team.unnamed.inject.assisted

Annotation Type Assist

@Target(value=PARAMETER)
 @Retention(value=RUNTIME)
 @Documented
public @interface Assist

Declares that the annotated parameter isn't provided by the injector, it's provided by the class creator. Without assisted inject, we use things like

   public class PartyCreator {
     @Inject private SomeDependency dependency;

     public Party createParty(Member[] members) {
       return new Party(dependency, members);
     }
   }
 

because we can't inject members here.

So we can use Assisted Inject!

   public class Party {
     private Member[] members;

     @Assisted
     public Party(
       @Assist Member[] members,
       SomeDependency dependency
     ) {
       // your code...
     }

     // your code...
   }
 

And its factory (it must be an interface, you don't need to create the implementation, it's actually created using proxies)

   public interface PartyFactory {
     Party create(Member[] members);
   }
 

The we bind it

   bind(Party.class).toFactory(PartyFactory.class);
 

And then we use it

   PartyFactory factory = injector.getInstance(PartyFactory.class);
   Party party = factory.create(members);