// 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_Transaction_HeaderFile
#define _TDF_Transaction_HeaderFile

#ifndef _Standard_HeaderFile
#include <Standard.hxx>
#endif
#ifndef _Standard_Macro_HeaderFile
#include <Standard_Macro.hxx>
#endif

#ifndef _Handle_TDF_Data_HeaderFile
#include <Handle_TDF_Data.hxx>
#endif
#ifndef _Standard_Integer_HeaderFile
#include <Standard_Integer.hxx>
#endif
#ifndef _TCollection_AsciiString_HeaderFile
#include <TCollection_AsciiString.hxx>
#endif
#ifndef _Handle_TDF_Delta_HeaderFile
#include <Handle_TDF_Delta.hxx>
#endif
#ifndef _Standard_Boolean_HeaderFile
#include <Standard_Boolean.hxx>
#endif
class TDF_Data;
class Standard_DomainError;
class Standard_NullObject;
class TDF_Delta;
class TCollection_AsciiString;


//! This class offers services to open, commit or <br>
//!          abort a transaction in a more secure way than <br>
//!          using Data from TDF. If you forget to close a <br>
//!          transaction, it will be automaticaly aborted at <br>
//!          the destruction of this object, at the closure of <br>
//!          its scope. <br>
//! <br>
//!          In case of catching errors, the effect will be the <br>
//!          same: aborting transactions until the good current <br>
//!          one. <br>
class TDF_Transaction  {
public:

  void* operator new(size_t,void* anAddress) 
  {
    return anAddress;
  }
  void* operator new(size_t size) 
  {
    return Standard::Allocate(size); 
  }
  void  operator delete(void *anAddress) 
  {
    if (anAddress) Standard::Free((Standard_Address&)anAddress); 
  }

  //! Creates an empty transaction context, unable to be <br>
//!          opened. <br>
  Standard_EXPORT   TDF_Transaction(const TCollection_AsciiString& aName = "");
  //! Creates a transaction context on <aDF>, ready to <br>
//!          be opened. <br>
  Standard_EXPORT   TDF_Transaction(const Handle(TDF_Data)& aDF,const TCollection_AsciiString& aName = "");
  //! Aborts all the transactions on <myDF> and sets <br>
//!          <aDF> to build a transaction context on <aDF>, <br>
//!          ready to be opened. <br>
  Standard_EXPORT     void Initialize(const Handle(TDF_Data)& aDF) ;
  //! If not yet done, opens a new transaction on <br>
//!          <myDF>. Returns the index of the just opened <br>
//!          transaction. <br>
//! <br>
//!          It raises DomainError if the transaction is <br>
//!          already open, and NullObject if there is no <br>
//!          current Data framework. <br>
  Standard_EXPORT     Standard_Integer Open() ;
  //! Commits the transactions until AND including the <br>
//!          current opened one. <br>
  Standard_EXPORT     Handle_TDF_Delta Commit(const Standard_Boolean withDelta = Standard_False) ;
  //! Aborts the transactions until AND including the <br>
//!          current opened one. <br>
//! <br>
  Standard_EXPORT     void Abort() ;
~TDF_Transaction()
{
  Abort();
}
  //! Returns the Data from TDF. <br>
//! <br>
        Handle_TDF_Data Data() const;
  //! Returns the number of the transaction opened by <me>. <br>
//! <br>
        Standard_Integer Transaction() const;
  //! Returns the transaction name. <br>
//! <br>
  Standard_EXPORT    const TCollection_AsciiString& Name() const;
  //! Returns true if the transaction is open. <br>
//! <br>
        Standard_Boolean IsOpen() const;





protected:





private:

  //! Private to avoid copy. <br>
  Standard_EXPORT   TDF_Transaction(const TDF_Transaction& aTrans);


Handle_TDF_Data myDF;
Standard_Integer myUntilTransaction;
TCollection_AsciiString myName;


};


#include <TDF_Transaction.lxx>



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


#endif