1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 #ifndef _STORE_OBJECT_HXX_ 29 #define _STORE_OBJECT_HXX_ 30 31 #ifndef _SAL_TYPES_H_ 32 #include "sal/types.h" 33 #endif 34 35 #ifndef _RTL_REF_HXX_ 36 #include "rtl/ref.hxx" 37 #endif 38 39 #ifndef _OSL_INTERLCK_H_ 40 #include "osl/interlck.h" 41 #endif 42 43 namespace store 44 { 45 46 /*======================================================================== 47 * 48 * IStoreHandle interface. 49 * 50 *======================================================================*/ 51 class IStoreHandle : public rtl::IReference 52 { 53 public: 54 /** Replaces dynamic_cast type checking. 55 */ 56 virtual sal_Bool SAL_CALL isKindOf (sal_uInt32 nTypeId) = 0; 57 }; 58 59 60 /** Template helper function as dynamic_cast replacement. 61 */ 62 template<class store_handle_type> 63 store_handle_type * SAL_CALL query ( 64 IStoreHandle * pHandle, store_handle_type *); 65 66 /*======================================================================== 67 * 68 * OStoreObject interface. 69 * 70 *======================================================================*/ 71 class OStoreObject : public store::IStoreHandle 72 { 73 /** Template function specialization as dynamic_cast replacement. 74 */ 75 friend OStoreObject* 76 SAL_CALL query<> (IStoreHandle *pHandle, OStoreObject*); 77 78 public: 79 /** Construction. 80 */ 81 OStoreObject (void); 82 83 /** Allocation. 84 */ 85 static void* operator new (size_t n); 86 static void operator delete (void *p, size_t); 87 88 /** IStoreHandle. 89 */ 90 virtual sal_Bool SAL_CALL isKindOf (sal_uInt32 nTypeId); 91 92 /** IReference. 93 */ 94 virtual oslInterlockedCount SAL_CALL acquire (void); 95 virtual oslInterlockedCount SAL_CALL release (void); 96 97 protected: 98 /** Destruction. 99 */ 100 virtual ~OStoreObject (void); 101 102 private: 103 /** The IStoreHandle TypeId. 104 */ 105 static const sal_uInt32 m_nTypeId; 106 107 /** Representation. 108 */ 109 oslInterlockedCount m_nRefCount; 110 111 /** Not implemented. 112 */ 113 OStoreObject (const OStoreObject&); 114 OStoreObject& operator= (const OStoreObject&); 115 }; 116 117 /** Template function specialization as dynamic_cast replacement. 118 */ 119 template<> inline OStoreObject* 120 SAL_CALL query (IStoreHandle *pHandle, OStoreObject*) 121 { 122 if (pHandle && pHandle->isKindOf (OStoreObject::m_nTypeId)) 123 { 124 // Handle is kind of OStoreObject. 125 return static_cast<OStoreObject*>(pHandle); 126 } 127 return 0; 128 } 129 130 /*======================================================================== 131 * 132 * The End. 133 * 134 *======================================================================*/ 135 136 } // namespace store 137 138 #endif /* !_STORE_OBJECT_HXX_ */ 139