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c99ad5d760
Added possibility to inherit existing attributes if the same persistent fields are used. All methods that allow controlling the data model changes or getting some callbacks may be overridden in successor. They may have same GUIDs as a base class or new ones. Special macros IMPLEMENT_DERIVED_ATTRIBUTE and IMPLEMENT_DERIVED_ATTRIBUTE_WITH_TYPE must be used instead of standard Handle macro definition IMPLEMENT_STANDARD_RTTIEXT to register new derived attributes. Using this improvement several existing attributes from TDataStd, TDataXtd and XCAFDoc packages become inherited from other base attribute-classes. XML and Bin drivers of these attributes are removed. New base attribute classes are added: TDataStd_GenericEmpty and TDataStd_GenericExtString. This improvement does not change both present formats Bin and XML documents. The obsolete Standard scheme is not changed at all.
106 lines
3.1 KiB
C++
106 lines
3.1 KiB
C++
// 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 _XmlMDataStd_HeaderFile
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#define _XmlMDataStd_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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#include <Standard_Integer.hxx>
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class XmlMDF_ADriverTable;
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class Message_Messenger;
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class XmlMDataStd_GenericExtStringDriver;
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class XmlMDataStd_IntegerDriver;
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class XmlMDataStd_RealDriver;
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class XmlMDataStd_IntegerArrayDriver;
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class XmlMDataStd_RealArrayDriver;
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class XmlMDataStd_ExtStringArrayDriver;
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class XmlMDataStd_UAttributeDriver;
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class XmlMDataStd_VariableDriver;
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class XmlMDataStd_ExpressionDriver;
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class XmlMDataStd_RelationDriver;
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class XmlMDataStd_TreeNodeDriver;
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class XmlMDataStd_GenericEmptyDriver;
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class XmlMDataStd_IntegerListDriver;
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class XmlMDataStd_RealListDriver;
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class XmlMDataStd_ExtStringListDriver;
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class XmlMDataStd_BooleanListDriver;
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class XmlMDataStd_ReferenceListDriver;
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class XmlMDataStd_BooleanArrayDriver;
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class XmlMDataStd_ReferenceArrayDriver;
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class XmlMDataStd_ByteArrayDriver;
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class XmlMDataStd_NamedDataDriver;
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class XmlMDataStd_AsciiStringDriver;
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class XmlMDataStd_IntPackedMapDriver;
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//! Storage and Retrieval drivers for modelling attributes.
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//! Transient attributes are defined in package TDataStd.
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class XmlMDataStd
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{
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public:
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DEFINE_STANDARD_ALLOC
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//! Adds the attribute drivers to <aDriverTable>.
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Standard_EXPORT static void AddDrivers (const Handle(XmlMDF_ADriverTable)& aDriverTable, const Handle(Message_Messenger)& anMsgDrv);
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protected:
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private:
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friend class XmlMDataStd_GenericExtStringDriver;
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friend class XmlMDataStd_IntegerDriver;
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friend class XmlMDataStd_RealDriver;
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friend class XmlMDataStd_IntegerArrayDriver;
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friend class XmlMDataStd_RealArrayDriver;
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friend class XmlMDataStd_ExtStringArrayDriver;
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friend class XmlMDataStd_UAttributeDriver;
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friend class XmlMDataStd_VariableDriver;
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friend class XmlMDataStd_ExpressionDriver;
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friend class XmlMDataStd_RelationDriver;
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friend class XmlMDataStd_TreeNodeDriver;
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friend class XmlMDataStd_GenericEmptyDriver;
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friend class XmlMDataStd_IntegerListDriver;
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friend class XmlMDataStd_RealListDriver;
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friend class XmlMDataStd_ExtStringListDriver;
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friend class XmlMDataStd_BooleanListDriver;
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friend class XmlMDataStd_ReferenceListDriver;
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friend class XmlMDataStd_BooleanArrayDriver;
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friend class XmlMDataStd_ReferenceArrayDriver;
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friend class XmlMDataStd_ByteArrayDriver;
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friend class XmlMDataStd_NamedDataDriver;
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friend class XmlMDataStd_AsciiStringDriver;
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friend class XmlMDataStd_IntPackedMapDriver;
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};
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#endif // _XmlMDataStd_HeaderFile
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