Book Image

Clojure for Java Developers

Book Image

Clojure for Java Developers

Overview of this book

We have reached a point where machines are not getting much faster, software projects need to be delivered quickly, and high quality in software is more demanding as ever. We need to explore new ways of writing software that helps achieve those goals. Clojure offers a new possibility of writing high quality, multi-core software faster than ever, without having to leave your current platform. Clojure for Java developers aims at unleashing the true potential of the Clojure language to use it in your projects. The book begins with the installation and setup of the Clojure environment before moving on to explore the language in-depth. Get acquainted with its various features such as functional programming, concurrency, etc. with the help of example projects. Additionally, you will also, learn how the tooling works, and how it interacts with the Java environment. By the end of this book, you will have a firm grip on Clojure and its features, and use them effectively to write more robust programs.
Table of Contents (14 chapters)
Clojure for Java Developers
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Chapter 3. Interacting with Java

We know a bit about how to organize our code and how that relates to packages in Java. Now, you surely need to use your old Java code and all the libraries you already know; Clojure encourages a new way to think about programming and it also allows you to use all the dependencies and code that you've already generated.

Clojure is a Java Virtual Machine (JVM) language and as such it is compatible with most Java dependencies and libraries out there; you should be able to use all the tools out there. You should also be able to use your Clojure programs with Java-only programs, this requires a bit of custom coding but in the end you can use Clojure in the right places of your project.

To be able to do this, we'll have to learn:

  • Using Maven dependencies

  • Using plain old Java classes from your Clojure code base

  • A bit more about the Clojure language, in particular the let statements and destructuring

  • Creating a Java interface for your Clojure code

  • Using the Java interface...