Hi, I've got some problem with my Event model and its evolution in time. I used this : Event 1 { RBHeader fHeader ; Int_t fNparticleEM ; Int_t fNparticleHADR ; TOrdCollection* fParticleEM ; TOrdCollection* fParticleHADR ; ... } and produced some trees in split mode with this. Now, I would like to use : Event 2 { RBHeader fHeader ; Int_t fNparticleEM ; Int_t fNparticleHADR ; Int_t fNparticleGEANT ; TOrdCollection* fParticleEM ; TOrdCollection* fParticleHADR ; TOrdCollection* fParticleGEANT ; ... } I used to think (naively, obviously) that reading back the type 1 trees would be a matter of dealing with the class version number in Event::Streamer. But it seems that this routine is not called at all when reading back the tree (written in split mode). So how can I deal with this evolving event class ? Am I lost or is there a solution ? Thanks a lot for your help. -- APHECETCHE Laurent (mailto:aphecetche@ganil.fr) GANIL, B.P. 5027, 14076, Caen Cedex 5, France Vox: +33 (0)2 31 45 45 85 - Fax: +33 (0)2 31 45 46 65 WWW: http://ganp03.in2p3.fr/nof/ & (perso.) http://www.mygale.org/~p0mp0n
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