#include "FWCore/Framework/interface/ESSourceProductResolverConcurrentBase.h"
Description: Base class for DataProxies for ESSources that require no synchronization
Usage: The ESSourceProductResolverConcurrentBase allows DataProxies from the same ESSource to be called concurrently.
NOTE: if inheriting classes override void invalidateCache()
they must be sure to call this classes implementation as part of the call.