HK2相当于Guice的静态注入绑定和ProviderBinding

Question

I have code like the following

public class ProcessorFactory {
  @Inject static Provider<Processor> processorProvider;
  ...
}

public class ProcessorProvider implements Provider<Processor> {
  ...
  @Override
  public Processor get() {
    ...
  }
}

and in Guice the binding is done as follows

bind(Processor.class).toProvider(ProcessorProvider.class).in(ServletScopes.REQUEST);

requestStaticInjection(ProcessorFactory.class);

However my project was set up by someone else using HK2. Can somebody help me with the equivalent binding in HK2? It seems there is only bind, bindAsContract, and bindFactory options...

Answer 1

HK2 uses Factories where Guice uses Providers. If it's prohibitively difficult to reimplement your providers as factories, HK2 devs recommend creating a class that implements Factory<T> and accepts a Provider as a constructor arg.