[ROOT] How not to load a branch a second time

From: Robert Zitoun (zitoun@fnal.gov)
Date: Fri Apr 12 2002 - 06:53:48 MEST 

  Hi Rooters

I have very big rootuples which I cannot reprocess. In order to save time
in macros, we load only specified branches whereever we need them with
"branch->GetEntry(ientry);"

Once many method have been written, we have discovered that, from time to
time, one of the variables in branch "branch" is wrong. It is easy to
write a new method which modifies it. However, some already written
methods reopen "branch" with a new "branch->GetEntry(ientry);" so that the
modified variable is replaced by the wrong one.

Is there a way after the correction has been made to prevent reloading the
branch later on?

Or, is there a more clever way to avoid the problem without changing the
already written methods?

          Robert.

This archive was generated by hypermail 2b29 : Sat Jan 04 2003 - 23:50:49 MET