Name resolution questions

[matteo-gsr]

Couldn't find my answer in the official wiki docs - https://github.com/real-logic/aeron/wiki/Name-Resolution.

I understand the default name resolver can be taken out and replaced with a custom implementation based on the NameResolver interface https://github.com/real-logic/aeron/blob/master/aeron-driver/src/main/java/io/aeron/driver/NameResolver.java.

Looking at the interface

/**
     * Lookup the name and return a string of the form name:port that represents the endpoint or control param
     * of the URI.
     *
     * @param name         to lookup
     * @param uriParamName that the lookup is for.
     * @param isReLookup   {@code true} if this is a re-lookup or {@code true} if initial lookup.
     * @return string in name:port form.
     */
    default String lookup(String name, String uriParamName, boolean isReLookup)
    {
        return name;
    }

it's not really clear from the java docs what this method really does. It returns the given name by default. In which cases would you return something different? Am I able through this to override the given control host/port for instance?

Thank you.