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59 lines
2.1 KiB
C++
59 lines
2.1 KiB
C++
// Created on: 1996-04-30
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// Created by: cle
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// Copyright (c) 1996-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Storage_HeaderFile
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#define _Storage_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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class TCollection_AsciiString;
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//! Storage package is used to write and read persistent objects.
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//! These objects are read and written by a retrieval or storage
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//! algorithm (Storage_Schema object) in a container (disk, memory,
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//! network ...). Drivers (FSD_File objects) assign a physical
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//! container for data to be stored or retrieved.
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//! The standard procedure for an application in
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//! reading a container is the following:
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//! - open the driver in reading mode,
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//! - call the Read function from the schema,
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//! setting the driver as a parameter. This function returns
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//! an instance of the Storage_Data class which contains the data being read,
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//! - close the driver.
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//! The standard procedure for an application in writing a container is the following:
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//! - open the driver in writing mode,
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//! - create an instance of the Storage_Data class, then
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//! add the persistent data to write with the function AddRoot,
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//! - call the function Write from the schema,
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//! setting the driver and the Storage_Data instance as parameters,
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//! - close the driver.
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class Storage
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! returns the version of Storage's read/write routines
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Standard_EXPORT static TCollection_AsciiString Version();
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};
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#endif // _Storage_HeaderFile
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