public <TI extends IDataArrayTarget, U> boolean connectWidgetDual(TI widget, IKey xKey, IKey yKey) {
return connectWidget(widget, createDualKey(xKey, yKey));
}
public static IKey createDualKey(IKey xKey, IKey yKey) {
CompositeKey compKey = new CompositeKey();
compKey.addKey(CompositeKey.X_INDEX, xKey);
compKey.addKey(CompositeKey.Y_INDEX, yKey);
return compKey;
}