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//   
//   This application incorporates Open Design Alliance software pursuant to a license 
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///////////////////////////////////////////////////////////////////////////////

// This file is generated automatically.

#ifndef _IFC4X2_IFCPHYSICALSIMPLEQUANTITY_AUTO_IMPL_H
#define _IFC4X2_IFCPHYSICALSIMPLEQUANTITY_AUTO_IMPL_H

#include "IfcPhysicalQuantityAutoImpl.h"
#include "IfcNamedUnitAutoImpl.h"

#include "TD_PackPush.h"

/** \details
  The namespace contains schema-dependent classes, definitions and sub routines
  for work with IFC4X2 express schema definitions.
*/
namespace OdIfc4x2 {

/** \details
  The physical quantity, IfcPhysicalSimpleQuantity, is an entity that holds a single quantity measure value 
  (as defined at the subtypes of IfcPhysicalSimpleQuantity) together with a semantic definition of the usage for the measure value.
  
  A section "Quantity Use Definition" at individual entities as subtypes of IfcBuildingElement gives guidance to the usage 
  of the Name attribute to characterize the individual quantities. If the Unit attribute is given, 
  the value attribute (introduced at the level of subtypes of IfcPhysicalSimpleQuantity) are given as quantities of this unit, 
  otherwise the global unit definitions (given by IfcUnitAssignment) are used.
  
  - Example -
  An element, like a wall, can have several area measures, like footprint area, left wall face area, right wall face area. 
  These areas would be given by three instances of the area quantity subtype, with different Name string values.

  \remarks
  This definition may not be instantiated.
*/
class IFC4X2_EXPORT IfcPhysicalSimpleQuantity : public IfcPhysicalQuantity
{
  //DOM-IGNORE-BEGIN
  OD_EXP_NON_INSTANTIABLE_DECLARE_MEMBERS(OdIfc4x2::IfcPhysicalSimpleQuantity);
  //DOM-IGNORE-END

public:


  //
  // OdDAI early binding accessors
  //


  /** \details
  Returns the value of Unit attribute. 
  This attribute represents optional assignment of a unit. 
  If no unit is given, then the global unit assignment, as established at the IfcProject, applies to the quantity measures.
  \returns
  Returns the value of Unit attribute.
  */
  const OdDAIObjectId& getUnit() const;

  /** \details
  Sets the value of Unit attribute. 
  This attribute represents optional assignment of a unit. 
  If no unit is given, then the global unit assignment, as established at the IfcProject, applies to the quantity measures.
  \param Unit [in] Unit to set.
  */
  void setUnit(const OdDAIObjectId& Unit);


public:

  /** \details
  Reads object's data from the specified filer.
  \param rdFiler [in] Pointer to a filer from which to read the data.
  \returns
  A value of OdResult type that contains the result of the method execution.
  */
  virtual OdResult inFields(OdDAI::OdSpfFilerBase* rdFiler) override;

  /** \details
  Writes object's data the the specified filer.
  \param wrFiler [in] Pointer to a filer to which to write the data.
  \returns
  A value of OdResult type that contains the result of the method execution.
  */
  virtual OdResult outFields(OdDAI::OdSpfFilerBase* wrFiler) override;

  /** \details
  Returns a type of a class instance.
  \returns
  Pointer to the <exref target="OdDAI__Entity.html">OdDAI::Entity</exref> type that determines an entity definition within a schema.
  */
  virtual OdDAI::Entity* getInstanceType() const override;

  /** \details
  Returns an attribute value for the specified attribute name.
  \param attrName [in] Name of an attribute to query.
  \returns
  OdRxValue object that represents a generic variant type value.
  */
  virtual OdRxValue getAttr(const char * attrName) const override;

  /** \details
  Resets a value for the specified attribute.
  \param explicitAttrName [in] Explicit name of the attribute to reset.
  */
  virtual void unsetAttr(const char * explicitAttrName) override;

  /** \details
  Checks whether the specified attribute is set.
  \param explicitAttrName [in] Explicit name of the attribute to test.
  \returns
  true if the specified attribute is set, false otherwise.
  */
  virtual bool testAttr(const char * explicitAttrName) const override;

  /** \details
  Sets the specified attribute with a given value.
  \param explicitAttrName [in] Explicit name of the attribute to set.
  \param val [in] Value to set.
  \returns
  true if the value is successfully set for the specified attribute, false otherwise.
  */
  virtual bool putAttr(const char * explicitAttrName, const OdRxValue &val) override;

  /** \details
  Checks whether the specified instance is the object derived from or belongs to this class.
  \param entityType [in] Entity to check.
  \returns
  true if the specified instance is the object derived from or belongs to this class, false otherwise.
  */
  virtual bool isKindOf(OdIfc::OdIfcEntityType entityType) const override;

  /** \details
  Returns the type of this entity.
  \returns
  A value of the <exref target="OdIfc__OdIfcEntityType.html">OdIfc::OdIfcEntityType</exref> type that represents type of this entity.
  */
  virtual OdIfc::OdIfcEntityType type() const override;

  /** \details
  Returns an attribute value for the specified attribute definition.
  \param attrDef [in] Attribute definition to query.
  \returns
  OdRxValue object that represents a generic variant type value.
  */
  virtual OdRxValue getAttr(const OdIfc::OdIfcAttribute attrDef) const override;

  /** \details
  Resets a value for the specified attribute.
  \param explicitAttrDef [in] Explicit definition that represents an attribute to reset.
  */
  virtual void unsetAttr(const OdIfc::OdIfcAttribute explicitAttrDef) override;

  /** \details
  Checks whether the specified attribute is set.
  \param explicitAttrDef [in] Attribute definition to test.
  \returns
  true if the specified attribute is set, false otherwise.
  */
  virtual bool testAttr(const OdIfc::OdIfcAttribute explicitAttrDef) const override;

  /** \details
  Sets the specified attribute with a given value.
  \param explicitAttrDef [in] Explicit attribute definition to set.
  \param val [in] Value to set.
  \returns
  true if the value is successfully set for the specified attribute, false otherwise.
  */
  virtual bool putAttr(const OdIfc::OdIfcAttribute explicitAttrDef, const OdRxValue &val) override;

protected:
  // Fields declaration: 
  OdDAIObjectId m_Unit;   // IfcNamedUnit  [optional]
};

/** \details
  A data type that represents a smart pointer to a <exref target="OdIfc4x2__IfcPhysicalSimpleQuantity.html">IfcPhysicalSimpleQuantity</exref> object.
*/
typedef OdSmartPtr<IfcPhysicalSimpleQuantity> IfcPhysicalSimpleQuantityPtr;

} // namespace

#include "TD_PackPop.h"

#endif // _IFC4X2_IFCPHYSICALSIMPLEQUANTITY_AUTO_IMPL_H