/////////////////////////////////////////////////////////////////////////////// 
// Copyright (C) 2002-2025, Open Design Alliance (the "Alliance"). 
// All rights reserved. 
// 
// This software and its documentation and related materials are owned by 
// the Alliance. The software may only be incorporated into application 
// programs owned by members of the Alliance, subject to a signed 
// Membership Agreement and Supplemental Software License Agreement with the
// Alliance. The structure and organization of this software are the valuable  
// trade secrets of the Alliance and its suppliers. The software is also 
// protected by copyright law and international treaty provisions. Application  
// programs incorporating this software must include the following statement 
// with their copyright notices:
//   
//   This application incorporates Open Design Alliance software pursuant to a license 
//   agreement with Open Design Alliance.
//   Open Design Alliance Copyright (C) 2002-2025 by Open Design Alliance. 
//   All rights reserved.
//
// By use of this software, its documentation or related materials, you 
// acknowledge and accept the above terms.
///////////////////////////////////////////////////////////////////////////////

// IfcObjectDefinition.h: interface for the OdIfcObjectDefinition class.
//
///////////////////////////////////////////////////////////////////////////////

#ifndef _IFC_OBJECTDEFINITION_H_
#define _IFC_OBJECTDEFINITION_H_

#include "IfcRoot.h"

#include "TD_PackPush.h"

/** \details 
Contains declarations related to working with IFC file content.
*/
namespace OdIfc {

/** \details 
A base class that implements an IFC object definition.
The object definition determines an entity, process, type, or occurrence. 
*/
class IFCGEOM_EXPORT OdIfcObjectDefinition : public OdIfcRoot
{
  ODRX_DECLARE_MEMBERS(OdIfcObjectDefinition);

public:

  /** \details 
  Composes the object definition.
  */
  void compose() override;


  /** \details
  Retrieves an ordered sequence of IfcRelNests instances of the IfcProduct.
  \returns An array of DAI identifiers, which represents IfcRelNests instances sequence.
  */
  const OdDAIObjectIds& getIsNestedBy() const;

  /** \details
  Retrieves an ordered sequence of instances that are nesting this IfcProduct.
  \returns An array of DAI identifiers, which represents the sequence of instances.
  */
  OdDAIObjectIds extractIsNestedBy() const;

};
SMARTPTR(OdIfcObjectDefinition)

}

#include "TD_PackPop.h"

#endif // _IFC_OBJECTDEFINITION_H_