Rx Creating Operators, observeOn, subscribeOn
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This document discusses the observeOn and subscribeOn operators in RxJava. ObserveOn sets the Scheduler on which observers will observe the Observable. SubscribeOn sets the Scheduler on which the Observable will emit items. Several examples are provided to illustrate the difference between the two operators and how they affect the threading of Observable execution. Links to additional documentation resources on RxJava operators are also included.
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Rx Creating Operators, observeOn, subscribeOn
- 3. 초심으로 돌아가서… 화내지 말아주세요 ㅠ_ㅠ
- 4. Creating Operators • Create • Defer • Empty/Never/Throw • From • Interval • Just • Range • Repeat • Start • Timer
- 6. observeOn, subscribeOn Observable 이 동작할 Scheduler 를 지정 해당 Observable 을 observe(관찰) 할 옵저버의 Scheduler를 지정 http://reactivex.io/documentation/operators/observeon.html http://reactivex.io/documentation/operators/subscribeon.html
- 7. map 1 --> main subscribe --> main observeOn
- 8. observeOn
- 9. map 1 --> main subscribe --> RxIoScheduler-2 observeOn
- 10. observeOn
- 11. map 1 --> main map 2 --> main subscribe --> RxIoScheduler-2 observeOn
- 12. observeOn
- 13. observeOn
- 14. map 1 --> main map 2 --> RxIoScheduler-2 subscribe --> RxIoScheduler-2 observeOn
- 15. • ObserveOn • Observer (operator 혹은 subscriber) 의 observe(관찰, 혹은 동작) 스레드 지정 • observeOn 이 호출 된 후 ‘다시’ 호출되기 전까지 유지됨. observeOn
- 17. map 1 --> main map 2 --> RxIoScheduler-2 map 3 --> RxNewThreadScheduler-3 subscribe --> RxNewThreadScheduler-3 observeOn 동작되는 스레드를 아시겠나요?
- 18. subscribeOn map 1 --> main subscribe --> main
- 19. subscribeOn
- 20. subscribeOn map 1 --> RxIoScheduler-2 subscribe --> RxIoScheduler-2
- 22. subscribeOn
- 23. subscribeOn observable --> RxIoScheduler-2 map 1 --> RxIoScheduler-2 subscribe --> RxIoScheduler-2
- 24. subscribeOn observable --> RxIoScheduler-2 map 1 --> RxNewThreadScheduler-1 subscribe --> RxComputationScheduler-3
- 25. • subscribeOn • Observable 의 데이터 emit 의 스레드를 지정. • 여러번 subscribeOn을 하더라도 최초에 호출한 스레드를 유지함. subscribeOn
- 26. “끝”
- 27. • http://goo.gl/ztz2as • http://docs.couchbase.com/developer/java-2.0/observables.html • http://reactivex.io/documentation/operators.html#creating • https://github.com/ReactiveX/RxJava/wiki/Creating-Observables • http://reactivex.io/documentation/contract.html • http://reactivex.io/documentation/observable.html • http://tomstechnicalblog.blogspot.kr/2016/02/rxjava-understanding-observeon-and.html • http://reactivex.io/documentation/operators/observeon.html • http://reactivex.io/documentation/operators/subscribeon.html • https://github.com/square/retrofit/blob/d04f3a50e41ca01d22f370ac4f332f6ddf4ba9fe/retrofit-adapters/ rxjava/src/main/java/retrofit2/adapter/rxjava/RxJavaCallAdapterFactory.java