JSR330

JSR-330 Integration

New in Guice 3.0

JSR-330 standardizes annotations like @Inject and the Provider interfaces for Java platforms. It doesn't currently specify how applications are configured, so it has no analog to Guice's modules.

Guice implements a complete JSR-330 injector. This table summarizes the JSR-330 types and their Guice equivalents.

JSR-330 javax.inject	Guice com.google.inject
@Inject	@Inject	Interchangeable, but JSR-330 places additional constraints on injection points. Fields must be non-final. Optional injection is not supported. Methods must be non-abstract and not have type parameters of their own. Additionally, method overriding differs in a key way: If a class being injected overrides a method where the superclass' method was annotated with javax.inject.Inject, but the subclass method is not annotated, then the method will not be injected.
@Named	@Named	Interchangeable.
@Qualifier	@BindingAnnotation	Interchangeable.
@Scope	@ScopeAnnotation	Interchangeable.
@Singleton	@Singleton	Interchangeable.
Provider	Provider	Guice's Provider extends JSR-330's Provider. Use Providers.guicify() to convert a JSR-330 provider into a Guice provider.

Best Practices

Prefer JSR-330's annotations and Provider interface.