import org.boris.expr.function.ExcelFunctionProvider;
public class ListenerEngineTest
{
public static void main(String[] args) throws Exception {
ListenerEngine le = new ListenerEngine(new ExcelFunctionProvider());
le.addListener(new DebugEngineListener());
le.set("a", "b+c");
le.set("c", "sin(123+b)");
le.set("b", "54.32");
ExecutorService es = Executors.newFixedThreadPool(5);
le.startCalculation(es, 5);
Thread.sleep(500);
le.set("d", "a*b");
le.set("b", "2.");
}