00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // $Id$ 00027 // 00028 // Base type key class 00029 // 00030 // Jane Tinslay, September 2006 00031 // 00032 #ifndef G4TYPEKEY_HH 00033 #define G4TYPEKEY_HH 00034 00035 #include "globals.hh" 00036 #include <ostream> 00037 00038 class G4TypeKey { 00039 00040 public: 00041 00042 typedef unsigned long Key; 00043 00044 // Constructor 00045 G4TypeKey():fMyKey(0) {} 00046 00047 // Destructor 00048 virtual ~G4TypeKey() {} 00049 00050 G4bool IsValid() { 00051 return (0 == fMyKey ? false : true); 00052 } 00053 00054 // Operators 00055 Key operator()() const {return fMyKey;} 00056 bool operator==(const G4TypeKey& rhs) const {return fMyKey == rhs.fMyKey;} 00057 bool operator!=(const G4TypeKey& rhs) const {return !operator==(rhs);} 00058 bool operator<(const G4TypeKey& rhs) const {return fMyKey < rhs.fMyKey;} 00059 bool operator>(const G4TypeKey& rhs) const {return fMyKey > rhs.fMyKey;} 00060 00061 friend std::ostream& operator<<(std::ostream& out, const G4TypeKey& key){ 00062 return out<< key.fMyKey; 00063 } 00064 00065 protected: 00066 00067 Key NextKey() const { 00068 static Key nKey = 0; 00069 return ++nKey; 00070 } 00071 00072 Key fMyKey; 00073 00074 }; 00075 00076 #endif