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PROGRAMAÇÃO REATIVA COM RXJAVA Breno Ferreira @breno_ferreira http://www.github.com/brenoferreira
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FUNCTIONAL REACTIVE PROGRAMMING
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NA MAIOR PARTE DO TEMPO, ESTAMOS REAGINDO AO AMBIENTE
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• Dados de geolocalização (GPS) • Push notifications • Eventos complexos
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ITERATOR VS OBSERVER interface IEnumerable { IEnumerator GetEnumerator(); } interface IEnumerator { bool MoveNext(); //throws Ex T Current { get; } }
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ITERATOR VS OBSERVER interface IObservable { IEnumerator GetEnumerator(); } interface IEnumerator { bool MoveNext(); //throws Ex T Current { get; } }
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ITERATOR VS OBSERVER interface IObservable { IEnumerator GetEnumerator(); } interface IObserver { bool MoveNext(); //throws Ex T Current { get; } }
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ITERATOR VS OBSERVER interface IObservable { void Subscribe(IObserver observer); } interface IObserver { bool MoveNext(); //throws Ex T Current { get; } }
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ITERATOR VS OBSERVER interface IObservable { void Subscribe(IObserver observer); } interface IObserver { void OnNext(T item) T Current { get; } }
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ITERATOR VS OBSERVER interface IObservable { void Subscribe(IObserver observer); } interface IObserver { void OnNext(T item) void OnError(Exception ex) }
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ITERATOR VS OBSERVER interface IObservable { void Subscribe(IObserver observer); } interface IObserver { void OnNext(T item) void OnError(Exception ex) void OnCompleted() }
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O VERDADEIRO PODER DO RX • filtros (where, distinct, skip, take, all, any) • agregações (count, min, max, avg, sum, aggregate) • Transformações (map, flatMap) • Combinações (concat, merge, zip) • Schedulers
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RXJAVA Implementação do Rx for .NET em Java Feito pela Netflix Adaptors para Scala, Groovy, Clojure, JRuby
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HTTP://GITHUB.COM/NETFLIX/RXJAVA
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LIBRARYDEPENDENCIES ++= SEQ( "COM.NETFLIX.RXJAVA" % "RXJAVA-SCALA" % "0.9.0" )
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HTTPS://GITHUB.COM/BRENOFERREIRA/RXJAVATESTS
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PERGUNTAS?
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OBRIGADO! @breno_ferreira