How to inject multiple items of the same type using Signals and SignalCommand

rob's Avatar


29 Jun, 2010 10:58 PM

I'm still getting used to Signals and the SignalCommand and I've run into an issue.

I have a signal which dispatches two strings:

loadUserImageSignal.dispatch('hello', 'world');

My signal class looks like this:

public function LoadUserImageSignal()
    super(String, String);

Finally in my command I have this:

public var someString :String;

public var someOtherString :String;

Unfortunately when I do this both string vars in the command end up equalling 'world'. Any idea what I'm doing wrong?

Thank you!!!

  1. 1 Posted by odoe on 30 Jun, 2010 03:17 AM

    odoe's Avatar

    I don't think the SignalCommandMap can deal with 2 objects of the same type in that manner.
    It still uses the injector.MapValue(), which I'm sure someone would correct me if i'm wrong, can't distinguish between String 1 and String 2. I think this question has come up before and the suggested way of handling it was to create a valueObject to wrap them and pass that.

  2. Support Staff 2 Posted by Joel Hooks on 30 Jun, 2010 03:20 AM

    Joel Hooks's Avatar

    Dependency Injection (when performed by helper robots) has a really tough time with ambiguous data types.

  3. 3 Posted by rob on 30 Jun, 2010 04:19 AM

    rob's Avatar

    Yep I figured using a VO would be the best way to package things up. Thank you odoe and Joel for getting back to me. The RL forum is really a great place to get feedback :D

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