source: trunk/source/processes/hadronic/cross_sections/src/G4CrossSectionDataSetRegistry.cc @ 969

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//
// $Id: G4CrossSectionDataSetRegistry.cc,v 1.3 2009/02/25 16:27:36 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-02-ref-02 $
//
// -------------------------------------------------------------------
//
// GEANT4 Class file
//
//
// File name:    G4CrossSectionDataSetRegistry
//
// Author  V.Ivanchenko  24.01.2009
//
// Modifications:
//

#include "G4CrossSectionDataSetRegistry.hh"
#include "G4VCrossSectionDataSet.hh"

G4CrossSectionDataSetRegistry* G4CrossSectionDataSetRegistry::theInstance = 0;

G4CrossSectionDataSetRegistry* G4CrossSectionDataSetRegistry::Instance()
{
  if(0 == theInstance) {
    static G4CrossSectionDataSetRegistry manager;
    theInstance = &manager;
  }
  return theInstance;
}

G4CrossSectionDataSetRegistry::G4CrossSectionDataSetRegistry()
{
  nxs = 0;
}

G4CrossSectionDataSetRegistry::~G4CrossSectionDataSetRegistry()
{
  Clean();
}

void G4CrossSectionDataSetRegistry::Clean()
{
  if(0 == nxs) return;
  for (G4int i=0; i<nxs; i++) {
    if( xSections[i] ) {
      delete xSections[i];
      xSections[i] = 0;
    }
  }
  nxs = 0;
}

void G4CrossSectionDataSetRegistry::Register(G4VCrossSectionDataSet* p)
{
  if(nxs > 0) {
    for (G4int i=0; i<nxs; i++) {
      if( p == xSections[i] ) return;
    }
  }
  xSections.push_back(p);
  nxs++;
}

void G4CrossSectionDataSetRegistry::DeRegister(G4VCrossSectionDataSet* p)
{
  if(nxs > 0) {
    for (G4int i=0; i<nxs; i++) {
      if( p == xSections[i] ) {
        xSections[i] = 0;
        return;
      }
    }
  }
}