@Override
public Set<IConnection> getAllConnection() {
Set<IConnection> conns = new HashSet<IConnection>();
conns.addAll(ch1.getAllConnection());
conns.addAll(ch2.getAllConnection());
return conns;
}
@Override
public void cancel() {
ch1.cancel();
ch2.cancel();
}
@Override
public void kill() {
ch1.kill();
ch2.kill();
}