߡ 1 ੍ӝ झۨ٘ ۽ஸ 1: ߡ 1 झۨ٘ ۽ஸ 2: ߡ 1 झۨ٘ ۽ஸ 3: ߡ 1 -> 2
ഒۆझ۞ ࣻ ח झۨ٘ ۽ஸ • ߓఋ ঋѱ ബਯਵ۽ ੍ӝ,
ॳӝܳ ೞӝ ਤ೧ ݫఋ ؘఠܳ झۨ٘ ױਤ۽ . • ݫݽܻ ݗਵ۽ োѾػ ؘఠח ݣ౭ झۨ٘۽ ҕਬغҊ . • ݅ झۨ٘ ۽ஸ۽ ৌܽ Realm, RealmList, RealmResults, RealmObject ёܳ ܲ झۨ٘۽ ׳ೡ ࣻ হ. • ܲ झۨ٘ীࢲ ௪ܻܳ ೞݶ ݣ౭ झۨ٘ ܐ ҕਬ ؋ী ߄۽ ੍.
Zero copy
җѢ ಕझ࠘ জ ޙઁ • JSON ੋ٬җ ٣٬ী ݆ ܻࣗझܳ
ೲ࠺. • ࢎਊغ ঋ ؘఠب ٣٬ਸ ೧ࢲ Java ёী ওযঠ ೣ. • ೧Ѿ଼: ҳӖ FlatBuffersܳ ॳ.
ాੋ ࣻച (Hydrate) • ؘఠ߬झীࢲ ܐܳ ޙৌա ӝఋ ੋ٬ ػ
ഋక۽ оઉ২פ. • य ٣٬ਸ ೧ࢲ оઉৡ ؘఠܳ ކٶ Java ёী ইસפ.
CPU৬ ݫݽܻܳ խ࠺ೞח ࣻച • ؘఠ߬झীࢲ ܐܳ ޙৌա ӝఋ ੋ٬ػ
ഋక۽ оઉ২פ. • ॳب ঋ ؘఠب оઉয়Ҋ ߸ജө Ѣଢ଼যਃ. • य ٣٬ਸ ೧ࢲ оઉৡ ؘఠܳ ކٶ Java ё ٘ ই સפ. • ॳب ঋਸ ؘఠܳ ࠗ द ߸ജೞҊ ކٶ ٘ী ওযਃ.
FlatBuffers • Facebook জীࢲ FlatBuffers (Google)ਸ بੑೞৈ ਬݺ೧.
Zero copy public long id() { int o = __offset(4);
return o != 0 ? bb.getLong(o + bb_pos) : 0; } public String name() { int o = __offset(6); return o != 0 ? __string(o + bb_pos) : null; } ByteBuffer bb = ByteBuffer.wrap(bytes); MyObject obj = MyObject.getRootAsMyObject(bb); long id = obj.id(); String name = obj.name();
• Realmب Zero copy അ rowী ೠ ࠁ ஸۢҗ ۽
ੋؙझী null ޙৌਸ पઁ ؘఠо ӟ ప࠶ ۽৬ ஸۢਸ ਊ೧ࢲ झ݂ਸ оҊ ১
• RealmProxyObject name setName getName RealmObject realmGet$name realmSet$name RealmProxyObject •
Annotation Processing Tool সਸ न೧સפ.
Event Handling
ؘఠ ܴ݅ ࢤпೞۄ. 1. ۄب ߮ ӝ߈ ۽Ӓې߁. 2. ࢲߡ
ࢎ٘(RMP)ب ߮ ӝ߈ ۽Ӓې߁. ۄ ؘఠ ߸҃ ࢲߡ ࢎ٘ ؘఠ ߸҃ ࢲߡ ೩ٜ۞ ഐ ۄ ೩ٜ۞ ഐ
ۄ ؘఠ ߸҃ ࢲߡ ࢎ٘ ؘఠ ߸҃ ࢲߡ ೩ٜ۞ ഐ
ۄ ೩ٜ۞ ഐ
ۄ ؘఠ ߸҃ ࢲߡ ࢎ٘ ؘఠ ߸҃ ࢲߡ ೩ٜ۞ ഐ
ۄ ೩ٜ۞ ഐ
Good bye REST!
RMP Demo
None
Code
জ ࣗѐ (Scanner)
ࢎա ଼ਸ झப೧ࢲ
IBM Watson ࢲ࠺झܳ ج۰ࢲ…
೧ࢳػ Ѿҗܳ ߈ജפ.
None
ࢎਊо ࢎਸ ନणפ.
۽ஸ DBী زӝചؾפ.
۽ஸ DB৬ ࢲߡо زӝച
ࢲߡ ߮ ೩ٜ۞о ৌ݀פ
߮ ೩ٜ۞о ৲टী ܳ ׳פ.
৲ट ܳ ࠙ࢳפ -_-b
ܻ Ѿҗо ߮ ೩ٜ۞ীѱ ܻఢ
߮ ೩ٜ۞о DBܳ সؘ פ
ࢲߡ৬ ۽ஸ DBо زӝച
ۄ ߸҃ ܻझց ഐغҊ UIܳ јनפ
Scanner জ ࣗ https://github.com/realm-demos/realm-scanner name@realm.io
ݽ؛ Scanner, Swift
None
nullਸ ೲਊೞ ঋणפ.
?۽ աח ఋੑ null ೲਊ
ݽ؛ Scanner, Java
None
RealmObject ёܳ ࢚ࣘ.
nullਸ ೲਊೞ ঋח ٘.
ળ getters/setters ࣻח ইתפ.
ੋૐ (Java)
None
ই٣, ಁझਕ٘ܳ ׳೧ࢲ SyncCredetialsܳ ٟ݅פ.
۽Ӓੋ
ੋૐ ࢲߡ ҃۽
ࢿҕ
Realm ࢸ
ؘఠ ߬झ ҃۽
Realm ੋझఢझ
Realm ੋझఢझܳ ੜ ײद. (ۨಌ۠झ )
ੋૐ (Swift)
۽Ӓੋਸ פ.
Realm ࢸ
Realm ੋझఢझ
নೠ ੋૐ (Java)
None
নೠ ੋૐ (Swift)
None
ॳӝ
None
ॳӝী݅ ے࣌ ࢤࢿ
ݽ؛ਸ ਊೞৈ ੋझఢझ ࢤࢿ
Scan ੋझఢझ ࢚క ࣻ
߸҃ ҙܻܳ ਤೠ ߮ ܻझց ١۾ ࢲߡա জ ܲ ࠗ࠙ীࢲ
ؘఠо ߸҃غਸ ٸ ܻझցܳ ഐ. (iOS ҃ীח Key-Value Observationب ਗ.)
੍ӝ
ё оઉয়ӝ
ఠ݂җ ۳
߸҃ ঌܿ (Java)
߸҃ػ ёо ੋ۽ ׳ؽ.
߸҃ ঌܿ (Swift)
iOS ળ Key-Value Observation
߸҃ ঌܿ (ࢲߡ)
None
ࢲߡ ߮ ೩ٜ۞ܳ ٜ݅ ٸח ѐ షਸ ਊ೧ࢲ ۽Ӓੋ.
ߑӘ ݅ٚ admin_user৬ NOTIFIER_PATH ҃۽, ࢚ױ ߔਵ۽ ܻझցܳ ١۾.
change_event নೠ ࣘࢿਸ ਊ.
Realm ੋझఢझ
ੌ۲ ࢚ ё.
ੋؙझо ୶о, ઁ, ߸҃ ਵ۽ ࣁೞѱ ׳. Fine-grained notifications.
Thank you kr@realm.io realm.io/kr name@realm.io