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// This file is generated by WOK (CPPExt).
// Please do not edit this file; modify original file instead.
// The copyright and license terms as defined for the original file apply to 
// this header file considered to be the "object code" form of the original source.

#ifndef _TDF_AttributeDelta_HeaderFile
#define _TDF_AttributeDelta_HeaderFile

#ifndef _Standard_HeaderFile
#include <Standard.hxx>
#endif
#ifndef _Standard_DefineHandle_HeaderFile
#include <Standard_DefineHandle.hxx>
#endif
#ifndef _Handle_TDF_AttributeDelta_HeaderFile
#include <Handle_TDF_AttributeDelta.hxx>
#endif

#ifndef _Handle_TDF_Attribute_HeaderFile
#include <Handle_TDF_Attribute.hxx>
#endif
#ifndef _TDF_Label_HeaderFile
#include <TDF_Label.hxx>
#endif
#ifndef _MMgt_TShared_HeaderFile
#include <MMgt_TShared.hxx>
#endif
#ifndef _Standard_OStream_HeaderFile
#include <Standard_OStream.hxx>
#endif
class TDF_Attribute;
class TDF_Label;
class Standard_GUID;


//! This class discribes the services we need to <br>
//!           implement Delta and Undo/Redo services. <br>
//! <br>
//!          AttributeDeltas are applied in an unpredictable <br>
//!          order. But by the redefinition of the method <br>
//!          IsNowApplicable, a condition can be verified <br>
//!          before application. If the AttributeDelta is not <br>
//!          yet applicable, it is put at the end of the <br>
//!          AttributeDelta list, to be treated later. If a <br>
//!          dead lock if found on the list, the <br>
//!          AttributeDeltas are forced to be applied in an <br>
//!          unpredictable order. <br>
class TDF_AttributeDelta : public MMgt_TShared {

public:

  //! Applies the delta to the attribute. <br>
  Standard_EXPORT   virtual  void Apply()  = 0;
  //! Returns the label concerned by <me>. <br>
  Standard_EXPORT     TDF_Label Label() const;
  //! Returns the reference attribute. <br>
  Standard_EXPORT     Handle_TDF_Attribute Attribute() const;
  //! Returns the ID of the attribute concerned by <me>. <br>
  Standard_EXPORT     Standard_GUID ID() const;
  //! Dumps the contents. <br>
//! <br>
  Standard_EXPORT   virtual  Standard_OStream& Dump(Standard_OStream& OS) const;
    Standard_OStream& operator<<(Standard_OStream& OS) const
{
  return Dump(OS);
}




  DEFINE_STANDARD_RTTI(TDF_AttributeDelta)

protected:

  
  Standard_EXPORT   TDF_AttributeDelta(const Handle(TDF_Attribute)& anAttribute);



private: 


Handle_TDF_Attribute myAttribute;
TDF_Label myLabel;


};





// other Inline functions and methods (like "C++: function call" methods)


#endif