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Guice (pronounced 'juice') is a lightweight dependency injection framework for Java 6 and above, brought to you by Google.
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sameb and ronshapiro Record static injection requests, instance injection requests, member…
…s injector lookups and all provider lookups, so we can record more dependency information after the injector is built.

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Latest commit dafa4b0 Mar 1, 2019
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bom bump snapshot version, update README & prior api xml Oct 31, 2018
examples/src/example/xml remove unnecessary explicit type parameters now that we are on java7 Mar 21, 2017
extensions bump snapshot version, update README & prior api xml Oct 31, 2018
jdk8-tests bump snapshot version, update README & prior api xml Oct 31, 2018
util Typo: "Lastest" -> "Latest" Feb 26, 2018
.gitignore ignore everything in extensions' build dir Jan 16, 2016
.travis.yml Update Guice to use cglib 3.2.9 & asm 7 in the opensource build, for … Oct 29, 2018 Fix the outdated link to google's java style guide Jan 25, 2018


Latest release: 4.2.2

Documentation: User Guide, 4.2.2 javadocs, Latest javadocs
Continuous Integration: Build Status
Mailing Lists: User Mailing List
License: Apache 2.0

Put simply, Guice alleviates the need for factories and the use of new in your Java code. Think of Guice's @Inject as the new new. You will still need to write factories in some cases, but your code will not depend directly on them. Your code will be easier to change, unit test and reuse in other contexts.

Guice embraces Java's type safe nature, especially when it comes to features introduced in Java 5 such as generics and annotations. You might think of Guice as filling in missing features for core Java. Ideally, the language itself would provide most of the same features, but until such a language comes along, we have Guice.

Guice helps you design better APIs, and the Guice API itself sets a good example. Guice is not a kitchen sink. We justify each feature with at least three use cases. When in doubt, we leave it out. We build general functionality which enables you to extend Guice rather than adding every feature to the core framework.

Guice aims to make development and debugging easier and faster, not harder and slower. In that vein, Guice steers clear of surprises and magic. You should be able to understand code with or without tools, though tools can make things even easier. When errors do occur, Guice goes the extra mile to generate helpful messages.

For an introduction to Guice and a comparison to new and the factory pattern, see Bob Lee's video presentation. After that, check out our user's guide.

We've been running Guice in mission critical applications since 2006, and now you can, too. We hope you enjoy it as much as we do.

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