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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkInformationObjectBaseKey.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkInformationObjectBaseKey_h
#define vtkInformationObjectBaseKey_h

#include "vtkCommonCoreModule.h" // For export macro
#include "vtkInformationKey.h"

#include "vtkCommonInformationKeyManager.h" // Manage instances of this type.

class vtkObjectBase;

class VTKCOMMONCORE_EXPORT vtkInformationObjectBaseKey : public vtkInformationKey
{
public:
  vtkTypeMacro(vtkInformationObjectBaseKey,vtkInformationKey);
  void PrintSelf(ostream& os, vtkIndent indent);

  vtkInformationObjectBaseKey(const char* name, const char* location,
                              const char* requiredClass=0);
  ~vtkInformationObjectBaseKey();


  static vtkInformationObjectBaseKey* MakeKey(const char* name, const char* location,
                                             const char* requiredClass=0)
    {
    return new vtkInformationObjectBaseKey(name, location, requiredClass);
    }


  void Set(vtkInformation* info, vtkObjectBase*);
  vtkObjectBase* Get(vtkInformation* info);

  virtual void ShallowCopy(vtkInformation* from, vtkInformation* to);

  virtual void Report(vtkInformation* info, vtkGarbageCollector* collector);

protected:
  // The type required of all objects stored with this key.
  const char* RequiredClass;

  vtkInformationKeySetStringMacro(RequiredClass);

private:
  vtkInformationObjectBaseKey(const vtkInformationObjectBaseKey&);  // Not implemented.
  void operator=(const vtkInformationObjectBaseKey&);  // Not implemented.
};

#endif