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RooProduct.h
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1 /*****************************************************************************
2  * Project: RooFit *
3  * Package: RooFitCore *
4  * File: $Id: RooProduct.h,v 1.5 2007/05/11 09:11:30 verkerke Exp $
5  * Authors: *
6  * WV, Wouter Verkerke, UC Santa Barbara, verkerke@slac.stanford.edu *
7  * GR, Gerhard Raven, VU Amsterdan, graven@nikhef.nl *
8  * *
9  * Copyright (c) 2000-2007, Regents of the University of California *
10  * and Stanford University. All rights reserved. *
11  * *
12  * Redistribution and use in source and binary forms, *
13  * with or without modification, are permitted according to the terms *
14  * listed in LICENSE (http://roofit.sourceforge.net/license.txt) *
15  *****************************************************************************/
16 #ifndef ROO_PRODUCT
17 #define ROO_PRODUCT
18 
19 #include "RooAbsReal.h"
20 #include "RooListProxy.h"
21 #include "RooCacheManager.h"
22 #include "RooObjCacheManager.h"
23 
24 #include <vector>
25 #include <utility>
26 
27 
28 class RooRealVar;
29 class RooArgList ;
30 
31 
32 class RooProduct : public RooAbsReal {
33 public:
34 
35  RooProduct() ;
36  RooProduct(const char *name, const char *title, const RooArgList& _prodSet) ;
37 
38  RooProduct(const RooProduct& other, const char* name = 0);
39  virtual TObject* clone(const char* newname) const { return new RooProduct(*this, newname); }
40  virtual Bool_t forceAnalyticalInt(const RooAbsArg& dep) const ;
41  virtual Int_t getAnalyticalIntegralWN(RooArgSet& allVars, RooArgSet& analVars,
42  const RooArgSet* normSet,
43  const char* rangeName=0) const ;
44  virtual Double_t analyticalIntegral(Int_t code, const char* rangeName=0) const;
45 
46 
47  RooArgList components() { RooArgList tmp(_compRSet) ; tmp.add(_compCSet) ; return tmp ; }
48 
49  virtual ~RooProduct() ;
50 
51  class ProdMap ;
52 
53  void printMetaArgs(std::ostream& os) const ;
54 
55  virtual std::list<Double_t>* binBoundaries(RooAbsRealLValue& /*obs*/, Double_t /*xlo*/, Double_t /*xhi*/) const ;
56  virtual std::list<Double_t>* plotSamplingHint(RooAbsRealLValue& /*obs*/, Double_t /*xlo*/, Double_t /*xhi*/) const ;
57  virtual Bool_t isBinnedDistribution(const RooArgSet& obs) const ;
58 
59  virtual CacheMode canNodeBeCached() const { return RooAbsArg::NotAdvised ; } ;
60  virtual void setCacheAndTrackHints(RooArgSet&) ;
61 
62 protected:
63 
64  RooListProxy _compRSet ;
65  RooListProxy _compCSet ;
66 
67  class CacheElem : public RooAbsCacheElement {
68  public:
69  virtual ~CacheElem();
70  // Payload
71  RooArgList _prodList ;
72  RooArgList _ownedList ;
73  virtual RooArgList containedArgs(Action) ;
74  };
75  mutable RooObjCacheManager _cacheMgr ; // The cache manager
76 
77 
78  Double_t calculate(const RooArgList& partIntList) const;
79  Double_t evaluate() const;
80  const char* makeFPName(const char *pfx,const RooArgSet& terms) const ;
81  ProdMap* groupProductTerms(const RooArgSet&) const;
82  Int_t getPartIntList(const RooArgSet* iset, const char *rangeName=0) const;
83 
84 
85 
86 
87  ClassDef(RooProduct,2) // Product of RooAbsReal and/or RooAbsCategory terms
88 };
89 
90 #endif