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
Michael Nitschinger on Building a reactive Couc...
Search
Enterprise Java User Group Austria
September 29, 2015
Technology
0
100
Michael Nitschinger on Building a reactive Couchbase driver for the JVM
Enterprise Java User Group Austria
September 29, 2015
Tweet
Share
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
ejug
2
93
Spring Framework 5.2 - Core Container Revisited
ejug
0
120
Andreas Caternberg on Jenkins Pipelines
ejug
0
530
Martin Ahrer on Continuous Delivery Infrastructure With Docker
ejug
0
120
Dirk Mahler on Software Analyse mit jQAssistant & Neo4j
ejug
1
220
Christoph Strobl on Spring Data & Hypermedia
ejug
0
81
Stefan Armbruster on Graph Modelling Antipatterns
ejug
1
90
Stefan Armbruster on Introduction into Neo4J
ejug
1
74
Michael Nitschinger on State of the art JVM networking with Netty
ejug
1
51
Other Decks in Technology
See All in Technology
あれは良かった、あれは苦労したB2B2C型SaaSの新規開発におけるCloud Spanner
hirohito1108
2
590
分解して理解する Aspire
nenonaninu
1
140
技術的負債解消の取り組みと専門チームのお話 #技術的負債_Findy
bengo4com
1
1.3k
アジャイル開発とスクラム
araihara
0
170
なぜ私は自分が使わないサービスを作るのか? / Why would I create a service that I would not use?
aiandrox
0
740
エンジニアのためのドキュメント力基礎講座〜構造化思考から始めよう〜(2025/02/15jbug広島#15発表資料)
yasuoyasuo
17
6.8k
オブザーバビリティの観点でみるAWS / AWS from observability perspective
ymotongpoo
8
1.5k
偶然 × 行動で人生の可能性を広げよう / Serendipity × Action: Discover Your Possibilities
ar_tama
1
1.1k
クラウドサービス事業者におけるOSS
tagomoris
1
820
エンジニアの育成を支える爆速フィードバック文化
sansantech
PRO
3
1.1k
運用しているアプリケーションのDBのリプレイスをやってみた
miura55
1
720
N=1から解き明かすAWS ソリューションアーキテクトの魅力
kiiwami
0
130
Featured
See All Featured
10 Git Anti Patterns You Should be Aware of
lemiorhan
PRO
656
59k
Reflections from 52 weeks, 52 projects
jeffersonlam
348
20k
The Cost Of JavaScript in 2023
addyosmani
47
7.3k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
330
21k
Six Lessons from altMBA
skipperchong
27
3.6k
I Don’t Have Time: Getting Over the Fear to Launch Your Podcast
jcasabona
32
2.1k
Speed Design
sergeychernyshev
27
790
Fontdeck: Realign not Redesign
paulrobertlloyd
83
5.4k
The Illustrated Children's Guide to Kubernetes
chrisshort
48
49k
The Cult of Friendly URLs
andyhume
78
6.2k
CSS Pre-Processors: Stylus, Less & Sass
bermonpainter
356
29k
The Language of Interfaces
destraynor
156
24k
Transcript
A Retrospective: Couchbase on the JVM or
how we’ve built the first reactive driver and still love it Michael Nitschinger, SDK Engineer
©2015 Couchbase Inc. 2 Some History
©2015 Couchbase Inc. 3 Memcached
©2015 Couchbase Inc. 4 Memcached
©2015 Couchbase Inc. 5 Membase + CouchOne =
©2015 Couchbase Inc. 6 = Couchbase
©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
©2015 Couchbase Inc. 8 Spymemcached § Initial
Work Started mid 2006 (Java 5) § No Generics § Memcached ASCII Protocol
©2015 Couchbase Inc. 9 API Inconsistencies
©2015 Couchbase Inc. 10 Reworking the API
©2015 Couchbase Inc. 11 From Key Value to
Documents Key Value Views N1QL Search mcd ✔ 1.8 ✔ 2.0 ✔ ✔ 3.0 ✔ ✔ 4.0 ✔ ✔ ✔ .next ✔ ✔ ✔ ✔
©2015 Couchbase Inc. 12 Reworking the API –
The Document
©2015 Couchbase Inc. 13 Reworking the API –
2.x
©2015 Couchbase Inc. 14 Reworking the API
©2015 Couchbase Inc. 15 Rx Semantics single
multiple sync T Iterable<T> async Future<T> Observable<T>
©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()
©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
©2015 Couchbase Inc. 18 RxJava: Creating Observables
just 18
©2015 Couchbase Inc. 19 RxJava: Creating Observables
19
©2015 Couchbase Inc. 20 RxJava: Creating Observables
20
©2015 Couchbase Inc. 21 RxJava: Creating Observables
21
©2015 Couchbase Inc. 22 RxJava: Creating Observables
22
©2015 Couchbase Inc. 23 RxJava: Creating Observables
23
©2015 Couchbase Inc. 24 RxJava: Transforming Observables
24
©2015 Couchbase Inc. 25 RxJava: Transforming Observables
25
©2015 Couchbase Inc. 26 RxJava: Transforming Observables
26
©2015 Couchbase Inc. 27 RxJava: Transforming Observables
27
©2015 Couchbase Inc. 28 RxJava: Transforming Observables
28
©2015 Couchbase Inc. 29 RxJava: Transforming Observables
29
©2015 Couchbase Inc. 30 RxJava: Transforming Observables
30
©2015 Couchbase Inc. 31 RxJava: Transforming Observables
31
©2015 Couchbase Inc. 32 RxJava: Transforming Observables
32
©2015 Couchbase Inc. 33 RxJava: Filtering Observables
33
©2015 Couchbase Inc. 34 RxJava: Filtering Observables
34
©2015 Couchbase Inc. 35 RxJava: Filtering Observables
35
©2015 Couchbase Inc. 36 RxJava: Filtering Observables
36
©2015 Couchbase Inc. 37 Simple Query 37
©2015 Couchbase Inc. 38 Parameterized Query 38
§ Named Params
©2015 Couchbase Inc. 39 Parametrized Query 39
§ Positional Params
©2015 Couchbase Inc. 40 Conditional Index Creation
40
©2015 Couchbase Inc. 41 Coordinated Fallback 41
©2015 Couchbase Inc. 42 Coordinated Retry: Builder
42 § Declarative API instead of complicated retryWhen
©2015 Couchbase Inc. 43 Levelling up the Architecture
©2015 Couchbase Inc. 44 Why Reactive? 44
©2015 Couchbase Inc. 45 Java != JVM
©2015 Couchbase Inc. 46 Architecture
©2015 Couchbase Inc. 47 Smart Batching
©2015 Couchbase Inc. 48 Backpressure
©2015 Couchbase Inc. 49 Netty
©2015 Couchbase Inc. 50 Netty – In the
next Session!