Customizable scanning of bean implementations.
 The SpaceModule should be given a ClassSpace representing the classes and resources to scan:
 
 
Guice.createInjector( new SpaceModule( new URLClassSpace( classloader ) ) );Reduce scanning time by using an
index or provide your own ClassFinder approach:
 
Guice.createInjector( new SpaceModule( new URLClassSpace( classloader ), BeanScanning.INDEX ) );
QualifiedTypeVisitor with QualifiedTypeBinder to find types annotated with @Named or other @Qualifiers and bind them as follows:
 
 BeanLocator uses to check type compatibility at lookup time:
 (This avoids the need to walk the type hierarchy and register bindings for each and every super-type, turning the injector graph to spaghetti.)
 @Named("example") public class MyTypeImpl implements MyType {
   // ...
 }
 If you use an empty @Named or a different @Qualifier annotation then Sisu will pick a canonical name based on the implementation type.
 
 
 Sometimes you need explicit typed bindings for external integration; you can list the types in a @Typed annotation or leave it empty to use the declared interfaces:
 
 @Named @Typed public class MyTypeImpl implements MyType {
   // ...
 }
 
 Default implementations can be indicated by using "default" as a binding name:
 
 @Named("default") public class MyTypeImpl implements MyType {
   // ...
 }
 
 or by starting the implementation name with "Default":
 
 @Named public class DefaultMyType implements MyType {
   // ...
 }
 
 Default components are bound without a qualifier and have a higher ranking than non-default components.
 
 
 @Named public class MyProvider implements Provider<MyType> {
   public MyType get() {
     // ...
   }
 }
 Use @Singleton to scope the provided binding(s) as a singleton:
 
 @Named @Singleton public class MyProvider implements Provider<MyType> {
   public MyType get() {
     // ...
   }
 }
 Note: this is different to the normal Guice behaviour where singleton only applies to the provider itself.
 
 
 @Named public class MyModule extends AbstractModule {
   @Override protected void configure() {
     // ...
   }
 }
 
 Mediators are registered with the BeanLocator:
 
 @Named public class MyMediator implements Mediator<Named, MyType, MyWatcher> {
   public void add( BeanEntry<Named, MyType> entry, MyWatcher watcher ) throws Exception {
     // ...
   }
 
   public void remove( BeanEntry<Named, MyType> entry, MyWatcher watcher ) throws Exception {
     // ...
   }
 }