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Learning Reactive Programming With Java 8

You're reading from   Learning Reactive Programming With Java 8 Learn how to use RxJava and its reactive Observables to build fast, concurrent, and powerful applications through detailed examples

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Product type Paperback
Published in Jun 2015
Publisher Packt
ISBN-13 9781785288722
Length 182 pages
Edition 1st Edition
Languages
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Author (1):
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Nickolay Tzvetinov Nickolay Tzvetinov
Author Profile Icon Nickolay Tzvetinov
Nickolay Tzvetinov
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Table of Contents (10) Chapters Close

Preface 1. An Introduction to Reactive Programming 2. Using the Functional Constructions of Java 8 FREE CHAPTER 3. Creating and Connecting Observables, Observers, and Subjects 4. Transforming, Filtering, and Accumulating Your Data 5. Combinators, Conditionals, and Error Handling 6. Using Concurrency and Parallelism with Schedulers 7. Testing Your RxJava Application 8. Resource Management and Extending RxJava Index

The conditional operators

It is possible to make it so that one Observable instance won't begin its emissions until another emits, or so that it would emit only if another doesn't emit anything. These Observable instances are able to emit items under given conditions, and these conditions are applied to them using conditional operators. In this section, we'll take a look at some of the conditional operators provided by RxJava.

The amb operator

The amb() operator has overloads that take from two up to nine source Observable instances or an Iterable instance of the Observable instances. It emits the items of the source Observable instance that starts emitting first. It doesn't matter what this is, whether OnError, OnCompleted notification, or data. Its diagram looks like this:

The amb operator

This operator has an instance form too. It is called ambWith() and can be called on one Observable instance in argument with another Observable instance.

This conditional operator is good for reading...

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