Overview
In object-oriented programming, a central program normally controls other objects in a module, library, or framework. With dependency injection, this pattern is inverted—a reference to a service is placed directly into the object which eases testing and modularity. Spring or Google Guice use dependency injection so you can focus on your core application and let the framework handle infrastructural concerns.
Dependency Injection explores the DI idiom in fine detail, with numerous practical examples that show you the payoffs. You'll apply key techniques in Spring and Guice and learn important pitfalls, corner-cases, and design patterns.
About the Technology
About the Book
What's Inside
- How to apply it (Understand it first!)
- Design patterns and nuances
- Spring, Google Guice, PicoContainer, and more
- How to integrate DI with Java frameworks
About the Reader
Readers need a working knowledge of Java but no prior experience with DI is assumed.
About the Author
Dhanji R. Prasanna is a Google software engineer who works on Google Wave and represents Google on several Java expert groups. He contributes to Guice, MVEL, and other open source projects.
Quotes
Transcends implementation details...covers customary and effective use of DI.
- Bob Lee, Software Engineer, Google Inc. and Creator of Guice
Most comprehensive coverage of DI I have seen.
- Frank Wang, DigitalVelocity LLC
A handy manual for better programs with less code.
- Jesse Wilson, Guice 2.0 Lead, Google Inc.
Dependency injection is not just for gurus - this book explains all.
- Paul King, ASERT
A fantastic book...makes writing great software much easier.
- Rick Wagner, Acxiom Data Products