Making Java Groovy

369 Pages·2013·14.18 MB·English

by  Kenneth A. Kousen

Kenneth A. Kousen

FOREWORD BY Guillaume Laforge
M A N N I N G
Making Java Groovy

Making Java Groovy
KENNETH A. KOUSEN
MANNING
SHELTER ISLAND
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ISBN: 9781935182948
Printed in the United States of America
1 2 3 4 5 6 7 8 9 10 – MAL – 19 18 17 16 15 14 13
To my father, Morton Kousen, MD,
who taught me everything I know about dedication,
persistence, and facing the future with a positive and
upbeat attitude, despite whatever pain and difficulties lay ahead.
He will always be my best example of what a man should be.

brief contents
PART 1 UP TO SPEED WITH GROOVY. ........................................1
1 ■ Why add Groovy to Java? 3
2 ■ Groovy by example 18
3 ■ Code-level integration 46
4 ■ Using Groovy features in Java 64
PART 2 GROOVY TOOLS..........................................................91
5 ■ Build processes 93
6 ■ Testing Groovy and Java projects 126
PART 3 GROOVY IN THE REAL WORLD....................................165
7 ■ The Spring framework 167
8 ■ Database access 199
9 ■ RESTful web services 227
10 ■ Building and testing web applications 257
vii

contents
foreword xv
preface xvii
acknowledgments xix
about this book xxii
about the cover illustration xxvi
PART 1 UP TO SPEED WITH GROOVY. ............................1
1 Why add Groovy to Java? 3
1.1 Issues with Java 4
Is static typing a bug or a feature? 5 ■ Methods must be in a class,
even if you don’t need or want one 7 ■ Java is overly verbose 10
Groovy makes testing Java much easier 11 ■ Groovy tools simplify
your build 13
1.2 Groovy features that help Java 14
1.3 Java use cases and how Groovy helps 15
Spring framework support for Groovy 16 ■ Simplified database
access 16 ■ Building and accessing web services 16
Web application enhancements 17
1.4 Summary 17
ix