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//
// $Id$
//
// 20100514  M. Kelsey -- All functionality removed except quantum-number
//		validation functions.
// 20110719  M. Kelsey -- Repurpose as abstract base class for all channels.
// 20110802  M. Kelsey -- Fix Coverity #29838: Virtual dtor required for base.
// 20110923  M. Kelsey -- Add optional ostream& argument to printTable(), add
//		stream operator<<, implemented in new .cc file.

#ifndef G4_CASCADE_CHANNEL_HH
#define G4_CASCADE_CHANNEL_HH

#include "globals.hh"
#include <iosfwd>
#include <vector>


class G4CascadeChannel {
public:
  G4CascadeChannel() {}
  virtual ~G4CascadeChannel() {}

  virtual G4double getCrossSection(double ke) const = 0;
  virtual G4double getCrossSectionSum(double ke) const = 0;
  virtual G4int getMultiplicity(G4double ke) const = 0;

  virtual void getOutgoingParticleTypes(std::vector<G4int>& kinds,
					G4int mult, G4double ke) const = 0;

  virtual void printTable(std::ostream& os=G4cout) const = 0;
};

std::ostream& operator<<(std::ostream& os, const G4CascadeChannel& chan);

#endif	/* G4_CASCADE_CHANNEL_HH */