Upgrade to Pro — share decks privately, control downloads, hide ads and more …
Sign up for free

Michael Nitschinger on Building a reactive Couc...

Avatar for Enterprise Java User Group Austria Enterprise Java User Group Austria
September 29, 2015
Technology
170
0

Michael Nitschinger on Building a reactive Couchbase driver for the JVM

Avatar for Enterprise Java User Group Austria

Enterprise Java User Group Austria

September 29, 2015

More Decks by Enterprise Java User Group Austria

See All by Enterprise Java User Group Austria
Gerrit Grunwald on What the CRaC... SUPERFAST JVM STARTUP
Avatar for Enterprise Java User Group Austria ejug
2
230
Spring Framework 5.2 - Core Container Revisited
Avatar for Enterprise Java User Group Austria ejug
0
190
Andreas Caternberg on Jenkins Pipelines
Avatar for Enterprise Java User Group Austria ejug
1
830
Martin Ahrer on Continuous Delivery Infrastructure With Docker
Avatar for Enterprise Java User Group Austria ejug
0
180
Dirk Mahler on Software Analyse mit jQAssistant & Neo4j
Avatar for Enterprise Java User Group Austria ejug
1
320
Christoph Strobl on Spring Data & Hypermedia
Avatar for Enterprise Java User Group Austria ejug
0
170
Stefan Armbruster on Graph Modelling Antipatterns
Avatar for Enterprise Java User Group Austria ejug
1
150
Stefan Armbruster on Introduction into Neo4J
Avatar for Enterprise Java User Group Austria ejug
1
120
Michael Nitschinger on State of the art JVM networking with Netty
Avatar for Enterprise Java User Group Austria ejug
1
97

Other Decks in Technology

See All in Technology
Post AI時代のリファクタリング実践記 / Refactoring in the post AI era
Avatar for 株式会社カミナシ kaminashi
1
220
WasmをRustにする
Avatar for SansanTech sansantech
PRO
0
240
JAWSUG TOHOKU 青森支部 「LoGoチャット」のAWS移行で 乗り越えたこと
Avatar for たけだ taketakekaho
0
290
QA4AI 2026-Oct 生成AI時代の品質保証
Avatar for Takahiro Toku tokuty
1
800
【Data Engineering Summit2026_登壇資料】医療ビッグデータ×AIエージェントを支えるデータ基盤とハーネスエンジニアリング
Avatar for JMDC.Inc 登壇資料 jmdc_presentation
0
150
実体験から学ぶ分析エージェントの開発と運⽤
Avatar for Recruit recruitengineers
PRO
8
2.3k
Classmethod Company Deck
Avatar for Satoshi7 satoshi7
0
230
⾮構造化データを価値に変える AI エージェント基盤とその組織
Avatar for 株式会社IVRy（社員登壇資料） ivry_presentationmaterials
0
170
10年後、Engineering 行為を剥奪されるとして、わたしたちは、どう、何を創ればいいだろうか。 / If Engineering Is Taken Away in 10 Years, How and What Should We Create?
Avatar for 株式会社ビットキー / Bitkey Inc. bitkey
PRO
1
170
AIにシークレットを見せない、WSL2で安全な開発環境
Avatar for yazm4 yazm
0
240
夫婦で子育てするための育児標準化
Avatar for コドモン開発チーム codmoninc
PRO
0
210
PagerDuty Tech Hub-鳴らすけれど、人は動かない
Avatar for shinji ezaki ezaki
0
140

Featured

See All Featured
Faster Mobile Websites
Avatar for Dean Hume deanohume
310
32k
Marketing to machines
Avatar for Jono Alderson jonoalderson
1
5.9k
What’s in a name? Adding method to the madness
Avatar for The Alliance productmarketing
PRO
24
4.2k
Designing Powerful Visuals for Engaging Learning
Avatar for Mike Taylor tmiket
1
600
Breaking role norms: Why Content Design is so much more than writing copy - Taylor Woolridge
Avatar for UX Y'all uxyall
1
450
Efficient Content Optimization with Google Search Console & Apps Script
Avatar for Katarina Dahlin katarinadahlin
PRO
1
930
Making the Leap to Tech Lead
Avatar for Ryan Cromwell cromwellryan
135
10k
The Art of Programming - Codeland 2020
Avatar for Erika Heidi erikaheidi
57
14k
The MySQL Ecosystem @ GitHub 2015
Avatar for Sam Lambert samlambert
251
13k
Leading Effective Engineering Teams in the AI Era
Avatar for Addy Osmani addyosmani
9
2.7k
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
Avatar for mongodb mongodb
50
10k
Facilitating Awesome Meetings
Avatar for Lara Hogan lara
57
7.2k

Transcript

  1. A  Retrospective:     Couchbase  on  the  JVM   or

     how  we’ve  built  the  first  reactive  driver  and  still  love  it       Michael  Nitschinger,  SDK  Engineer  

  2. ©2015  Couchbase  Inc.   2   Some  History  

  3. ©2015  Couchbase  Inc.   3   Memcached  

  4. ©2015  Couchbase  Inc.   4   Memcached  

  5. ©2015  Couchbase  Inc.   5   Membase  +  CouchOne  =

     

  6. ©2015  Couchbase  Inc.   6   =  Couchbase  

  7. ©2015  Couchbase  Inc.   7   Java  SDK  1.x  

    § Extends  Spymemcached   § Adds  Config  &  View  Capabilities   § Stable  &  Mature   § Old  codebase,  difficult  to  maintain  and  evolve   § API  grew  organically  

  8. ©2015  Couchbase  Inc.   8   Spymemcached   §  Initial

     Work  Started  mid  2006  (Java  5)   §  No  Generics   §  Memcached  ASCII  Protocol  

  9. ©2015  Couchbase  Inc.   9   API  Inconsistencies  

  10. ©2015  Couchbase  Inc.   10   Reworking  the  API  

  11. ©2015  Couchbase  Inc.   11   From  Key  Value  to

     Documents   Key   Value   Views   N1QL   Search   mcd   ✔   1.8   ✔   2.0   ✔   ✔   3.0   ✔   ✔   4.0   ✔   ✔   ✔   .next   ✔   ✔   ✔   ✔  

  12. ©2015  Couchbase  Inc.   12   Reworking  the  API  –

     The  Document  

  13. ©2015  Couchbase  Inc.   13   Reworking  the  API  –

     2.x  

  14. ©2015  Couchbase  Inc.   14   Reworking  the  API  

  15. ©2015  Couchbase  Inc.   15   Rx  Semantics   single

      multiple   sync   T   Iterable<T>   async   Future<T>   Observable<T>  

  16. ©2015  Couchbase  Inc.   16   Rx  Semantics   Event

      Iterable<T>   Observable<T>   data  retrieval   T  next()   onNext(T)   discover  error   throws  Exception   onError(Throwable)   complete   returns   onCompleted()  

  17. ©2015  Couchbase  Inc.   17   Consuming  Observables   17

      §  The  Observer  subscribes     and  receives  events.   §  A  cold  Observable   starts  when  subscribed.   §  onNext  can  be  called   0..N  times  

  18. ©2015  Couchbase  Inc.   18   RxJava:  Creating  Observables  

    just 18  

  19. ©2015  Couchbase  Inc.   19   RxJava:  Creating  Observables  

    19  

  20. ©2015  Couchbase  Inc.   20   RxJava:  Creating  Observables  

    20  

  21. ©2015  Couchbase  Inc.   21   RxJava:  Creating  Observables  

    21  

  22. ©2015  Couchbase  Inc.   22   RxJava:  Creating  Observables  

    22  

  23. ©2015  Couchbase  Inc.   23   RxJava:  Creating  Observables  

    23  

  24. ©2015  Couchbase  Inc.   24   RxJava:  Transforming  Observables  

    24  

  25. ©2015  Couchbase  Inc.   25   RxJava:  Transforming  Observables  

    25  

  26. ©2015  Couchbase  Inc.   26   RxJava:  Transforming  Observables  

    26  

  27. ©2015  Couchbase  Inc.   27   RxJava:  Transforming  Observables  

    27  

  28. ©2015  Couchbase  Inc.   28   RxJava:  Transforming  Observables  

    28  

  29. ©2015  Couchbase  Inc.   29   RxJava:  Transforming  Observables  

    29  

  30. ©2015  Couchbase  Inc.   30   RxJava:  Transforming  Observables  

    30  

  31. ©2015  Couchbase  Inc.   31   RxJava:  Transforming  Observables  

    31  

  32. ©2015  Couchbase  Inc.   32   RxJava:  Transforming  Observables  

    32  

  33. ©2015  Couchbase  Inc.   33   RxJava:  Filtering  Observables  

    33  

  34. ©2015  Couchbase  Inc.   34   RxJava:  Filtering  Observables  

    34  

  35. ©2015  Couchbase  Inc.   35   RxJava:  Filtering  Observables  

    35  

  36. ©2015  Couchbase  Inc.   36   RxJava:  Filtering  Observables  

    36  

  37. ©2015  Couchbase  Inc.   37   Simple  Query   37

     

  38. ©2015  Couchbase  Inc.   38   Parameterized  Query   38

      §  Named  Params  

  39. ©2015  Couchbase  Inc.   39   Parametrized  Query   39

      §  Positional  Params  

  40. ©2015  Couchbase  Inc.   40   Conditional  Index  Creation  

    40  

  41. ©2015  Couchbase  Inc.   41   Coordinated  Fallback   41

     

  42. ©2015  Couchbase  Inc.   42   Coordinated  Retry:  Builder  

    42   §  Declarative  API  instead  of  complicated  retryWhen  

  43. ©2015  Couchbase  Inc.   43   Levelling  up  the  Architecture

     

  44. ©2015  Couchbase  Inc.   44   Why  Reactive?   44

     

  45. ©2015  Couchbase  Inc.   45   Java  !=  JVM  

  46. ©2015  Couchbase  Inc.   46   Architecture  

  47. ©2015  Couchbase  Inc.   47   Smart  Batching  

  48. ©2015  Couchbase  Inc.   48   Backpressure  

  49. ©2015  Couchbase  Inc.   49   Netty  

  50. ©2015  Couchbase  Inc.   50   Netty  –  In  the

     next  Session!