var GEventHandler StockPriceUpdateEevent

type StockPricePushClient struct {
}

type StockPriceUpdateEevent interface {
PriceUpdate(foo int64)
}

func (m *StockPricePushClient) StartUpdate() {
go func() {
    for {
        time.After(time.Millisecond * 100)
        if GEventHandler != nil {
            GEventHandler.PriceUpdate(time.Now().Unix())
        }
    }
}()
}

func NewStockPricePushClient() *StockPricePushClient {
    m := StockPricePushClient{}
    return &m
}

func SetFooEvent(event StockPriceUpdateEevent) {
    GEventHandler = event
}

Client.SetFooEvent(new EventHandler());

    Client.StockPricePushClient c = Client.NewStockPricePushClient();
    c.StartUpdate();

    @Override
    public void PriceUpdate(long l) {

    }
}