Refresh Map

[d.healey]

Does sampler.refreshRRMap(); have to be called before every call to getRRGroupsForMessage() or is it okay to just call it once in the init callback? If it must be called every time would it not be better to have it called automatically behind the scenes whenever getRRGroupsForMessage() is called?

[Christoph Hart]

onInit is enough (actually you only need to call it when the mapping changes)...