Hi,
I have a class Command that I want to leverage Guice's injector as follows.
Class Backend is a singleton and should be injected by Guice. But I'd like
to be able to pass in argument entity at runtime.
public class Command {
private final Backend backend;
@Inject
public Command(Backend backend, @Assisted Entity entity) {
this.backend = backend.
}
}
I wonder if I can do the following. I looks with injector.getInstance does
not let me specify an argument, i.e. entity, to pass in.
@Singleton
public class CommandFactory {
private Injector injector;
public StepCommandFactory() {
injector = Guice.createInjector(new ApiFeModule()); // ApiFeModule is a
module to be used
}
public Command createCommand(Entity entity) {
switch (entity.getOperation()) {
Command cmd;
case CREATE_VM:
cmd = injector.getInstance(VMCreateStepCmd.class);
break;
case CREATE_DISK:
cmd = injector.getInstance(DiskCreateStepCmd.class);
break;
case ATTACH_DISK:
cmd = injector.getInstance(DiskAttachStepCmd.class);
break;
default:
throw new InternalException(String.format("Invalid Operation %s to
create command",
entity.getOperation()));
}
return cmd;
}
}
--
You received this message because you are subscribed to the Google Groups
"google-guice" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/google-guice.
To view this discussion on the web visit
https://groups.google.com/d/msgid/google-guice/4fd8090c-a0fd-4546-aa05-bbfe164c4d57%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
