event filtering beyond Java Type based filter

Hi, all, Can event bus dispatch events beyond Java Type based filter? For example, I have the following scenario. QuoteEventListener only want to listen events filtering by ticker instead of just java type QuoteEvent.class.

// stock quote event
public class QuoteEvent {
    private final String ticker;
    private final double price;
    public QuoteEvent(String ticker_, double price_) {
        ticker = ticker_;
        price = price_;
    }
    public String getTicker() {
        return ticker;
    }
    public double getPrice() {
        return price;
    }
}

QuoteEventListener listener1 = new QuoteEventListener("MSFT");
QuoteEventListener listener2 = new QuoteEventListener("GOOG");


EventBus eventBus = new EventBus("feeder");
eventBus.post(new QuoteEvent("MSFT", 12.34)); // only listener1 will be notified
eventBus.post(new QuoteEvent("GOOG", 12.34)); // only listener2 will be notified

[lowasser]

Is there a reason you couldn’t do this filtering in the listener itself?

[cpovirk]

Realistically, we’re unlikely to add functionality to EventBus at this point.