1 -- Created by: DAUTRY Philippe
2 -- Copyright (c) 1997-1999 Matra Datavision
3 -- Copyright (c) 1999-2012 OPEN CASCADE SAS
5 -- The content of this file is subject to the Open CASCADE Technology Public
6 -- License Version 6.5 (the "License"). You may not use the content of this file
7 -- except in compliance with the License. Please obtain a copy of the License
8 -- at http://www.opencascade.org and read it completely before using this file.
10 -- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
11 -- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
13 -- The Original Code and all software distributed under the License is
14 -- distributed on an "AS IS" basis, without warranty of any kind, and the
15 -- Initial Developer hereby disclaims all such warranties, including without
16 -- limitation, any warranties of merchantability, fitness for a particular
17 -- purpose or non-infringement. Please see the License for the specific terms
18 -- and conditions governing the rights and limitations under the License.
20 -- -------------------
23 --Version Date Purpose
24 -- 0.0 Nov 4 1997 Creation
26 class Transaction from DDF
27 inherits TShared from MMgt
29 ---Purpose: This class encapsulates TDF_Transaction.
39 DomainError, NullObject from Standard
44 returns Transaction from DDF;
45 ---Purpose: Creates an empty transaction context, unable to be
48 Create(aDF : Data from TDF)
49 returns Transaction from DDF;
50 ---Purpose: Creates a transaction context on <aDF>, ready to
54 returns Integer from Standard;
55 ---Purpose: If not yet done, opens a new transaction on
56 -- <myDF>. Returns the index of the just opened
59 -- It raises DomainError if the transaction is
60 -- already open, and NullObject if there is no
61 -- current Data framework.
64 withDelta : Boolean from Standard = Standard_False)
65 returns Delta from TDF;
66 ---Purpose: Commits the transactions until AND including the
67 -- current opened one.
70 ---Purpose: Aborts the transactions until AND including the
71 -- current opened one.
75 Data(me) returns Data from TDF;
76 ---Purpose: Returns the Data from TDF.
78 Transaction(me) returns Integer from Standard;
79 ---Purpose: Returns the number of the transaction opened by <me>.
82 returns Boolean from Standard;
83 ---Purpose: Returns true if the transaction is open.
88 myTransaction : Transaction from TDF;