Reactive Java Programming

✍ Scribed by Maglie, Andrea

• Publisher: Apress
• Year: 2016
• Tongue: English
• Leaves: 115
• Edition: 1st ed. 2016
• Category: Library

✦ Synopsis

Learn reactive programming using Java and its functional aspects, sometimes called RxJava. This book shows you how to solve "callback hell" with RxJava and shows you how to write thread-safe code without hanging onto state variables which comes in handy for cloud computing software-as-a-service issues, especially when dealing with big data processes through streaming.



Reactive Java Programmingincludes unique coverage of reactive Android programming, growing more and more popular in mobile development with the Cloud. After reading this guide to reactive programming, you'll be able to apply it to your own big data cloud applications that use Java.




What You'll Learn




Use and map observables
Filter and combine events
Employ subjects, schedulers, and backpressure
Handle reactive patterns
Test your RxJava code
Write your own operators
Carry out reactive Android programming





Who This Book Is For

Experienced Java programmers new to reactive programming and those who may have some experience with reactive programming new to Java.

✦ Table of Contents

Contents at a Glance......Page 5
Contents......Page 6
About the Author......Page 10
About the Technical Reviewer......Page 11
Acknowledgments......Page 12
Introduction......Page 13
Imperative and Functional Programming......Page 14
Lambda Expressions......Page 16
Reactive Programming......Page 17
The Observer Pattern......Page 18
What’s ReactiveX?......Page 19
What’s RxJava?......Page 20
Adding RxJava to Your Project......Page 23
Definition of Observer......Page 24
onNext, onCompleted, onError......Page 25
Hot and Cold Observables......Page 27
Observable.just()......Page 28
Observable.interval()......Page 29
Observable.create()......Page 30
Observable.never()......Page 31
Observable.defer()......Page 32
map......Page 34
flatMap......Page 36
concatMap......Page 37
zip......Page 38
concat......Page 39
filter......Page 41
first......Page 42
last......Page 43
take......Page 45
startWith......Page 46
scan......Page 47
Operators for Filtering Observables......Page 48
Operators for Combining Observables......Page 49
Error Handling......Page 52
Handling Errors in the onError() Method......Page 53
Ignoring the Exception and Continuing with Item Emission......Page 54
Retry......Page 57
Schedulers......Page 60
Transformers......Page 64
Advanced Use of Schedulers......Page 65
sample......Page 66
debounce......Page 67
Window......Page 68
Handling Backpressure Inside the Subscriber......Page 70
Chapter 4: Subjects......Page 71
PublishSubject......Page 73
BehaviorSubject......Page 76
ReplaySubject......Page 79
AsyncSubject......Page 80
When Should You Use Subjects?......Page 82
Connectable Observables......Page 86
Chapter 5: Networking with RxJava and Retrofit......Page 88
Creating a Retrofit Service......Page 89
Filter Results......Page 94
Choosing the Right Scheduler......Page 96
Chaining Multiple Network Calls......Page 97
Caching Data......Page 99
RxAndroid......Page 103
RxBindings......Page 105
Activity and Fragment Life Cycle......Page 109
Index......Page 114