Package org.eclipse.sisu.inject
Dynamic bean lookup across multiple injectors.
The BeanLocator
lets you lookup and keep watch for bean implementations;
it does this by processing binding information from one or more BindingPublisher
s, such as injectors.
You can add or remove BindingPublisher
s using the MutableBeanLocator
view; any existing watchers or returned collections are updated to reflect the latest binding information.
DefaultBeanLocator
will automatically add any injectors it's bound in by virtue
of an injected setter. This makes it easy to share across multiple injectors with a simple instance binding:
Module locatorModule = new AbstractModule() { private final DefaultBeanLocator locator = new DefaultBeanLocator(); @Override protected void configure() { bind( DefaultBeanLocator.class ).toInstance( locator ); } }; Injector injectorA = Guice.createInjector( new WireModule( locatorModule, spaceModuleA ) ); // adds injectorA to locator Injector injectorB = Guice.createInjector( new WireModule( locatorModule, spaceModuleB ) ); // adds injectorB to locatorIf you want to use a
DefaultBeanLocator
in a given injector, but don't want that injector
added automatically, wrap the locator inside a provider to hide the injected setter from Guice:
bind( DefaultBeanLocator.class ).toProvider( Providers.of( locator ) );By default all bindings in an injector are separated into two partitions (default vs non-default) and ranked according to their sequence number. This is so bindings from multiple injectors can be interleaved to keep default components prioritized before non-default, while still maintaining an overall ordering between injectors. To override the default bind your own
RankingFunction
:
bind( RankingFunction.class ).to( MyRankingFunction.class );
-
Interface Summary Interface Description AnnotatedSource Binding source locations can implement this interface to supply annotations to theBeanLocator
.BeanLocator Finds and tracks bean implementations annotated withQualifier
annotations.BindingPublisher Publisher ofBinding
s to interestedBindingSubscriber
s.BindingSubscriber<T> Subscriber ofBinding
s from one or moreBindingPublisher
s.DeferredClass<T> PlaceholderClass
; postpones classloading until absolutely necessary.DeferredProvider<T> Provider
backed by aDeferredClass
.MutableBeanLocator MutableBeanLocator
that finds and tracks bindings across zero or moreBindingPublisher
s.RankingFunction Assigns eachBinding
a rank according to some function; higher ranks take precedence over lower ranks. -
Class Summary Class Description DefaultBeanLocator DefaultMutableBeanLocator
that locates qualified beans across a dynamic group ofBindingPublisher
s.DefaultRankingFunction SimpleRankingFunction
that partitions qualified bindings into two main groups.Guice4 Utility methods for dealing with changes in the Guice 4.0 SPI.InjectorBindings Legacy<S> Deprecated. Limited support for migrating legacy types.Logs Utility methods for dealing with container logging and recovery.Soft Utility methods for dealing withSoftReference
collections.Sources Utility methods for dealing with annotated sources.TypeArguments Utility methods for dealing with generic type arguments.Weak Utility methods for dealing withWeakReference
collections.