Programação reativa functional com java 8
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This document discusses functional programming principles in Java 8 including immutability, pure functions, and referential transparency. It also covers reactive programming concepts like RxJava and Observables. The document provides an overview of these topics along with code examples and references to GitHub repositories containing sample source code.
Programação reativa functional com java 8
- 1. Programação Reativa Functional com Java 8 Diego Pacheco (@diego_pacheco) Principal Software Architect at ilegra
- 2. About Me Software Architect ~15 IT Experience ~9 SOA Experience ~6 DevOps ~5 FP ~ Scala in Production 2011 @diego_pacheco
- 7. Functional Programing Principles ❏ Immutability ❏ Disciplined State ❏ No Side Effects ❏ Pure Functions ❏ Function First and High Order Functions ❏ Referential Transparency
- 8. Immutability
- 10. No Side Effects
- 11. Pure Functions ❏ Does not change anything outside scope ❏ In other words: No Side Effects ❏ Same results with Same parameters ❏ Substitution / Refactoring ❏ Enable Referential Transparency ❏ CODE Readability / Expressiveness
- 12. First class Functions & High Order Functions
- 13. Referential Transparency ❏ Can be changed by VALUE without effects on behavior. ❏ No State -> Disciplined State ❏ No Side Effects ❏ Caching ❏ Easy to Debug
- 15. Lambda Function
- 16. Lambda Runnable
- 17. Lambda
- 18. Lambda Consumer
- 19. Lambda Producer
- 23. Lambda + Method Ref
- 25. Lambda + Generics + Functions
- 26. Lambda + Generics + Functions
- 27. Lambda + Streams
- 28. Streams
- 29. Advanced Streams = For Comprehensions
- 30. Recursion
- 31. Currying*
- 32. Monads
- 35. Rx
- 37. RxJava
- 38. RxJava
- 39. RxJava Samples
- 40. Observables
- 43. Issues and Lessons Learned ❏ Reactive Thinking ❏ Functions ❏ Drivers ❏ Not All available ❏ Write your own ❏ Error Handling ❏ Complex ❏ Losing Data
- 44. Java source code at Github https://github.com/diegopacheco/Diego-Pacheco-Sandbox/tree/master/scripts/java/java8-luna https://github.com/diegopacheco/Diego-Pacheco-Sandbox/tree/master/scripts/java/java8-fp
- 45. Programação Reativa Functional com Java 8 Diego Pacheco (@diego_pacheco) Principal Software Architect at ilegra