[timfox]

Well, routing name is not a unique id. The unique id is the unique name.

If the method on the postOffice was getBindingsByRoutingName(String routingName) then fair enough.

But the method on the postOffice is this:

public interface PostOffice extends HornetQComponent
{
   ....snip

   Binding getBinding(SimpleString uniqueName);

The idea of the method is simply to lookup a queue by it's unique id.