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Clojure Programming Cookbook

You're reading from Clojure Programming Cookbook Handle every problem you come across in the world of Clojure programming with this expert collection of recipes

Product type Paperback

Published in Oct 2016

Last Updated in Feb 2025

Publisher Packt

ISBN-13 9781785885037

Length 618 pages

Edition 1st Edition

Languages

Clojure

Concepts

Programming Language

Authors (2):

Makoto Hashimoto

Modrzyk

View More author details

Table of Contents (11) Chapters

Preface

1. Live Programming with Clojure FREE CHAPTER

2. Interacting with Collections

3. Clojure Next

4. File Access and the Network

5. Working with Other Languages

6. Concurrency and Parallelism

7. Advanced Tips

8. Web Applications

9. Testing

10. Deployment and DevOps

Extending Java superclasses and implementing Java interfaces

Java provides a superclass and interface mechanism to provide encapsulation and extendibility. Let's have a look at how to extend existing Java superclasses and implement Java interfaces in Clojure.

Getting ready

In this chapter, we will learn how to define subclasses and how to implement superinterfaces. We will use Jackson and other libraries. So, the :dependencies section in your project.clj as follows:

:dependencies [[org.clojure/clojure "1.8.0"] 
                 [org.clojure/math.numeric-tower "0.0.4"] 
                 [com.fasterxml.jackson.core/jackson-core "2.7.0"] 
                 [com.fasterxml.jackson.core/jackson-databind "2.7.0"] 
                 [com.fasterxml.jackson.core/jackson-annotations "2.7.0"] 
                 ]

How to do it...

Let's learn how to use proxy to implement Java interfaces.

Using proxy

proxy generates an anonymous class for superclasses...

The rest of the chapter is locked

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83

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Authors (2)

Makoto Hashimoto

Makoto Hashimoto

Makoto Hashimoto is a technical enthusiast in Japan. He has been involved in a lot of projects as an IT architect and led them successfully with his technical leadership. Makoto loves programming, especially with functional programming languages. Thus, he became an enthusiast of Clojure since his first encounter with this language. Recently, he is often involved in projects of the big data domain, and he constantly thinks up new ways to use Clojure for this domain. He loves spending time with his family during weekends and apart from that he loves cooking, classical music, arts and sports. Makoto has also written two books in Japanese. You can find them at http://amzn.to/2e0jySv and http://amzn.to/2eg3gq8.

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Modrzyk

Modrzyk

Nicolas Modrzyk has many years of experience in the field of IT and has spent many years in Asia. He loves making ideas a reality and the fact that this reality brings people from all around the planet together. He's been involved in many IT projects, helping customers reach their goal and in general trying to make IT easier to reach for everyone. Nicolas fell into the Clojure soup 5 years ago; it helped him become more focused, and stop wasting time on the things that are not worth it. Clojure is more than just a fantastic programming language; it is a life full of adventure. Hopefully, this book takes you on the road to that adventure. Nicolas has also written a book, Oishii Clojure (http://gihyo.jp/book/2013/978-4-7741-5991-1), in Japanese, with plenty of short Clojure recipes to enjoy the Clojure language and to make you want to try new things.

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