110 lines
3.1 KiB
C++
110 lines
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_STORE_SOURCE_OBJECT_HXX
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#define INCLUDED_STORE_SOURCE_OBJECT_HXX
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#include "sal/types.h"
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#include "osl/interlck.h"
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#include "salhelper/simplereferenceobject.hxx"
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namespace store
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{
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/*========================================================================
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*
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* IStoreHandle interface.
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*
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*======================================================================*/
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class IStoreHandle : public virtual salhelper::SimpleReferenceObject
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{
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public:
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/** Replaces dynamic_cast type checking.
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*/
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virtual bool isKindOf (sal_uInt32 nTypeId) = 0;
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protected:
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virtual ~IStoreHandle() {}
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};
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/** Template helper function as dynamic_cast replacement.
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*/
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template<class store_handle_type>
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store_handle_type * SAL_CALL query (
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IStoreHandle * pHandle, store_handle_type *);
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/*========================================================================
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*
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* OStoreObject interface.
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*
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*======================================================================*/
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class OStoreObject : public store::IStoreHandle
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{
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/** Template function specialization as dynamic_cast replacement.
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*/
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friend OStoreObject*
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SAL_CALL query<> (IStoreHandle *pHandle, OStoreObject*);
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public:
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/** Construction.
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*/
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OStoreObject() {}
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/** IStoreHandle.
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*/
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virtual bool isKindOf (sal_uInt32 nTypeId) SAL_OVERRIDE;
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protected:
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/** Destruction.
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*/
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virtual ~OStoreObject() {}
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private:
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/** The IStoreHandle TypeId.
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*/
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static const sal_uInt32 m_nTypeId;
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OStoreObject (const OStoreObject&) SAL_DELETED_FUNCTION;
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OStoreObject& operator= (const OStoreObject&) SAL_DELETED_FUNCTION;
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};
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/** Template function specialization as dynamic_cast replacement.
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*/
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template<> inline OStoreObject*
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SAL_CALL query (IStoreHandle *pHandle, OStoreObject*)
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{
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if (pHandle && pHandle->isKindOf (OStoreObject::m_nTypeId))
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{
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// Handle is kind of OStoreObject.
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return static_cast<OStoreObject*>(pHandle);
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}
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return 0;
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}
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/*========================================================================
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*
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* The End.
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*
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*======================================================================*/
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} // namespace store
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#endif // INCLUDED_STORE_SOURCE_OBJECT_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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