Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
なぜ変更を検知できるDBが必要なのか
Search
Sponsored
·
Ship Features Fearlessly
Turn features on and off without deploys. Used by thousands of Ruby developers.
→
Shun Hosaka
July 14, 2017
Programming
140
1
Share
なぜ変更を検知できるDBが必要なのか
第4回スタートアップAndroid勉強会 - スタートアップにおけるアーキテクチャとの向き合い方 -の発表資料
Shun Hosaka
July 14, 2017
More Decks by Shun Hosaka
See All by Shun Hosaka
Android Goodbye `shape`
reyurnible
0
450
独自設計のAndroidアプリを設計ごとKotlinizeした話
reyurnible
1
1.5k
Kotlin + Kodein Test Data Mocking
reyurnible
1
680
RxDownloader
reyurnible
0
120
Other Decks in Programming
See All in Programming
リセットCSSを1行消したらアクセシビリティが向上した話
pvcresin
4
530
AWSはOSSをどのように 考えているのか?
akihisaikeda
1
140
Agentic AI & UI: Arcitecture, HITL, Emerging Standards
manfredsteyer
PRO
0
130
AI駆動開発勉強会 広島支部 第一回勉強会 AI駆動開発概要とワークショップ
hayatoshimiu
0
350
密結合なバックエンドから TypeScript のコードを生成する
kemuridama
1
320
oxlintはeslint/typescript-eslintを置き換えられるのか
shomafujita
2
180
Agent Skills を社内で育てる仕組み作り
jackchuka
1
2.3k
関係性から理解する"同一性"の型用語たち
pvcresin
2
490
実践ハーネスエンジニアリング:ステアリングループを実例から読み解く / Practical Harness Engineering: Understanding Steering Loops Through Real-World Examples
nrslib
6
6.2k
Migrations : C'est une question d'hygiène !
vinceamstoutz
0
1.1k
AIエージェントの隔離技術の徹底比較
kawayu
0
420
tsserverとは何だったのか、これからどうなるのか
nowaki28
1
350
Featured
See All Featured
My Coaching Mixtape
mlcsv
0
130
Discover your Explorer Soul
emna__ayadi
2
1.1k
GraphQLとの向き合い方2022年版
quramy
50
15k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
333
22k
Chasing Engaging Ingredients in Design
codingconduct
0
190
Abbi's Birthday
coloredviolet
2
7.7k
Groundhog Day: Seeking Process in Gaming for Health
codingconduct
0
180
Stop Working from a Prison Cell
hatefulcrawdad
274
21k
The agentic SEO stack - context over prompts
schlessera
0
780
From π to Pie charts
rasagy
0
190
brightonSEO & MeasureFest 2025 - Christian Goodrich - Winning strategies for Black Friday CRO & PPC
cargoodrich
3
700
What Being in a Rock Band Can Teach Us About Real World SEO
427marketing
0
230
Transcript
ͳͥมߋΛݕͰ͖ΔDB ͕ඞཁͳͷ͔
؆୯ͳࣗݾհ • อࡔ ॣ • ৽ଔҰ • ݸਓࣄۀओ • Twitter:
@Reyurnible • https://github.com/Reyurnible
ࠓɺDBΛͬͯΞϓϦͷΠϕϯ τΩϟογϡΛྑ͘͢Δ͔͠Εͳ ͍
ͦͦɺσʔλϕʔε͍ͬͯ·͢ ͔ʁ
ελʔτΞοϓͱσʔλϕʔε • ࣮ίετ͕ߴ͍ • ϚΠάϨʔγϣϯͱ͔͍͜͠ • APTͰམͪͨΓΑ͘Θ͔Βͳ͍ΤϥʔʹҾ͔͔ͬΓ͕ͪ • εϨουͷ੍ͳͲɺAPIҎ্ʹ໘ •
ϥΠϒϥϦଟͯ͘ͲΕ͕͍͍ͷ͔Θ͔Βͳ͍ -> ͋·Γ࣮ͨ͘͠ͳ͍
σʔλϕʔεΛ࣮͠ͳ͍͚ͯ͘ͳ͍έʔε • ϩʔΧϧͰ࣋ͬͯஔ͔ͳ͚Ε͍͔Ͷ͍ใ͕͋Δ • ͦͦαʔόʔ͕ͳ͍ɺAPI͕ͳ͍
ࠓσʔλϕʔεͰΓ͍ͨ͜ͱ • ը໘ؒͷσʔλอ࣋ • ը໘ؒͷΠϕϯτॲཧ • ը໘෮ؼ࣌ͷσʔλॲཧ • σʔλͷΩϟογϡ ->
Ͳ͏͍ͯ͠·͔͢ʁ
ελʔτΞοϓͩͱ • σβΠϯͰղܾ • ը໘දࣔ͝ͱʹߋ৽ • αϙʔτ͠ͳ͍ -> ࣮͠ͳ͍͍ͯ͘ͷ͕Ұ൪͍͍
ͪΌΜͱαϙʔτΛ͠ͳ͍ͱ͍͚ͳ͘ ͳͬͨ࣌ͷ
ͦͦDBͰͲ͏ղܾ͢Δͷ͔
σʔλϕʔεͰΓ͍ͨ͜ͱ • ΞϓϦͷΩϟογϡ • ຖىಈ͝ͱͷηογϣϯใͷཧ • ΠϕϯτPubSubతͳͭ
DBܥϥΠϒϥϦͷτϨϯυ
ੲ͔Β͋ΔORMϥΠϒϥϦ • SQLite • ActiveAndroid • GreanDAO
࠷ۙͷORMϥΠϒϥϦDB • Room • Realm • Requery • SQL Brite
google / Room • Room provides an abstraction layer over
SQLite to allow fluent database access while harnessing the full power of SQLite • https://developer.android.com/topic/libraries/architecture/ room.html • RxJavaରԠ • LiveDataରԠ
square / SQL Brite • A lightweight wrapper around SQLiteOpenHelper
which introduces reactive stream semantics to SQL operations. • ⭐ 4100 • https://github.com/square/sqlbrite • RxJavaରԠ
realm / Realm • mobile database: a replacement for SQLite
& ORMs • ⭐ 8000 • https://github.com/realm/realm-java • RxJavaରԠ
requery / requery • modern SQL based query & persistence
for Java / Kotlin / Android • ⭐ 2000 • https://github.com/requery/requery • RxJavaରԠ
ײ͍ͯ͡ΔτϨϯυ • RxJavaରԠ • ςʔϒϧͷมߋͷݕ • KotlinରԠ
ςʔϒϧͷมߋΛݕͰ͖ΔDBͱ • INSERT, UPDATE, DELETEͳͲɺσʔλϕʔεʹมߋ͕͋ͬ ͨࡍʹΠϕϯτ௨Λͯ͘͠ΕΔ͜ͱ • RxJavaʹରԠ͍ͯ͠Δ͔͕1ͭͷ伴 -> ͜ΕΛઃܭʹΈࠐΉͱͲ͏ͳΔ͔ɻ
None
None
ίετΛͲ͏͑Δ͔ • LocalSourceͱɺContentProviderΛΦϯϝϞϦͰ࣮͓ͯ͠ ͘ • ୯७ͳBehaviroSubjectLiveDataͳͲ • ͦͷޙɺ༨༟͕Ͱ͖ͨλΠϛϯάͰஔ͖͑Λߦ͏ • ΞϓϦىಈ࣌ʹςʔϒϧͷ༰Λɺશͯഁغ͢Δ
• API͕͋Γɺηογϣϯͷใ͚ͩͰ͍͍߹
·ͱΊΔͱ • ࠷ۙͷDBɺσʔλͷมߋΛݕͰ͖Δ • DBͷ࣮͕ਏ͍߹ɺΦϯϝϞϦʔͰ͍͍ • ͰɺσʔλͷϑϩʔΛม͑ΒΕΔ༨Λ͓ͯ͘͠
ؔ࿈ϦϯΫ • googlesamples/android-architecture • RxJava + FluxʹΑΔAndroidΞϓϦઃܭ • SQLBrite͕ςʔϒϧมߋΛ௨͢ΔΈ