Line data    Source code

       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 "rtl/ref.hxx"
      25             : #include "osl/interlck.h"
      26             : #include "salhelper/simplereferenceobject.hxx"
      27             : 
      28             : namespace store
      29             : {
      30             : 
      31             : /*========================================================================
      32             :  *
      33             :  * IStoreHandle interface.
      34             :  *
      35             :  *======================================================================*/
      36        3862 : class IStoreHandle : public virtual salhelper::SimpleReferenceObject
      37             : {
      38             : public:
      39             :     /** Replaces dynamic_cast type checking.
      40             :      */
      41             :     virtual bool isKindOf (sal_uInt32 nTypeId) = 0;
      42             : 
      43             : protected:
      44        3846 :     virtual ~IStoreHandle() {}
      45             : };
      46             : 
      47             : /** Template helper function as dynamic_cast replacement.
      48             :  */
      49             : template<class store_handle_type>
      50             : store_handle_type * SAL_CALL query (
      51             :     IStoreHandle * pHandle, store_handle_type *);
      52             : 
      53             : /*========================================================================
      54             :  *
      55             :  * OStoreObject interface.
      56             :  *
      57             :  *======================================================================*/
      58             : class OStoreObject : public store::IStoreHandle
      59             : {
      60             :     /** Template function specialization as dynamic_cast replacement.
      61             :      */
      62             :     friend OStoreObject*
      63             :     SAL_CALL query<> (IStoreHandle *pHandle, OStoreObject*);
      64             : 
      65             : public:
      66             :     /** Construction.
      67             :      */
      68        3862 :     OStoreObject() : m_nRefCount(0) {}
      69             : 
      70             :     /** IStoreHandle.
      71             :      */
      72             :     virtual bool isKindOf (sal_uInt32 nTypeId) SAL_OVERRIDE;
      73             : 
      74             : protected:
      75             :     /** Destruction.
      76             :      */
      77        3846 :     virtual ~OStoreObject() {}
      78             : 
      79             : private:
      80             :     /** The IStoreHandle TypeId.
      81             :      */
      82             :     static const sal_uInt32 m_nTypeId;
      83             : 
      84             :     /** Representation.
      85             :      */
      86             :     oslInterlockedCount m_nRefCount;
      87             : 
      88             :     /** Not implemented.
      89             :      */
      90             :     OStoreObject (const OStoreObject&);
      91             :     OStoreObject& operator= (const OStoreObject&);
      92             : };
      93             : 
      94             : /** Template function specialization as dynamic_cast replacement.
      95             :  */
      96             : template<> inline OStoreObject*
      97             : SAL_CALL query (IStoreHandle *pHandle, OStoreObject*)
      98             : {
      99             :     if (pHandle && pHandle->isKindOf (OStoreObject::m_nTypeId))
     100             :     {
     101             :         // Handle is kind of OStoreObject.
     102             :         return static_cast<OStoreObject*>(pHandle);
     103             :     }
     104             :     return 0;
     105             : }
     106             : 
     107             : /*========================================================================
     108             :  *
     109             :  * The End.
     110             :  *
     111             :  *======================================================================*/
     112             : 
     113             : } // namespace store
     114             : 
     115             : #endif // INCLUDED_STORE_SOURCE_OBJECT_HXX
     116             : 
     117             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */