From ab05d7176e80349f52252ca271ef7a9bd1bc401d Mon Sep 17 00:00:00 2001
From: wmtan <wmtan@fnal.gov>
Date: Tue, 15 Mar 2016 17:46:41 +0100
Subject: [PATCH] Add comment

---
 FWCore/Framework/interface/Event.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/FWCore/Framework/interface/Event.h b/FWCore/Framework/interface/Event.h
index 61d485d06d7a0..985b80201a1cb 100644
--- a/FWCore/Framework/interface/Event.h
+++ b/FWCore/Framework/interface/Event.h
@@ -204,9 +204,13 @@ namespace edm {
     Provenance
     getProvenance(ProductID const& theID) const;
 
+    // Get the provenance for all products that may be in the event
     void
     getAllProvenance(std::vector<Provenance const*>& provenances) const;
 
+    // Get the provenance for all products that may be in the event,
+    // excluding the per-event provenance (the parentage information).
+    // The excluded information may change from event to event.
     void
     getAllStableProvenance(std::vector<StableProvenance const*>& provenances) const;