Package org.wamblee.inject

This package provides a mini-framework for interfacing to existing dependency injection mechanisms.

See: Description

Interface Summary

Interface	Description
Injector	Interface used to perform injection with.
InjectorFactory	The injector factory is responsible for creating injectors for a given class.

Class Summary

Class	Description
Injectable	This abstract base class performs injection at construction.
InjectorBuilder	Utility for obtaining an implementation of the InjectorFactory using ServiceLoader and for obtaining a SimpleInjector.
InjectorCache	Cache of CdiInjectors for efficiency to avoid duplicate analysis of a given class.
SimpleInjector	The main entry point for programmatic dependency injection.

Package org.wamblee.inject Description

This package provides a mini-framework for interfacing to existing dependency injection mechanisms. This package does not provide dependency injection, but implementations are expected to implement it, usually by delegating to an existing dependency injection framework. The interfaces in this package provide independence on the actual framework chosen and also allow for better testability.

Users of the package

Users of this package will typically use:

• Injector: This is the interface used to perform injection of dependencies into a given object.
• Injectable: By subclassing this class, the classes automatically get their dependencies injected at construction.
• InjectorBuilder: To get an instance of the Injector.

For example, to inject into a given object, use:

   Injector injector = InjectorBuilder.getInjector();
   MyPojo pojo = new MyPojo();
   injector.inject(pojo);
 

Implementors of the package

Of interest to implementations of this package integrating with dependency injection frameworks are:

• Injector: The main interface to be implemented is the Injector, by which injection is done.
• InjectorFactory: Injectors are created by an implementation of the InjectorFactory which creates injectors based on the class.
• InjectorBuilder: Implementations must make their InjectorFactory available through the ServiceLoader mechanism.

Class overview