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 BindingPublishers, such as injectors.
You can add or remove BindingPublishers 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 locator
If 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 );
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Interface Summary Interface Description AnnotatedSource Binding source locations can implement this interface to supply annotations to theBeanLocator.BeanLocator Finds and tracks bean implementations annotated withQualifierannotations.BindingPublisher Publisher ofBindings to interestedBindingSubscribers.BindingSubscriber<T> Subscriber ofBindings from one or moreBindingPublishers.DeferredClass<T> PlaceholderClass; postpones classloading until absolutely necessary.DeferredProvider<T> Providerbacked by aDeferredClass.MutableBeanLocator MutableBeanLocatorthat finds and tracks bindings across zero or moreBindingPublishers.RankingFunction Assigns eachBindinga rank according to some function; higher ranks take precedence over lower ranks. -
Class Summary Class Description DefaultBeanLocator DefaultMutableBeanLocatorthat locates qualified beans across a dynamic group ofBindingPublishers.DefaultRankingFunction SimpleRankingFunctionthat 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 withSoftReferencecollections.Sources Utility methods for dealing with annotated sources.TypeArguments Utility methods for dealing with generic type arguments.Weak Utility methods for dealing withWeakReferencecollections.