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Learning Reactive Programming with Java 8

By : Nickolay Tzvetinov
Book Image

Learning Reactive Programming with Java 8

By: Nickolay Tzvetinov

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Learning Reactive Programming with Java 8
Nickolay Tzvetinov
Jun, 2015 | 182 pages
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Table of Contents (15 chapters)
Learning Reactive Programming with Java 8
Learning Reactive Programming with Java 8
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
An Introduction to Reactive Programming
An Introduction to Reactive Programming
What is reactive programming?
Why should we be reactive?
Introducing RxJava
Summary
2
Using the Functional Constructions of Java 8
Using the Functional Constructions of Java 8
Lambdas in Java 8
Implementing the reactive sum example with lambdas
Pure functions and higher order functions
Summary
3
Creating and Connecting Observables, Observers, and Subjects
Creating and Connecting Observables, Observers, and Subjects
The Observable.from method
The Observable.just method
Other Observable factory methods
The Observable.create method
Subscribing and unsubscribing
Hot and cold Observable instances
The Subject instances
Summary
4
Transforming, Filtering, and Accumulating Your Data
Transforming, Filtering, and Accumulating Your Data
Observable transformations
Filtering data
Accumulating data
Summary
5
Combinators, Conditionals, and Error Handling
Combinators, Conditionals, and Error Handling
Combining the Observable instances
The conditional operators
Handling errors
An HTTP client example
Summary
6
Using Concurrency and Parallelism with Schedulers
Using Concurrency and Parallelism with Schedulers
RxJava's schedulers
Buffering, throttling, and debouncing
Summary
7
Testing Your RxJava Application
Testing Your RxJava Application
Testing using simple subscription
The BlockingObservable class
The aggregate operators and the BlockingObservable class
Testing with the aggregate operators and the BlockingObservable class
Using the TestSubscriber class for in-depth testing
Testing asynchronous Observable instances with the help of the TestScheduler class
Summary
8
Resource Management and Extending RxJava
Resource Management and Extending RxJava
Resource management
Caching data with Observable.cache
Creating custom operators with lift
Composing multiple operators with the Observable.compose operator
Summary
Index
Index

About the Author

Nickolay Tsvetinov is a professional all-round web developer at TransportAPI—Britain's first comprehensive open platform for transport solutions. During his career as a software developer, he experienced both good and bad and played with most of the popular programming languages—from C and Java to Ruby and JavaScript. For the last 3-4 years, he's been creating and maintaining single-page applications (SPA) and the backend API architectures that serve them. He is a fan of open source software, Rails, Vim, Sinatra, Ember.js, Node.js, and Nintendo. He was an unsuccessful musician and poet, but he is a successful husband and father. His area of interest and expertise includes the declarative/functional and reactive programming that resulted in the creation of ProAct.js (http://proactjs.com), which is a library that augments the JavaScript language and turns it into a reactive language.

First of all, I want to thank my wife, Tanya. I wrote this book because she told me that I was capable of doing this. She was with me all these months; I worked late at night and on weekends, but she didn't mind that. She also helped me with the content of this book. Thank you, Tanya; I love you and I dedicate this book to you. I want to thank my baby girl, Dalia. She is the one who makes me learn and do new things. One day, I want her to be proud of me—she is my sun. I want to thank my colleagues from TransportAPI, especially Dave, who helped me with my English, and Jonathan and Martin, who gave me the courage to finish the book.

I want to thank Astea Solutions, as they gave me space to write, as well as my parents, Georgi and Dimana, who did the same for me on weekends. Finally, I want to thank all my friends who supported me—Simeon, Rosen, Deyan, Pavel, my sister, Marina, and many more.

Thank you!

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