How to split object to diff. files ?

Nikolay I. Root (nroot@inp.nsk.su)
Fri, 26 Jun 1998 01:56:42 +0700 (NSD)


Dear ROOT team.

First at all - thank you for help on my previous mail.

I have Q's about splitting complicated objects to different branches.
Let me consider the example :
'track is a collection of hits' ==>

class Track : public TList { /* summary info */ }

All "hits" are contained in one TClonesArray and
"list part of track" - just a pointers to individual hits.
Also 'track' has 'summary info' as data fields

Q1: how to split :
'hits' --> file1 (trivial)
'list part of track' --> file2 ????
'summary info' --> file3 ?

The second question - 'how to use tape archive ?'

We have a some simple implementation of tape archive (perl scripts +
mSQL DB) and Q. about 'interfacing' root and existing software.

How to ask 'gSystem' to notify me about 'un-existing file' exceptions ?
Are there other tips that I need to know ?
Or other simple solution (or examples !) exists ???
What is the 'best way' in that case ?

Thanks in advance!

Nikolay Root
BINP, Novosibirsk
email : nroot@inp.nsk.su