RxJava 2 | Reactive Programming in Java

Learning Objectives

Working in a hands-on learning environment, guided by our expert team, attendees will learn to:

• Understand the basics of Reactive Programming
• Discuss the advantages and limitations of RxJava Observables
• Write a client application capable of handling Reactive events
• Develop unit tests to properly test Observable implementations (Using JUnit 5)
• Apply operators to event streams to filter, modify and combine the objects emitted by event publishers
• Select the appropriate type of Event Source (Single, Maybe, Completable, Observable and Flowable)
• Implement event sources using one of the many factory methods of the RxJava 2 API
• Use Subjects, acting as both event consumers and event source
• Use both Cold and Hot Observables
• Work with RxJava Scheduler instances to defines the thread pools on which event producers and consumers operate
• Properly divide the functionality over multiple threads
• Write test classes that deal with asynchronous RxJava implementations
• Deal with backpressure problems in reactive programming
• Solve the problem of with slow event consumers
• Implement alternatives to event caching
• Deal with exceptions in Reactive streams
• Retry registration to event streams in Exceptional situations

Audience & Pre-Requisites

This in an intermediate-level development course geared for experienced Java developers who wish to explore concurrent, asynchronous and reactive programming APIs and techniques in Java.

Take Before: Students should have practical skills equivalent to or should have received training in the following topic(s) as a pre-requisite:

• TT2100-J8: Introduction to Java 8 Programming for OO Experienced Developers

Take Instead: We offer other courses that provide different levels of knowledge or focus:

• TT3423: Functional and Reactive Programming using RxJava 2 – 3 days

Take After: Our core training courses provide students with a solid foundation for continued learning based on role, goals, or their areas of specialty. Our learning paths offer a wide variety of follow-on courses such as:

• Specialized or continued Java / JEE training: Spring, Advanced Java, Design Patterns & more.
• Agile, Java TDD / Test Driven Development and JUnit training
• Java / JEE Services, Microservices, REST training
• Java or JEE Web Application Security and secure coding training