Overview of the Sisu container, which builds on Guice 3, and possible future ideas / features.

1. Sisu
https://github.com/sonatype/sisu

2. Sisu Finnish for Perseverance
JSR 330+
Plugins
Shims
Wouldn’t It Be Nice If...

3. sisu-inject-bean
<dependency>
<groupId>org.sonatype.sisu</groupId>
<artifactId>sisu-inject-bean</artifactId>
<version>2.2.0</version>
</dependency>
Guice Extension
Compatible with Guice 3
OSGi Bundle
Only 235k :)

4. JSR 330+
@Named( "hint" )
@EagerSingleton
class SomeComponent
{ @Named
} @Typed( SomeType.class )
class AnotherComponent
{
}
@Inject
List<Component> componentList;
@Inject
Map<String, Component> componentMap;
@Inject
@Named( "${dbdriver}://${dbhost}:${dbport:-5432}/${dbname}" )
URL databaseURL;

5. Plugins
Injector per-plugin
Bean Locator
Aggregates injectors
Sorts bindings by rank
Non-local dependencies bound via Locator

6. maven-core
(Plexus)
BeanLocator
maven-compiler-plugin maven-jar-plugin
maven-install-plugin

7. Wire Module
Leans heavily on Guice SPI
Finds and Binds missing dependencies
new WireModule( new SpaceModule... )
Can be re-used!
Extend + Override wiring method

8. Space Module
Based on Class Space abstraction
Scans classes for @Named components
Supports caching and indexing
Can be re-used!
Extend + Override visitor method

9. Ranked Bindings
Sorts using Rank + UID
Supports concurrent iteration+mutation
Re-positions iterator as necessary
Sources of bindings are also ranked
Lazy lookup, unrolling as necessary

10. Shims
Maven3 + Plexus
Both <XML/> and @Component
Nexus Plugins
Hudson + SezPoz
... Mix and Match!

11. Basic Shim Approach
Map bindings to canonical form (Guice)
Cache additional metadata
Use Type Listeners:
Custom injection
Custom Lifecycle (be careful of dependency cycles!)

12. Wouldn’t It Be Nice If ...
Lifecycle Support
IDE Support
Component Catalogue
...?