Separate methods Init(Option_t *) (called by AnalysisManager::SlaveBegin)

[u/mrichter/AliRoot.git] / STEER / AliAODInputHandler.cxx

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 * Author: The ALICE Off-line Project.                                    *
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/* $Id$ */

//-------------------------------------------------------------------------
//     Event handler for AOD input 
//     Author: Andreas Morsch, CERN
//-------------------------------------------------------------------------

#include <TTree.h>

#include "AliAODInputHandler.h"
#include "AliAODEvent.h"

ClassImp(AliAODInputHandler)

//______________________________________________________________________________
AliAODInputHandler::AliAODInputHandler() :
    AliInputEventHandler(),
    fEvent(0)
{
  // default constructor
}

//______________________________________________________________________________
AliAODInputHandler::~AliAODInputHandler() 
{
// destructor
}

//______________________________________________________________________________
AliAODInputHandler::AliAODInputHandler(const char* name, const char* title):
    AliInputEventHandler(name, title)
{
}

Bool_t AliAODInputHandler::Init(TTree* tree, Option_t* /*opt*/)
{
    // Initialisation necessary for each new tree
    fTree = tree;
    if (!fTree) return kFALSE;
    // Get pointer to AOD event
    if (fEvent) {
      delete fEvent;
      fEvent = 0;
    }
    fEvent = new AliAODEvent();

    fEvent->ReadFromTree(fTree);
    return kTRUE;
}