1 -- Copyright (c) 1995-1999 Matra Datavision
2 -- Copyright (c) 1999-2014 OPEN CASCADE SAS
4 -- This file is part of Open CASCADE Technology software library.
6 -- This library is free software; you can redistribute it and/or modify it under
7 -- the terms of the GNU Lesser General Public License version 2.1 as published
8 -- by the Free Software Foundation, with special exception defined in the file
9 -- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
10 -- distribution for complete text of the license and disclaimer of any warranty.
12 -- Alternatively, this file may be used under the terms of Open CASCADE
13 -- commercial license or contractual agreement.
17 -- Version Date Purpose
18 -- Feb 3 1995 Creation
19 -- Dec 15 1996 Version CSFDB
23 ---Purpose: This package defines services to manage the storage grain of data
24 -- produced by applications and those classes to manage persistent
35 --deferred class RetrievalDriver;
36 --- to retrieve ExternShareable objects in the framework.
39 deferred class ExternShareable;
42 private class ExternRef;
44 private class PSeqOfExtRef instantiates HSequence from
45 PCollection (ExternRef from ObjMgt);