00001 /***************************************************************************** 00002 * Project: RooFit * 00003 * Package: RooFitCore * 00004 * File: $Id: RooChangeTracker.h 25184 2008-08-20 13:59:55Z wouter $ 00005 * Authors: * 00006 * WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu * 00007 * DK, David Kirkby, UC Irvine, dkirkby@uci.edu * 00008 * * 00009 * Copyright (c) 2000-2005, Regents of the University of California * 00010 * and Stanford University. All rights reserved. * 00011 * * 00012 * Redistribution and use in source and binary forms, * 00013 * with or without modification, are permitted according to the terms * 00014 * listed in LICENSE (http://roofit.sourceforge.net/license.txt) * 00015 *****************************************************************************/ 00016 #ifndef ROO_CHANGE_TRACKER 00017 #define ROO_CHANGE_TRACKER 00018 00019 #include "RooAbsReal.h" 00020 #include "RooListProxy.h" 00021 #include <vector> 00022 00023 class RooRealVar; 00024 class RooArgList ; 00025 00026 class RooChangeTracker : public RooAbsReal { 00027 public: 00028 00029 RooChangeTracker() ; 00030 RooChangeTracker(const char *name, const char *title, const RooArgSet& trackSet, Bool_t checkValues=kFALSE) ; 00031 virtual ~RooChangeTracker() ; 00032 00033 RooChangeTracker(const RooChangeTracker& other, const char* name = 0); 00034 virtual TObject* clone(const char* newname) const { return new RooChangeTracker(*this, newname); } 00035 00036 Bool_t hasChanged(Bool_t clearState) ; 00037 00038 RooArgSet parameters() const ; 00039 00040 00041 protected: 00042 00043 RooListProxy _realSet ; // List of reals to track 00044 RooListProxy _catSet ; // List of categories to check 00045 std::vector<Double_t> _realRef ; // Reference values for reals 00046 std::vector<Int_t> _catRef ; // Reference valyes for categories 00047 Bool_t _checkVal ; // Check contents as well if true 00048 00049 mutable TIterator* _realSetIter ; //! do not persist 00050 mutable TIterator* _catSetIter ; //! do not persist 00051 00052 Double_t evaluate() const { return 1 ; } 00053 00054 ClassDef(RooChangeTracker,1) // Meta object that tracks changes in set of other arguments 00055 }; 00056 00057 #endif
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