Clojurians Log v2

I'm trying to "convert" the following java code to clojure:

public interface ITimeHandler {
		void currentTime(long time);
	}

	public void reqCurrentTime( ITimeHandler handler) {
...
	}

...
		controller().reqCurrentTime(time -> show( "Server date/time is " + Formats.fmtDate(time * 1000) ));

(.reqCurrentTime controller
                 (reify com.ib.controller.ApiController$ITimeHandler
                   (currentTime [this arg]
                     (log/debug "the time is:" arg))))

(.reqCurrentTime controller
                 (reify java.util.function.Function
                   (apply [this arg]
                     (log/debug "the time is:" arg))))

At compile time, Java knows which types are acceptable to the reqCurrentTime() function and it knows that is a one-function interface so the lambda it generates conforms to that interface.

Basically Java doesn't just turn lambdas into Function instances -- it tailors it to suit the call site.

I suspect that if you created the lambda in a different context, you would not be able to pass it to reqCurrentTime()...

(at least, that's my understanding of how Java lambdas work @jjttjj -- hopefully someone will correct me if they have more insight into this!)

@seancorfield gotcha, thank you