Removed fAlice and changed ReadTreeK to make it look as the others. Event now require...

[u/mrichter/AliRoot.git] / EMCAL / AliEMCALGetter.cxx

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/* $Id:  */



/* $Log:

   29.05.2001 Yuri Kharlov:

              Everywhere reading the treese TTree->GetEvent(i)

              is replaced by reading the branches TBranch->GetEntry(0)

*/

/* $Log:

   08.2002 Dmitri Peressounko:



*/



//_________________________________________________________________________

//  A singleton. This class should be used in the analysis stage to get 

//  reconstructed objects: Digits, RecPoints, TrackSegments and RecParticles,

//  instead of directly reading them from galice.root file. This container 

//  ensures, that one reads Digits, made of these particular digits, RecPoints, 

//  made of these particular RecPoints, TrackSegments and RecParticles. 

//  This becomes non trivial if there are several identical branches, produced with

//  different set of parameters. 

//

//  An example of how to use (see also class AliEMCALAnalyser):

//  AliEMCALGetter * gime = AliEMCALGetter::GetInstance("galice.root","test") ;

//  for(Int_t irecp = 0; irecp < gime->NRecParticles() ; irecp++)

//     AliEMCALRecParticle * part = gime->RecParticle(1) ;

//     ................

//  please->GetEvent(event) ;    // reads new event from galice.root

//                  

//*-- Author: Yves Schutz (SUBATECH) & Dmitri Peressounko (RRC KI & SUBATECH)

//*--         Completely redesigned by Dmitri Peressounko March 2001  

//

//*-- YS June 2001 : renamed the original AliEMCALIndexToObject and make

//*--         systematic usage of TFolders without changing the interface     

//*-- YS August 2002 : clone PHOS as closely as possible and intoduction