1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef DBAUI_DATASOURCEMAP_HXX 25 #define DBAUI_DATASOURCEMAP_HXX 26 27 #ifndef _COM_SUN_STAR_BEANS_XPROPERTYSET_HPP_ 28 #include <com/sun/star/beans/XPropertySet.hpp> 29 #endif 30 #ifndef _COM_SUN_STAR_CONTAINER_XNAMEACCESS_HPP_ 31 #include <com/sun/star/container/XNameAccess.hpp> 32 #endif 33 #ifndef _COM_SUN_STAR_LANG_XMULTISERVICEFACTORY_HPP_ 34 #include <com/sun/star/lang/XMultiServiceFactory.hpp> 35 #endif 36 #ifndef _COMPHELPER_STLTYPES_HXX_ 37 #include <comphelper/stl_types.hxx> 38 #endif 39 #ifndef _STRING_HXX 40 #include <tools/string.hxx> 41 #endif 42 43 class SfxItemPool; 44 class SfxItemSet; 45 //......................................................................... 46 namespace dbaui 47 { 48 //......................................................................... 49 50 //===================================================================== 51 //= ODatasourceMap 52 //===================================================================== 53 class ODatasourceMap 54 { 55 struct DatasourceInfo 56 { 57 ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet > 58 xDatasource; 59 SfxItemSet* pModifications; 60 61 DatasourceInfo() :pModifications (NULL) { } 62 DatasourceInfo(const ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet >& _rxDS, 63 SfxItemSet* _pMods = NULL) 64 :xDatasource(_rxDS), pModifications(_pMods) { } 65 }; 66 67 ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > 68 m_xORB; /// service factory 69 ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameAccess > 70 m_xDatabaseContext; /// database context we're working in 71 72 DECLARE_STL_USTRINGACCESS_MAP(DatasourceInfo, DatasourceInfos); 73 DatasourceInfos m_aDatasources; /// known infos about data sources 74 75 // deleted data sources, not necessarily with distinct names, that's why accessed via unique ids 76 DECLARE_STL_MAP(sal_Int32, DatasourceInfo, ::std::less< sal_Int32 >, MapInt2Info); 77 MapInt2Info m_aDeletedDatasources; 78 79 public: 80 /// iterating through all data sources 81 class Iterator; 82 friend class ODatasourceMap::Iterator; 83 84 /// encapsulates the infos about a data source for access from outside the class 85 class ODatasourceInfo; 86 friend class ODatasourceMap::ODatasourceInfo; 87 88 ODatasourceInfo operator[](const ::rtl::OUString _rName); 89 90 ODatasourceMap(const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory > _rxORB); 91 92 // get the database context 93 ::com::sun::star::uno::Reference< ::com::sun::star::container::XNameAccess > 94 getContext() { return m_xDatabaseContext; } 95 96 /// first element for iterating through the datasources 97 Iterator begin(); 98 /// last element for iterating through the datasources 99 Iterator end(); 100 101 /// first element for iterating through the deleted datasources 102 Iterator beginDeleted(); 103 /// last element for iterating through the deleted datasources 104 Iterator endDeleted(); 105 106 /// check if the object contains a valid datasource enumeration 107 sal_Bool isValid() const { return m_xDatabaseContext.is(); } 108 /// check if a datasource with the given name exists 109 sal_Bool exists(const ::rtl::OUString& _rName) const; 110 /// return the number of datasources available 111 sal_Int32 size() const { return m_aDatasources.size(); } 112 /// clear the map (non-deleted <em>and</em> deleted items) 113 void clear(); 114 /// clear the map (deleted items only) 115 void clearDeleted(); 116 117 /// clear the modification items for a datasource 118 void clearModifiedFlag(const ::rtl::OUString& _rName); 119 120 /** tell the map that a data source is scheduled to be deleted. 121 @return id for accessing the deleted data source later. -1 if no free id existed or an error occured 122 */ 123 sal_Int32 markDeleted(const ::rtl::OUString& _rName); 124 125 /** restores a datasource which has previously been marked as deleted.<p/> 126 @param _nAccessId the access id as got from <method>markDeleted</method> 127 @param _rName contains, upon return, the name of the datasource the access key refers to 128 @return sal_True if the datasource was successfully restored, sal_False if it could not be restored 129 because of a naming conflict (e.g. because another data source now has the name of the 130 to-be-restored one). 131 @see renamed 132 @see markDeleted 133 */ 134 sal_Bool restoreDeleted(sal_Int32 _nAccessId, ::rtl::OUString& _rName); 135 136 /// remove an element from the map 137 void deleted(const ::rtl::OUString& _rName); 138 // (should be an erase(const Iterator&), but this is way to general ... 139 140 /// update the infos for a data source with a given item set 141 void update(const ::rtl::OUString& _rName, SfxItemSet& _rSet); 142 /** Tells the map that an entry has been renamed in a sense that it should be accessible under 143 a new name. This does not necesssarily mean that the data source has been renamed within 144 it's database context 145 */ 146 void renamed(const ::rtl::OUString& _rOldName, const ::rtl::OUString& _rNewName); 147 148 /** adjust the registration name if necessary<p/> 149 The real name of the data source (as indicated in the SfxItemSet for this ds) may be another 150 one than the name the ds is registered for. This method corrects this, the ds will become registered 151 under it's real name. 152 @param _rName the name the ds is registered for 153 @return the real name of the data source 154 */ 155 ::rtl::OUString adjustRealName(const ::rtl::OUString& _rName); 156 157 protected: 158 /** ensure that the DatabaseInfo for the named object is filled<p/> 159 This method allows us lazy access to the data sources: They're retrieved from the context 160 only if they're accessed by somebody. 161 */ 162 void ensureObject(const ::rtl::OUString& _rName); 163 }; 164 165 //------------------------------------------------------------------------- 166 //- ODatasourceMap::ODatasourceInfo 167 //------------------------------------------------------------------------- 168 class ODatasourceMap::ODatasourceInfo 169 { 170 friend class ODatasourceMap; 171 friend class ODatasourceMap::Iterator; 172 173 private: 174 ODatasourceMap* m_pOwner; 175 const ODatasourceMap::DatasourceInfo& m_rInfoImpl; 176 ::rtl::OUString m_sName; 177 sal_Int32 m_nAccessKey; 178 179 public: 180 ODatasourceInfo(const ODatasourceInfo& _rSource) 181 :m_pOwner(_rSource.m_pOwner), m_sName(_rSource.m_sName), m_rInfoImpl(_rSource.m_rInfoImpl), m_nAccessKey(_rSource.m_nAccessKey) { } 182 183 /// check if the datasource settings are modified 184 sal_Bool isModified() const; 185 /// get the name the datasource is registered under 186 ::rtl::OUString getName() const { return m_sName; } 187 /// get the original name of a datasource (may habe been renamed) 188 ::rtl::OUString getOriginalName() const; 189 /// get the real name of the datasource, which is the name which is in the item set 190 ::rtl::OUString getRealName() const; 191 /// check if the datasource should is about to be renamed (which means the original name does not equal the real name 192 sal_Bool isRenamed() const { return !getRealName().equals(getOriginalName()); } 193 /// get the key used to acces the object in the data source map 194 sal_Int32 getAccessKey() const { return m_nAccessKey; } 195 196 /// return the datasource the object represents 197 ::com::sun::star::uno::Reference< ::com::sun::star::beans::XPropertySet > 198 getDatasource() const; 199 /** return the modifications for the data source<p/> 200 The return value is non-NULL if and only if <method>isModified</method> returned sal_True 201 */ 202 const SfxItemSet* 203 getModifications() const { return m_rInfoImpl.pModifications; } 204 205 operator ::rtl::OUString() const { return getName(); } 206 operator String() const { return getName().getStr(); } 207 208 const ODatasourceInfo* const operator->() const { return this; } 209 210 protected: 211 ODatasourceInfo( 212 ODatasourceMap* _pOwner, const ::rtl::OUString& _rName, 213 const ODatasourceMap::DatasourceInfo& _rSource, sal_Int32 _nAccessKey) 214 :m_pOwner(_pOwner), m_sName(_rName), m_rInfoImpl(_rSource), m_nAccessKey(_nAccessKey) { } 215 }; 216 217 //------------------------------------------------------------------------- 218 //- ODatasourceMap::Iterator 219 //------------------------------------------------------------------------- 220 class ODatasourceMap::Iterator 221 { 222 friend class ODatasourceMap; 223 protected: 224 ODatasourceMap* m_pOwner; 225 ODatasourceMap::ConstDatasourceInfosIterator m_aPos; 226 ODatasourceMap::ConstMapInt2InfoIterator m_aPosDeleted; 227 sal_Bool m_bLoopingDeleted; 228 229 public: 230 Iterator(const Iterator& _rSource); 231 232 ODatasourceInfo operator->() const; 233 ODatasourceInfo operator*() const; 234 235 /// prefix increment 236 const Iterator& operator++(); 237 /// postfix increment 238 const Iterator operator++(int) { Iterator hold(*this); ++*this; return hold; } 239 240 /// prefix decrement 241 const Iterator& operator--(); 242 /// postfix decrement 243 const Iterator operator--(int) { Iterator hold(*this); --*this; return hold; } 244 245 246 // compare two iterators 247 friend bool operator==(const Iterator& lhs, const Iterator& rhs) 248 { 249 if (lhs.m_bLoopingDeleted) 250 return lhs.m_aPosDeleted == rhs.m_aPosDeleted; 251 else 252 return lhs.m_aPos == rhs.m_aPos; 253 } 254 255 friend bool operator!=(const Iterator& lhs, const Iterator& rhs) { return !(lhs == rhs); } 256 257 protected: 258 Iterator(ODatasourceMap* _pOwner, ODatasourceMap::ConstDatasourceInfosIterator _rPos); 259 Iterator(ODatasourceMap* _pOwner, ODatasourceMap::ConstMapInt2InfoIterator _rPos); 260 261 protected: 262 ::rtl::OUString implGetName(const ODatasourceMap::DatasourceInfo& _rInfo) const; 263 }; 264 265 //......................................................................... 266 } // namespace dbaui 267 //......................................................................... 268 269 #endif // DBAUI_DATASOURCEMAP_HXX 270 271