///////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2002-2016, Open Design Alliance (the "Alliance").
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// All rights reserved.
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//
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// This software and its documentation and related materials are owned by
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// the Alliance. The software may only be incorporated into application
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// programs owned by members of the Alliance, subject to a signed
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// Membership Agreement and Supplemental Software License Agreement with the
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// Alliance. The structure and organization of this software are the valuable
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// trade secrets of the Alliance and its suppliers. The software is also
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// protected by copyright law and international treaty provisions. Application
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// programs incorporating this software must include the following statement
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// with their copyright notices:
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//
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// This application incorporates Teigha(R) software pursuant to a license
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// agreement with Open Design Alliance.
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// Teigha(R) Copyright (C) 2002-2016 by Open Design Alliance.
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// All rights reserved.
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//
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// By use of this software, its documentation or related materials, you
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// acknowledge and accept the above terms.
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///////////////////////////////////////////////////////////////////////////////
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#ifndef OD_DBFILTER_H
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#define OD_DBFILTER_H
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#include "DbObject.h"
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class OdRxClass;
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/** \details
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The class is the base class for all OdDb Filter objects.
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\sa
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TD_Db
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\remarks
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This class defines a query and supplies a key to the
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OdDbCompositeFilteredBlockIterator object. The index corresponding
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to this key obtained through indexClass().
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\sa
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* OdDbIndexFilterManager
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* OdDbIndex
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* OdDbFilteredBlockIterator
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* OdDbCompositeFilteredBlockIterator
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<group OdDb_Classes>
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*/
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class TOOLKIT_EXPORT OdDbFilter : public OdDbObject
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{
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public:
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ODDB_DECLARE_MEMBERS(OdDbFilter);
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OdDbFilter();
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/** \details
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Returns the class descriptor of the OdDbIndex for this Filter object.
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\remarks
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This function is used by the init() method of the OdDbCompositeFilteredBlockIterator object.
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*/
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virtual OdRxClass* indexClass() const = 0;
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OdResult dxfInFields(
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OdDbDxfFiler* pFiler);
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void dxfOutFields(
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OdDbDxfFiler* pFiler) const;
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};
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/** \details
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This template class is a specialization of the OdSmartPtr class for OdDbFilter object pointers.
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*/
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typedef OdSmartPtr<OdDbFilter> OdDbFilterPtr;
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#endif // OD_DBFILTER_H
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