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Reactive extensions itjam
- 2. about me Kharkov – Ciklum (Scale Point) - .NET – podcasts – open source
- 6. Last update: June 29, 2011
- 8. rxmission “Rx is a library for composingasynchronous and event-based programs using observable collections.”
- 10. “observable” interfaceIObservable<out T> { IDisposableSubscribe(IObserver<T> observer);} interface IObserver<inT> { voidOnNext(T value); voidOnError(Exception ex); voidOnCompleted(); } interfaceIEnumerable<out T> { IEnumerator<T> GetEnumerator();} interface IEnumerator<out T> : IDisposable { boolMoveNext(); T Current { get; } void Reset(); }
- 11. Application Got next? MoveNext OnNext Have next! Interactive Reactive Environment IObservable<T> IObserver<T> IEnumerable<T> IEnumerator<T>
- 12. IDisposable interfaceIObservable<out T> { IDisposableSubscribe(IObserver<T> observer);} interface IObserver<inT> { voidOnNext(T value); voidOnError(Exception ex); voidOnCompleted(); }
- 14. Statements(If, Case, For, While, DoWhile)
- 15. Combinators(Merge, Zip, Amb, …)
- 19. demo
- 20. rxunit testing
- 21. more rx Rx Contribhttp://rxcontrib.codeplex.com/ Reactive Extensions - Extensions (Rxx)http://rxx.codeplex.com/ Rx Power Toys http://rxpowertoys.codeplex.com/
- 22. examples
- 26. rxin books
- 27. information Rx team blog http://blogs.msdn.com/rxteam DevLabshttp://msdn.microsoft.com/en-us/data/gg577609MSDN forums http://social.msdn.microsoft.com/Forums/en-US/rx Channel9 http://channel9.msdn.com/Tags/Rx Wiki http://rxwiki.wikidot.com
- 28. summary
- 29. questions? dimapasko@gmail.com pad@ciklum.net @dimapasko
Notas del editor
- давайте вспомним buzzwords: Azure, Silverlight, Windows Phone
- Speaker tips:The essential difference is who controls how the data is received.Philosophically this is nothing but how the application and the environment work together.Looking from the application’s point of view:Does it ask the environment – interactively – for data? enumerableDoes it passively wait for the environment to send data and react to it? observableBoth are complementary models. One doesn’t (aim to) replace the other.Matter of which one aligns more closely to which model:SQL’ s TDS protocol is pull-based, hence IE<T> is the best fit.Stock broker services may be push-based, hence IO<T> is a better match.Will see how one can convert between those.