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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_STORE_SOURCE_OBJECT_HXX
      21             : #define INCLUDED_STORE_SOURCE_OBJECT_HXX
      22             : 
      23             : #include "sal/types.h"
      24             : #include "osl/interlck.h"
      25             : #include "salhelper/simplereferenceobject.hxx"
      26             : 
      27             : namespace store
      28             : {
      29             : 
      30             : /*========================================================================
      31             :  *
      32             :  * IStoreHandle interface.
      33             :  *
      34             :  *======================================================================*/
      35        1926 : class IStoreHandle : public virtual salhelper::SimpleReferenceObject
      36             : {
      37             : public:
      38             :     /** Replaces dynamic_cast type checking.
      39             :      */
      40             :     virtual bool isKindOf (sal_uInt32 nTypeId) = 0;
      41             : 
      42             : protected:
      43        1918 :     virtual ~IStoreHandle() {}
      44             : };
      45             : 
      46             : /** Template helper function as dynamic_cast replacement.
      47             :  */
      48             : template<class store_handle_type>
      49             : store_handle_type * SAL_CALL query (
      50             :     IStoreHandle * pHandle, store_handle_type *);
      51             : 
      52             : /*========================================================================
      53             :  *
      54             :  * OStoreObject interface.
      55             :  *
      56             :  *======================================================================*/
      57             : class OStoreObject : public store::IStoreHandle
      58             : {
      59             :     /** Template function specialization as dynamic_cast replacement.
      60             :      */
      61             :     friend OStoreObject*
      62             :     SAL_CALL query<> (IStoreHandle *pHandle, OStoreObject*);
      63             : 
      64             : public:
      65             :     /** Construction.
      66             :      */
      67        1926 :     OStoreObject() {}
      68             : 
      69             :     /** IStoreHandle.
      70             :      */
      71             :     virtual bool isKindOf (sal_uInt32 nTypeId) SAL_OVERRIDE;
      72             : 
      73             : protected:
      74             :     /** Destruction.
      75             :      */
      76        1918 :     virtual ~OStoreObject() {}
      77             : 
      78             : private:
      79             :     /** The IStoreHandle TypeId.
      80             :      */
      81             :     static const sal_uInt32 m_nTypeId;
      82             :     OStoreObject (const OStoreObject&) SAL_DELETED_FUNCTION;
      83             :     OStoreObject& operator= (const OStoreObject&) SAL_DELETED_FUNCTION;
      84             : };
      85             : 
      86             : /** Template function specialization as dynamic_cast replacement.
      87             :  */
      88             : template<> inline OStoreObject*
      89             : SAL_CALL query (IStoreHandle *pHandle, OStoreObject*)
      90             : {
      91             :     if (pHandle && pHandle->isKindOf (OStoreObject::m_nTypeId))
      92             :     {
      93             :         // Handle is kind of OStoreObject.
      94             :         return static_cast<OStoreObject*>(pHandle);
      95             :     }
      96             :     return 0;
      97             : }
      98             : 
      99             : /*========================================================================
     100             :  *
     101             :  * The End.
     102             :  *
     103             :  *======================================================================*/
     104             : 
     105             : } // namespace store
     106             : 
     107             : #endif // INCLUDED_STORE_SOURCE_OBJECT_HXX
     108             : 
     109             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */