/**
 * Palantir - A Lightweight, RESTful DICOM Store
 * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
 * Belgium
 *
 * This program 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.
 * 
 * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
 **/


#pragma once

#include "DicomValue.h"

namespace Palantir
{
  class DicomNullValue : public DicomValue
  {
  public:
    DicomNullValue()
    {
    }

    virtual DicomValue* Clone() const 
    {
      return new DicomNullValue();
    }

    virtual std::string AsString() const
    {
      return "(null)";
    }

    virtual bool IsNull() const
    {
      return true;
    }
  };
}