Gabriele Cosmo
82 lines
3.0 KiB
C++
82 lines
3.0 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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// -*- C++ -*-
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// AID-GENERATED
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// =========================================================================
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// This class was generated by AID - Abstract Interface Definition
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// DO NOT MODIFY, but use the org.freehep.aid.Aid utility to regenerate it.
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// =========================================================================
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#ifndef AIDA_IEVALUATOR_H
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#define AIDA_IEVALUATOR_H 1
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// This file is part of the AIDA library
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// Copyright (C) 2002 by the AIDA team. All rights reserved.
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// This library is free software and under the terms of the
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// GNU Library General Public License described in the LGPL.txt
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#include <string>
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namespace AIDA {
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class ITuple;
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/**
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* User's level interface of an IEvaluator.
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*
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* @author The AIDA team (http://aida.freehep.org/)
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*
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*/
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class IEvaluator {
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public:
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/// Destructor.
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virtual ~IEvaluator() { /* nop */; }
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/**
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* Initialize the IEvaluator and associate it to an ITuple.
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* @param tuple The ITuple to which the IEvaluator is sssociated.
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* @return false If the IEvaluator and
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* the ITuple are not compatible.
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*
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*/
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virtual bool initialize(ITuple & tuple) = 0;
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/**
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* Evaluate the IEvaluator from the data in the
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* current row of the ITuple it is associated to.
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* @return The current value of the Evaluator.
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*
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*/
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virtual double evaluateDouble() const = 0;
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/**
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* Get the expression that defined the IEvaluator.
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* @return The expression.
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*
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*/
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virtual const std::string & expression() const = 0;
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}; // class
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}; // namespace AIDA
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#endif /* ifndef AIDA_IEVALUATOR_H */
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