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Programação Reativa
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Rodrigo Vidal
July 12, 2013
Programming
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Programação Reativa
TDC Floripa 2013
Rodrigo Vidal
July 12, 2013
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Transcript
PROGRAMAÇÃO REATIVA
VIDAL
COMO USAMOS EVENTOS HOJE?
RX
ERIK MEIJER
RX = OBSERVABLES + LINQ + SCHEDULERS 1. Um conjunto
de tipos que representam streams de dados assincronos 2. Um conjunto de operadores para realizar consultas em streams de dados assincronos 3. Um conjunto de tipos para parametrizar concorrência
0 2 4 6 8 10 12 0 2 4
6 8 10 12 Usefulness Safety C# Nirvana Haskell LINQ C#, VB, Java LINQ Nirvana Haskell F#
PROGRAMAÇÃO FUNCIONAL g(x) f(x)
FUNÇÕES DE ALTA ORDEM São funções que recebem uma(s) funções
como parâmetro e/ou que retornam funções
LINQ A REDENÇÃO DO C#
PULL-BASED COLLECTIONS
None
PUSH-BASED COLLECTIONS
None
D U A L I D A D E
EVENTOS VS. OBSERVABLES Observables são composicionais, eventos não.
LINQ APENAS EM IENUMERABLE<T>?
MODELO UNIFICADO
F# - EVENTOS DE PRIMEIRA CLASSE
Um Muitos Pull / Síncrono T / Lazy<T> IEnumerable<T> Push
/ Assíncrono Task<T> IObservable<T> RESUMINDO.....................
RX É A RESPOSTA! QUAL A PERGUNTA? Como orquestrar streams
de eventos e computações assíncronas ?