Register new instance with existing load balancer

[Yaron Rosenbaum]

Hi

I would like to register a newly created instance with an existing load 
balancer.
My cloud provider is AWS.

Thus far, I was able to get a context (not even sure if this is correct)
private LoadBalancerServiceContext elb = 
ContextBuilder.newBuilder(“aws-elb").credentials(awsAccessKeyId,awsSecretKey).buildView(LoadBalancerServiceContext.class);

From this, I think I can do:
elb.getLoadBalancerService().

but there’s no methods for setting nodes to an existing LB, unless I want to 
create a new LoadBalancer (which I don’t)

Thanks

(Y)