BundlePointer.h

// Copyright 2008 Michael Marsh, University of Maryland.
//
// This file is part of pydtn.
//
// pydtn is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// pydtn is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with pydtn.  If not, see <http://www.gnu.org/licenses/>.
//
// The views and conclusions contained in the software and documentation
// are those of the authors and should not be interpreted as representing
// official policies, either expressed or implied, of the University
// of Maryland.
//
// pydtn extends and embeds the Python interpreter, which is
// Copyright 2001-2006 Python Software Foundation, All Rights Reserved,
// and is released under the PSF License Agreement.
//
// RANLUX random number generation uses the Boost library,
// Copyright 1994-2006 by various authors (details in individual files),
// which is released under the Boost Software License, Version 1.0.

#ifndef __DTN_BUNDLE_POINTER_H__
#define __DTN_BUNDLE_POINTER_H__

#include "config.h"

namespace DTN
{
   class Bundle;

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

         virtual bool operator==( const BundlePointerRepr& b ) = 0;

         virtual BundlePointerRepr* next() = 0;

         virtual BundlePointerRepr* clone() = 0;

         virtual Bundle* bundle() const = 0;
   };

   class BundlePointer
   {
      public :
         BundlePointer( BundlePointerRepr* repr = 0 );
         BundlePointer( const BundlePointer& aOther );
         virtual ~BundlePointer();

         void operator=( const BundlePointer& aOther );

         bool operator==( const BundlePointer& bp );

         bool isNull() const;

         const BundlePointerRepr* repr() const;

         BundlePointer next();

         const BundlePointer next() const;

      private :
         BundlePointerRepr*  m_repr;
   };
};

#endif /* __DTN_BUNDLE_POINTER_H__ */

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