-- Created by: DAUTRY Philippe -- Copyright (c) 1997-1999 Matra Datavision -- Copyright (c) 1999-2014 OPEN CASCADE SAS -- -- This file is part of Open CASCADE Technology software library. -- -- This library is free software; you can redistribute it and/or modify it under -- the terms of the GNU Lesser General Public License version 2.1 as published -- by the Free Software Foundation, with special exception defined in the file -- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT -- distribution for complete text of the license and disclaimer of any warranty. -- -- Alternatively, this file may be used under the terms of Open CASCADE -- commercial license or contractual agreement. -- ------------------- ---Version: 0.0 --Version Date Purpose -- 0.0 Nov 4 1997 Creation class Transaction from DDF inherits TShared from MMgt ---Purpose: This class encapsulates TDF_Transaction. uses Data from TDF, Delta from TDF, Transaction from TDF raises DomainError, NullObject from Standard is Create returns Transaction from DDF; ---Purpose: Creates an empty transaction context, unable to be -- opened. Create(aDF : Data from TDF) returns Transaction from DDF; ---Purpose: Creates a transaction context on , ready to -- be opened. Open(me : mutable) returns Integer from Standard; ---Purpose: If not yet done, opens a new transaction on -- . Returns the index of the just opened -- transaction. -- -- It raises DomainError if the transaction is -- already open, and NullObject if there is no -- current Data framework. Commit(me : mutable; withDelta : Boolean from Standard = Standard_False) returns Delta from TDF; ---Purpose: Commits the transactions until AND including the -- current opened one. Abort(me : mutable); ---Purpose: Aborts the transactions until AND including the -- current opened one. -- ---C++: alias ~ Data(me) returns Data from TDF; ---Purpose: Returns the Data from TDF. Transaction(me) returns Integer from Standard; ---Purpose: Returns the number of the transaction opened by . IsOpen(me) returns Boolean from Standard; ---Purpose: Returns true if the transaction is open. fields myTransaction : Transaction from TDF; end Transaction;