Upgrade to Pro — share decks privately, control downloads, hide ads and more …

SOLID - Dependency inversion principle

Avatar for Amanda Amanda
October 09, 2018
Technology
0
86

SOLID - Dependency inversion principle

Avatar for Amanda

Amanda

October 09, 2018
Tweet

More Decks by Amanda

See All by Amanda
Lessons Learned From an Elixir OTP Project
Avatar for Amanda amandasposito
2
94
Aprendizados de um projeto Elixir OTP
Avatar for Amanda amandasposito
4
600
Como concorrência funciona em Elixir?
Avatar for Amanda amandasposito
1
230
Programação Funcional & Elixir
Avatar for Amanda amandasposito
3
130
Ecto, você sabe o que é ?
Avatar for Amanda amandasposito
4
240
Novidades no Rails 5
Avatar for Amanda amandasposito
0
100
Rails Engines & RSpec
Avatar for Amanda amandasposito
0
230
Elixir e Phoenix
Avatar for Amanda amandasposito
3
580
Elixir em 5 minutos
Avatar for Amanda amandasposito
1
97

Other Decks in Technology

See All in Technology
今こそ学びたいKubernetesネットワーク ～CNIが繋ぐNWとプラットフォームの「フラッと」な対話
Avatar for Takuto Nagami logica0419
9
760
22nd ACRi Webinar - 1Finity Tamura-san's slide
Avatar for Nao Sumikawa nao_sumikawa
0
130
Agent Skils
Avatar for ディップ株式会社 dip_tech
PRO
0
200
Generative UI を試そう！A2-UIでAIエージェントにダッシュボードを作らせてみた
Avatar for Kamoshika kamoshika
1
220
LLMOpsのこれまでとこれからを学ぶ
Avatar for Satsuki Nagae nsakki55
2
620
Oracle Base Database Service 技術詳細
Avatar for oracle4engineer oracle4engineer
PRO
15
94k
Open Table Formatにおけるストレージ抽象化の比較
Avatar for LINEヤフーTech (LY Corporation Tech) lycorptech_jp
PRO
1
180
『誰の責任？』で揉めるのをやめて、エラーバジェットで判断するようにした ～感情論をデータで終わらせる、PMとエンジニアの意思決定プロセス～
Avatar for coconala_engineer coconala_engineer
0
870
xDS を活用したサービスディスカバリーで実現するブランチ別 QA 環境の構築手法
Avatar for Kenta Takahashi knwoop
1
160
衛星画像即時マッピングサービスの実現に向けて
Avatar for Yuji Kobayashi lehupa
1
280
AI駆動開発を事業のコアに置く
Avatar for 鬼澤輔 tasukuonizawa
1
1.6k
LiDARが変えたARの"距離感"
Avatar for ZOZO Developers zozotech
PRO
0
260

Featured

See All Featured
10 Git Anti Patterns You Should be Aware of
Avatar for Lemi Orhan Ergin lemiorhan
PRO
659
61k
How to Talk to Developers About Accessibility
Avatar for Jason CranfordTeague jct
2
140
技術選定の審美眼（2025年版） / Understanding the Spiral of Technologies 2025 edition
Avatar for Takuto Wada twada
PRO
117
110k
SEOcharity - Dark patterns in SEO and UX: How to avoid them and build a more ethical web
Avatar for Sara Fernández Carmona sarafernandez
0
130
For a Future-Friendly Web
Avatar for Brad Frost brad_frost
183
10k
ピンチをチャンスに：未来をつくるプロダクトロードマップ #pmconf2020
Avatar for Aki / @LoveIdahoBurger aki_iinuma
128
55k
Collaborative Software Design: How to facilitate domain modelling decisions
Avatar for Kenny Baas-Schwegler baasie
0
150
Exploring the relationship between traditional SERPs and Gen AI search
Avatar for Ray Grieselhuber raygrieselhuber
PRO
2
3.7k
Optimizing for Happiness
Avatar for Tom Preston-Werner mojombo
379
71k
Let's Do A Bunch of Simple Stuff to Make Websites Faster
Avatar for Chris Coyier chriscoyier
508
140k
Agile Actions for Facilitating Distributed Teams - ADO2019
Avatar for Mark Kilby mkilby
0
120
The Curse of the Amulet
Avatar for Matthew Lei leimatthew05
1
9k

Transcript

  1. SOLID Dependency Inversion Principle

  2. O que é? Onde vive?

  3. Falando um pouco de SOLID...

  4. Imagine um cenário

  5. Temos um software novo para escrever

  6. No começo é aquela alegria

  7. None

  8. As mudanças são simples, a velocidade é boa

  9. None
  10. None

  11. Fragilidade "Tendência do software de quebrar em vários lugares sempre

    que é alterado. Geralmente em lugares não relacionados conceitualmente com o local da mudança."

  12. Rigidez "Tendência do software de ser difícil de mudar. Qualquer

    mudança gera várias mudanças em sequência." https://fi.ort.edu.uy/innovaportal/file/2032/1/design_principles.pdf

  13. "Abstrações não devem depender de detalhes. Detalhes devem depender de

    abstrações."
  14. None

  15. class Copier def self.copy reader = KeyboardReader.new writer = Printer.new

    keystrokes = reader.read_until_eof writer.write(keystrokes) end end

  16. class Copier def initialize(reader, writer) @reader = reader @writer =

    writer end def copy @writer.write(@reader.read_until_eof) end end
  17. None