ObjectContainerBase.h

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/***********************************************************************************\
* (c) Copyright 1998-2019 CERN for the benefit of the LHCb and ATLAS collaborations *
*                                                                                   *
* This software is distributed under the terms of the Apache version 2 licence,     *
* copied verbatim in the file "LICENSE".                                            *
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* In applying this licence, CERN does not waive the privileges and immunities       *
* granted to it by virtue of its status as an Intergovernmental Organization        *
* or submit itself to any jurisdiction.                                             *
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#ifndef GAUDI_OBJECTCONTAINERBASE_H
#define GAUDI_OBJECTCONTAINERBASE_H 1

// Include files
#include "GaudiKernel/DataObject.h"
#include "GaudiKernel/Kernel.h"

// Forward declarations
class ContainedObject;

class GAUDI_API ObjectContainerBase : public DataObject {

protected:
  ObjectContainerBase()                        = default;
  ObjectContainerBase( ObjectContainerBase&& ) = default;
  ObjectContainerBase& operator=( ObjectContainerBase&& ) = default;
  ~ObjectContainerBase() override                         = default;

public:
  typedef size_t size_type;

  virtual long index( const ContainedObject* obj ) const = 0;

  virtual const ContainedObject* containedObject( long dist ) const = 0;
  virtual ContainedObject*       containedObject( long dist )       = 0;

  virtual size_type numberOfObjects() const = 0;

  virtual long add( ContainedObject* pObject ) = 0;

  virtual long remove( ContainedObject* value ) = 0;
};

#endif // GAUDI_OBJECTCONTAINERBASE_H