Realm advanced topics and demo

Transcript

1. 1.

   Part 3:
 Advanced topics and demo Leonardo YongUk Kim (lk@realm.io)

2. 2.

   • MVCC (RMD) • Zero Copy (RMD) • Event Handling

   (RMD + RMP) • RMP Demo (RMP)
3. 3.

   MVCC: Multi Version Concurrency Control

4. 4.

   ݒ਋ ௾ B+ ౟ܻ৬ MVCC • ݒ਋ ௾ B+ ౟ܻܳ

   ஸۢ ӝળਵ۽ ҳࢿ. • ߸҃ ࢎ೦ਸ MVCC(Multi Version Concurrency Control)۽ ҙܻ.
5. 5.

   ݒ਋ ௾ B+ ౟ܻ … ప੉࠶ ܖ౟ ஸۢਵ۽ࠗఠ ؘ੉ఠ

6. 6.

   ਫ਼Ӭ݅ਃ? ৵ ஸۢࠗఠભ? … ప੉࠶ ܖ౟ ஸۢਵ۽ࠗఠ ؘ੉ఠ

7. 7.

   ੋؙझ ੉ܴ ੉ݫੌ ੹ചߣഐ 1 ٣஠೐ܻয় d@realm.io 1004 2 ੐਷઱

   da@realm.io 1005 3 ѱ੉எ g@realm.io 1006 4 ш޹਋ 1@realm.io 1007
8. 8.

   ੋؙझ ੉ܴ ੉ݫੌ ੹ചߣഐ 1 ٣஠೐ܻয় d@realm.io 1004 2 ੐਷઱

   da@realm.io 1005 3 ѱ੉எ g@realm.io 1006 4 ш޹਋ 1@realm.io 1007 ੉ܴਵ۽ ઑഥ೮णפ׮.
9. 9.

   ੋؙझ ੉ܴ ੉ݫੌ ੹ചߣഐ 1 ٣஠೐ܻয় d@realm.io 1004 2 ੐਷઱

   da@realm.io 1005 3 ѱ੉எ g@realm.io 1006 4 ш޹਋ 1@realm.io 1007 ੹ా੸ੋ ؘ੉ఋ߬੉झח ೠ઴ ঀ ੷੢೤פ׮. -> நए ޷झ
10. 10.

    ੋؙझ ੉ܴ ੉ݫੌ ੹ചߣഐ 1 ٣஠೐ܻয় d@realm.io 1004 2 ੐਷઱

    da@realm.io 1005 3 ѱ੉எ g@realm.io 1006 4 ш޹਋ 1@realm.io 1007 ೠ઴ ঀ ੷੢ೞݶ ਊ۝੉ ݏ૑ ঋইࢲ ಁ٬ب ֍যঠ ೤פ׮.
11. 11.

    ੋؙझ ੉ܴ ੉ݫੌ ੹ചߣഐ 1 ٣஠೐ܻয় d@realm.io 1004 2 ੐਷઱

    da@realm.io 1005 3 ѱ੉எ g@realm.io 1006 4 ш޹਋ 1@realm.io 1007 ೠ઴ঀ ੷੢ೞݶ நए൤౟ਯ੉ ֫Ҋ ಁ٬੉ ೙ਃহযਃ.
12. 12.

    ׮઺ߡ੹ زदઁয(MVCC) A B C D F G E H

    I ߡ੹ 1 Root
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    ॳӝ ౟ے੥࣌਷ ࢜ झշࢫਸ ٟ݅פ׮. A B C D F

    G E H I E’ H’ C’ A’ Root ߡ੹ 2
14. 14.

    ॳӝ ઺ীب ੍ӝо оמ೤פ׮. A B C D F G

    E H I E’ H’ C’ A’ ߡ੹ 2 ॳӝ઺ ߡ੹ 1 ੍ӝ ઺
15. 15.

    ੍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 ઺
16. 16.

    উ੹೤פ׮ A B C D F G E H I

    E’ C’ A’ Root ߡ੹ 1 ੘ࢿ ઺ ೐ܻૉ ߊࢤ ߡ੹ 1਷ উ੹ ನੋఠب ৈ੹൤ ߡ੹ 1ਵ۽
17. 17.

    пӝ ׮ܲ झۨ٘ ۽ஸਸ о૘פ׮. 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
18. 18.

    ഒۆझ۞਎ ࣻ ੓ח झۨ٘ ۽ஸ • ߓఋ੸੉૑ ঋѱ ബਯ੸ਵ۽ ੍ӝ,

    ॳӝܳ ೞӝ ਤ೧
 ݫఋ ؘ੉ఠܳ झۨ٘ ױਤ۽ ੷੢.
 • ݫݽܻ ݗਵ۽ োѾػ ؘ੉ఠח ݣ౭ झۨ٘۽ ҕਬغҊ ੓਺.
 • ׮݅ झۨ٘ ۽ஸ۽ ৌܽ Realm, RealmList, RealmResults, RealmObject ё୓ܳ ׮ܲ झۨ٘۽ ੹׳ೡ ࣻ হ਺.
 • ׮ܲ झۨ٘ীࢲ ௪ܻܳ ೞݶ ݣ౭ झۨ٘ ੗ܐ ҕਬ ؋ী ߄۽ ੍਺.
19. 19.

    Zero copy

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    җѢ ಕ੉झ࠘ জ੄ ޙઁ੼ • JSON ੋ௏٬җ ٣௏٬ী ݆਷ ܻࣗझܳ

    ೲ࠺.
 • ࢎਊغ૑ ঋ਷ ؘ੉ఠب ٣௏٬ਸ ೧ࢲ Java ё୓ী ׸ওযঠ ೣ.
 • ೧Ѿ଼: ҳӖ੄ FlatBuffersܳ ॳ੗.
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    ੹ా੸ੋ ࣻച (Hydrate) • ؘ੉ఠ߬੉झীࢲ ੗ܐܳ ޙ੗ৌ੉ա ӝఋ ੋ௏٬ ػ

    ഋక۽ оઉ২פ׮.
 • ౵य ഑਷ ٣௏٬ਸ ೧ࢲ оઉৡ ؘ੉ఠܳ ކٶ Java ё୓ী ׸ইસפ׮.
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    CPU৬ ݫݽܻܳ խ࠺ೞח ࣻച • ؘ੉ఠ߬੉झীࢲ ੗ܐܳ ޙ੗ৌ੉ա ӝఋ ੋ௏٬ػ

    ഋక۽ оઉ২פ׮. • ॳ૑ب ঋ਷ ؘ੉ఠب ׮ оઉয়Ҋ ߸ജө૑ Ѣଢ଼যਃ.
 • ౵य ഑਷ ٣௏٬ਸ ೧ࢲ оઉৡ ؘ੉ఠܳ ކٶ Java ё୓੄ ೙٘ ׸ই સפ׮. • ॳ૑ب ঋਸ ؘ੉ఠܳ ੹ࠗ ׮द ߸ജೞҊ ކٶ ೙٘ী ׸ওযਃ.
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    FlatBuffers • Facebook জীࢲ FlatBuffers (Google)ਸ بੑೞৈ ਬݺ೧૗.

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    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();

25. 25.

    • Realmب Zero copy അ੤ rowী ؀ೠ ੿ࠁ ஸۢҗ ۽਋੄

    ੋؙझী null ഑਷ ޙ੗ৌਸ ੷੢ पઁ ؘ੉ఠо ׸ӟ ప੉࠶ ۽਋৬ ஸۢਸ ੉ਊ೧ࢲ झ౟݂ਸ о૑Ҋ ১
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    • RealmProxyObject name setName getName RealmObject realmGet$name realmSet$name RealmProxyObject •

    Annotation Processing Tool੉ ੉ ੘সਸ ؀न೧સפ׮.
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    Event Handling

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    ؘ੉ఠ੄ ൒ܴ݅ ࢤпೞۄ. 1. ௿ۄ੉঱౟ب ੉߮౟ ӝ߈੄ ೐۽Ӓې߁. 2. ࢲߡ

    ࢎ੉٘(RMP)ب ੉߮౟ ӝ߈੄ ೐۽Ӓې߁. ௿ۄ੉঱౟
 ؘ੉ఠ ߸҃ ࢲߡ ࢎ੉٘
 ؘ੉ఠ ߸҃ ࢲߡ
 ೩ٜ۞ ഐ୹ ௿ۄ੉঱౟
 ೩ٜ۞ ഐ୹
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    ௿ۄ੉঱౟
 ؘ੉ఠ ߸҃ ࢲߡ ࢎ੉٘
 ؘ੉ఠ ߸҃ ࢲߡ
 ೩ٜ۞ ഐ୹

    ௿ۄ੉঱౟
 ೩ٜ۞ ഐ୹
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    ௿ۄ੉঱౟
 ؘ੉ఠ ߸҃ ࢲߡ ࢎ੉٘
 ؘ੉ఠ ߸҃ ࢲߡ
 ೩ٜ۞ ഐ୹

    ௿ۄ੉঱౟
 ೩ٜ۞ ഐ୹
31. 31.

    Good bye REST!

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    RMP Demo

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    None
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    Code

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    জ ࣗѐ
 (Scanner)

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    ࢎ૓੉ա ଼ਸ झப೧ࢲ

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    IBM Watson ࢲ࠺झܳ ج۰ࢲ…

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    ೧ࢳػ Ѿҗܳ ߈ജ೤פ׮.

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    None
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    ࢎਊ੗о ࢎ૓ਸ ନणפ׮.

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    ۽ஸ DBী زӝചؾפ׮.

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    ۽ஸ DB৬ ࢲߡо زӝച

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    ࢲߡ੄ ੉߮౟ ೩ٜ۞о ৌ݀פ׮

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    ੉߮౟ ೩ٜ۞о ৲टী ੉޷૑ܳ ੹׳೤פ׮.

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    ৲ट੉ ੉޷૑ܳ ࠙ࢳ೤פ׮ -_-b

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    ୊ܻ Ѿҗо ੉߮౟ ೩ٜ۞ীѱ ܻఢ

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    ੉߮౟ ೩ٜ۞о DBܳ সؘ੉౟ ೤פ׮

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    ࢲߡ৬ ۽ஸ DBо زӝച

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    ௿ۄ੉঱౟੄ ߸҃ ܻझց ഐ୹غҊ UIܳ јन೤פ׮

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    Scanner জ ੷੢ࣗ https://github.com/realm-demos/realm-scanner name@realm.io

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    ݽ؛ Scanner, Swift

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    None
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    nullਸ ೲਊೞ૑ ঋणפ׮.

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    ?۽ ՘աח ఋੑ਷ null ೲਊ

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    ݽ؛ Scanner, Java

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    None
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    RealmObject ё୓ܳ ࢚ࣘ.

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    nullਸ ೲਊೞ૑ ঋח ೙٘.

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    ಴ળ getters/setters ೙ࣻח ইתפ׮.

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    ੋૐ (Java)

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    None
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    ই੉٣, ಁझਕ٘ܳ ੹׳೧ࢲ SyncCredetialsܳ ٟ݅פ׮.

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    ۽Ӓੋ

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    ੋૐ ࢲߡ ҃۽

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    ࢿҕ

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    Realm ࢸ੿

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    ؘ੉ఠ ߬੉झ੄ ҃۽

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    Realm ੋझఢझ

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    Realm ੋझఢझܳ ੜ ײ਻द׮.
 (ۨಌ۠झ ஠਍౟)

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    ੋૐ (Swift)

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    ۽Ӓੋਸ ೤פ׮.

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    Realm ࢸ੿

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    Realm ੋझఢझ

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    ׮নೠ ੋૐ (Java)

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    None
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    ׮নೠ ੋૐ (Swift)

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    None
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    ॳӝ

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    None
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    ॳӝী݅ ౟ے੥࣌ ࢤࢿ

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    ݽ؛ਸ ੉ਊೞৈ ੋझఢझ ࢤࢿ

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    Scan ੋझఢझ੄ ࢚క ࣻ੿

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    ߸҃ ҙܻܳ ਤೠ ੉߮౟ ܻझց ١۾ ࢲߡա জ੄ ׮ܲ ࠗ࠙ীࢲ

    ؘ੉ఠо ߸҃غ঻ਸ ٸ ܻझցܳ ഐ୹. (iOS੄ ҃਋ীח Key-Value Observationب ૑ਗ.)
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    ੍ӝ

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    ё୓ оઉয়ӝ

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    ೙ఠ݂җ ੿۳

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    ߸҃ ঌܿ (Java)

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    ߸҃ػ ё୓о ੋ੗۽ ੹׳ؽ.

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    ߸҃ ঌܿ (Swift)

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    iOS੄ ಴ળ Key-Value Observation

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    ߸҃ ঌܿ (ࢲߡ)

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    None
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    ࢲߡ ੉߮౟ ೩ٜ۞ܳ ٜ݅ ٸח ؀ѐ ష௾ਸ ੉ਊ೧ࢲ ۽Ӓੋ.

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    ߑӘ ݅ٚ admin_user৬ NOTIFIER_PATH ҃۽, ࢚ױ੄ ௒ߔਵ۽ ܻझցܳ ١۾.

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    change_event੄ ׮নೠ ࣘࢿਸ ੉ਊ.

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    Realm ੋझఢझ

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    ੌ۲੄ ؀࢚ ё୓.

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    ੋؙझо ୶о, ࢏ઁ, ߸҃ ૘೤ਵ۽
 ࣁ޻ೞѱ ੹׳. Fine-grained notifications.

99. 99.

    Thank you kr@realm.io realm.io/kr name@realm.io