#include "FWCore/Framework/interface/ESSourceProductResolverBase.h"
Description: Base class for DataProxies for ESSources that can be specialized based on concurrency needs
Usage: The ESSourceProductResolverBase provides the bases for DataProxies needed for ESSources. It allows customization of synchronization needs via the use of template parameters.
NOTE: if inheriting classes override void invalidateCache()
they must be sure to call this classes implementation as part of the call.