Book Image

Mastering Concurrency Programming with Java 9 - Second Edition

By : Javier Fernández González
Book Image

Mastering Concurrency Programming with Java 9 - Second Edition

By: Javier Fernández González

Overview of this book

Concurrency programming allows several large tasks to be divided into smaller sub-tasks, which are further processed as individual tasks that run in parallel. Java 9 includes a comprehensive API with lots of ready-to-use components for easily implementing powerful concurrency applications, but with high flexibility so you can adapt these components to your needs. The book starts with a full description of the design principles of concurrent applications and explains how to parallelize a sequential algorithm. You will then be introduced to Threads and Runnables, which are an integral part of Java 9's concurrency API. You will see how to use all the components of the Java concurrency API, from the basics to the most advanced techniques, and will implement them in powerful real-world concurrency applications. The book ends with a detailed description of the tools and techniques you can use to test a concurrent Java application, along with a brief insight into other concurrency mechanisms in JVM.
Table of Contents (21 chapters)
Title Page
About the Author
About the Reviewer
Customer Feedback

Chapter 11. Diving into Concurrent Data Structures and Synchronization Utilities

One of the most important elements in every computer program is the data structures. Data structures allow us to store the data that our applications read, transform, and write in different ways according to our needs. The selection of an adequate data structure is a critical point to achieve good performance. A bad choice can degrade the performance of an algorithm considerably. Java Concurrency API includes some data structures designed to be used in concurrent applications without provoking data inconsistencies or loss of information.

Another critical point in concurrent applications are synchronization mechanisms. You use them to implement mutual exclusion by creating a critical section, that is to say, a piece of code that can only be executed by one thread at a time. But you can also use synchronization mechanisms to implement dependencies between threads when, for example, a concurrent task must wait for...