README

This is a very simple dependency injection package built towards auto-instantiating classes and injecting them into other classes in a managable manner. Auto-instantiation syntax is a clone of Spring's annotation formatting, example:

	@Controller
	public class MyController implements MyControllerInterface { }

This will create an instance of MyController and use that instance whenever a value of MyController or MyControllerInterface is needed. Alternately, you can use @Repository, @Service, and @Component (as per Spring), though there's no difference between the functionality at this point.

For dependency injection, the injection acts very much like Guice minus the configuration files, example:

	@Component
	public class MyConfig implements SomeServiceConfig { }
	
	@Service
	public class MyService implements SomeService {
		private SomeServiceConfig config;
		
		@Inject
		public MyService( SomeServiceConfig config ) {
			this.config = config;
		}
	}

This allows for classes that can be injected into safely but still allows for unit-testing and auto-instantiation. Note that the ContextListener must be loaded (in the web.xml file) for any of the injection to take place:

	<web-app>
	        <listener>
	                <listener-class>com.villainsoft.core.injection.utils.ContextListener</listener-class>
	        </listener>
	
	        <!-- other webappy stuff here -->
	</web-app>