include/root/TRefArrayProxy.h

0001 // @(#)root/treeplayer:$Id$
0002 // Author: Markus Frank 20/05/2005
0003
0004 /*************************************************************************
0005  * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers.               *
0006  * All rights reserved.                                                  *
0007  *                                                                       *
0008  * For the licensing terms see $ROOTSYS/LICENSE.                         *
0009  * For the list of contributors see $ROOTSYS/README/CREDITS.             *
0010  *************************************************************************/
0011
0012 #ifndef ROOT_TRefArrayProxy
0013 #define ROOT_TRefArrayProxy
0014 #include "TRefProxy.h"
0015
0016 //______________________________________________________________________________
0017 //
0018 // TRefArrayProxy is a container proxy, which allows to access references stored
0019 // in a TRefArray from TTree::Draw
0020 //
0021 //______________________________________________________________________________
0022 class TRefArrayProxy : public TRefProxy  {
0023 public:
0024    // The implicit's constructor and destructor have the correct implementation.
0025
0026    // TVirtualRefProxy overload: Clone the reference proxy (virtual constructor)
0027    TVirtualRefProxy* Clone() const override        { return new TRefArrayProxy(*this);}
0028    // TVirtualRefProxy overload: Flag to indicate if this is a container reference
0029    bool HasCounter()  const override             { return true;                    }
0030    // TVirtualRefProxy overload: Access referenced object(-data)
0031    void* GetObject(TFormLeafInfoReference* info, void* data, Int_t instance) override;
0032    // TVirtualRefProxy overload: Access to container size (if container reference (ie TRefArray) etc)
0033    Int_t  GetCounterValue(TFormLeafInfoReference* info, void *data) override;
0034 };
0035 #endif // ROOT_TRefArrayProxy