Alexandre Lision | ddd731e | 2014-01-31 11:50:08 -0500 | [diff] [blame] | 1 | // Copyright (C) 2006-2010 David Sugar, Tycho Softworks. |
| 2 | // |
| 3 | // This file is part of GNU uCommon C++. |
| 4 | // |
| 5 | // GNU uCommon C++ is free software: you can redistribute it and/or modify |
| 6 | // it under the terms of the GNU Lesser General Public License as published |
| 7 | // by the Free Software Foundation, either version 3 of the License, or |
| 8 | // (at your option) any later version. |
| 9 | // |
| 10 | // GNU uCommon C++ is distributed in the hope that it will be useful, |
| 11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | // GNU Lesser General Public License for more details. |
| 14 | // |
| 15 | // You should have received a copy of the GNU Lesser General Public License |
| 16 | // along with GNU uCommon C++. If not, see <http://www.gnu.org/licenses/>. |
| 17 | |
| 18 | /** |
| 19 | * The GNU Common C++ persistance engine by Daniel Silverstone. |
| 20 | * @file ucommon/persist.h |
| 21 | */ |
| 22 | |
| 23 | #if defined(OLD_STDCPP) || defined(NEW_STDCPP) |
| 24 | #if !defined(_MSC_VER) || _MSC_VER >= 1400 |
| 25 | #ifndef _UCOMMON_PERSIST_H_ |
| 26 | #define _UCOMMON_PERSIST_H_ |
| 27 | |
| 28 | #ifndef _UCOMMON_PLATFORM_H_ |
| 29 | #include <ucommon/platform.h> |
| 30 | #endif |
| 31 | |
| 32 | #include <iostream> |
| 33 | #include <string> |
| 34 | #include <vector> |
| 35 | #include <deque> |
| 36 | #include <map> |
| 37 | |
| 38 | NAMESPACE_UCOMMON |
| 39 | #define NS_PREFIX ucc:: |
| 40 | |
| 41 | // This typedef allows us to declare NewPersistObjectFunction now |
| 42 | typedef class PersistObject* (*NewPersistObjectFunction) (void); |
| 43 | |
| 44 | class __EXPORT PersistException |
| 45 | { |
| 46 | public: |
| 47 | PersistException(const std::string& reason); |
| 48 | const std::string& getString() const; |
| 49 | |
| 50 | virtual ~PersistException() throw(); |
| 51 | |
| 52 | protected: |
| 53 | std::string _what; |
| 54 | }; |
| 55 | |
| 56 | /** |
| 57 | * Type manager for persistence engine. |
| 58 | * This class manages the types for generation of the persistent objects. |
| 59 | * Its data structures are managed automatically by the system. They are |
| 60 | * implicitly filled by the constructors who declare classes to the system. |
| 61 | * |
| 62 | * @author Daniel Silverstone |
| 63 | */ |
| 64 | class __EXPORT TypeManager |
| 65 | { |
| 66 | public: |
| 67 | /** |
| 68 | * This manages a registration to the typemanager - attempting to |
| 69 | * remove problems with the optimizers |
| 70 | */ |
| 71 | class registration |
| 72 | { |
| 73 | public: |
| 74 | registration(const char* name, NewPersistObjectFunction func); |
| 75 | virtual ~registration(); |
| 76 | private: |
| 77 | std::string myName; |
| 78 | }; |
| 79 | |
| 80 | /** |
| 81 | * This adds a new construction function to the type manager |
| 82 | */ |
| 83 | static void add(const char* name, NewPersistObjectFunction construction); |
| 84 | |
| 85 | /** |
| 86 | * And this one removes a type from the managers lists |
| 87 | */ |
| 88 | static void remove(const char* name); |
| 89 | |
| 90 | /** |
| 91 | * This function creates a new object of the required type and |
| 92 | * returns a pointer to it. NULL is returned if we couldn't find |
| 93 | * the type |
| 94 | */ |
| 95 | static PersistObject* createInstanceOf(const char* name); |
| 96 | |
| 97 | typedef std::map<std::string,NewPersistObjectFunction> StringFunctionMap; |
| 98 | }; |
| 99 | |
| 100 | /* |
| 101 | * The following defines are used to declare and define the relevant code |
| 102 | * to allow a class to use the Persistence::Engine code. |
| 103 | */ |
| 104 | |
| 105 | #define DECLARE_PERSISTENCE(ClassType) \ |
| 106 | public: \ |
| 107 | friend NS_PREFIX PersistEngine& operator>>( NS_PREFIX PersistEngine& ar, ClassType *&ob); \ |
| 108 | friend NS_PREFIX PersistEngine& operator<<( NS_PREFIX PersistEngine& ar, ClassType const &ob); \ |
| 109 | friend NS_PREFIX PersistObject *createNew##ClassType(); \ |
| 110 | virtual const char* getPersistenceID() const; \ |
| 111 | static NS_PREFIX TypeManager::Registration registrationFor##ClassType; |
| 112 | |
| 113 | #define IMPLEMENT_PERSISTENCE(ClassType, FullyQualifiedName) \ |
| 114 | NS_PREFIX PersistObject *createNew##ClassType() { return new ClassType; } \ |
| 115 | const char* ClassType::getPersistenceID() const {return FullyQualifiedName;} \ |
| 116 | NS_PREFIX PersistEngine& operator>>(NS_PREFIX PersistEngine& ar, ClassType &ob) \ |
| 117 | { ar >> (NS_PREFIX PersistObject &) ob; return ar; } \ |
| 118 | NS_PREFIX PersistEngine& operator>>(NS_PREFIX PersistEngine& ar, ClassType *&ob) \ |
| 119 | { ar >> (NS_PREFIX PersistObject *&) ob; return ar; } \ |
| 120 | NS_PREFIX PersistEngine& operator<<(NS_PREFIX PersistEngine& ar, ClassType const &ob) \ |
| 121 | { ar << (NS_PREFIX PersistObject const *)&ob; return ar; } \ |
| 122 | NS_PREFIX TypeManager::Registration \ |
| 123 | ClassType::registrationFor##ClassType(FullyQualifiedName, \ |
| 124 | createNew##ClassType); |
| 125 | |
| 126 | class PersistEngine; |
| 127 | |
| 128 | /** |
| 129 | * PersistObject |
| 130 | * |
| 131 | * Base class for classes that will be persistent. This object is the base |
| 132 | * for all Persistent data which is not natively serialized by the |
| 133 | * persistence::engine |
| 134 | * |
| 135 | * It registers itself with the persistence::TypeManager |
| 136 | * using a global constructor function. A matching deregister call |
| 137 | * is made in a global destructor, to allow DLL's to use the |
| 138 | * persistence::engine in a main executable. |
| 139 | * |
| 140 | * Persistable objects must never maintain bad pointers. If a pointer |
| 141 | * doesn't point to something valid, it must be NULL. This is so |
| 142 | * the persistence engine knows whether to allocate memory for an object |
| 143 | * or whether the memory has been pre-allocated. |
| 144 | * |
| 145 | * @author Daniel Silverstone |
| 146 | */ |
| 147 | class __EXPORT PersistObject |
| 148 | { |
| 149 | public: |
| 150 | /** |
| 151 | * This constructor is used in serialization processes. |
| 152 | * It is called in CreateNewInstance in order to create |
| 153 | * an instance of the class to have Read() called on it. |
| 154 | */ |
| 155 | PersistObject(); |
| 156 | |
| 157 | /** |
| 158 | * Default destructor |
| 159 | */ |
| 160 | virtual ~PersistObject(); |
| 161 | |
| 162 | /** |
| 163 | * This returns the ID of the persistent object (Its type) |
| 164 | */ |
| 165 | virtual const char* getPersistenceID() const; |
| 166 | |
| 167 | /** |
| 168 | * This method is used to write to the Persistence::Engine |
| 169 | * It is not equivalent to the << operator as it writes only the data |
| 170 | * and not the object type etc. |
| 171 | */ |
| 172 | virtual bool write(PersistEngine& archive) const; |
| 173 | |
| 174 | /** |
| 175 | * This method is used to read from a Persistence::Engine |
| 176 | * It is not equivalent to the >> operator as it does no |
| 177 | * typesafety or anything. |
| 178 | */ |
| 179 | virtual bool read(PersistEngine& archive); |
| 180 | }; |
| 181 | |
| 182 | /** |
| 183 | * Stream serialization of persistent classes. |
| 184 | * This class constructs on a standard C++ STL stream and then |
| 185 | * operates in the mode specified. The stream passed into the |
| 186 | * constructor must be a binary mode to function properly. |
| 187 | * |
| 188 | * @author Daniel Silverstone |
| 189 | */ |
| 190 | class __EXPORT PersistEngine |
| 191 | { |
| 192 | public: |
| 193 | /** |
| 194 | * These are the modes the Persistence::Engine can work in |
| 195 | */ |
| 196 | enum EngineMode { |
| 197 | modeRead, |
| 198 | modeWrite |
| 199 | }; |
| 200 | |
| 201 | /** |
| 202 | * Constructs a Persistence::Engine with the specified stream in |
| 203 | * the given mode. The stream must be initialized properly prior |
| 204 | * to this call or problems will ensue. |
| 205 | */ |
| 206 | PersistEngine(std::iostream& stream, EngineMode mode) throw(PersistException); |
| 207 | |
| 208 | virtual ~PersistEngine(); |
| 209 | |
| 210 | // Write operations |
| 211 | |
| 212 | /** |
| 213 | * writes a PersistObject from a reference. |
| 214 | */ |
| 215 | inline void write(const PersistObject &object) throw(PersistException) |
| 216 | {write(&object); }; |
| 217 | |
| 218 | /** |
| 219 | * writes a PersistObject from a pointer. |
| 220 | */ |
| 221 | void write(const PersistObject *object) throw(PersistException); |
| 222 | |
| 223 | // writes supported primitive types |
| 224 | // shortcut, to make the following more readable |
| 225 | #define CCXX_ENGINEWRITE_REF(valref) writeBinary((const uint8_t*)&valref,sizeof(valref)) |
| 226 | inline void write(int8_t i) throw(PersistException) { CCXX_ENGINEWRITE_REF(i); } |
| 227 | inline void write(uint8_t i) throw(PersistException) { CCXX_ENGINEWRITE_REF(i); } |
| 228 | inline void write(int16_t i) throw(PersistException) { CCXX_ENGINEWRITE_REF(i); } |
| 229 | inline void write(uint16_t i) throw(PersistException) { CCXX_ENGINEWRITE_REF(i); } |
| 230 | inline void write(int32_t i) throw(PersistException) { CCXX_ENGINEWRITE_REF(i); } |
| 231 | inline void write(uint32_t i) throw(PersistException) { CCXX_ENGINEWRITE_REF(i); } |
| 232 | inline void write(float i) throw(PersistException) { CCXX_ENGINEWRITE_REF(i); } |
| 233 | inline void write(double i) throw(PersistException) { CCXX_ENGINEWRITE_REF(i); } |
| 234 | inline void write(bool i) throw(PersistException) { CCXX_ENGINEWRITE_REF(i); } |
| 235 | #undef CCXX_ENGINEWRITE_REF |
| 236 | |
| 237 | void write(const std::string& str) throw(PersistException); |
| 238 | |
| 239 | // Every write operation boils down to one or more of these |
| 240 | void writeBinary(const uint8_t* data, const uint32_t size) throw(PersistException); |
| 241 | |
| 242 | // Read Operations |
| 243 | |
| 244 | /** |
| 245 | * reads a PersistObject into a reference overwriting the object. |
| 246 | */ |
| 247 | void read(PersistObject &object) throw(PersistException); |
| 248 | |
| 249 | /** |
| 250 | * reads a PersistObject into a pointer allocating memory for the object if necessary. |
| 251 | */ |
| 252 | void read(PersistObject *&object) throw(PersistException); |
| 253 | |
| 254 | // reads supported primitive types |
| 255 | // shortcut, to make the following more readable |
| 256 | #define CCXX_ENGINEREAD_REF(valref) readBinary((uint8_t*)&valref,sizeof(valref)) |
| 257 | inline void read(int8_t& i) throw(PersistException) { CCXX_ENGINEREAD_REF(i); } |
| 258 | inline void read(uint8_t& i) throw(PersistException) { CCXX_ENGINEREAD_REF(i); } |
| 259 | inline void read(int16_t& i) throw(PersistException) { CCXX_ENGINEREAD_REF(i); } |
| 260 | inline void read(uint16_t& i) throw(PersistException) { CCXX_ENGINEREAD_REF(i); } |
| 261 | inline void read(int32_t& i) throw(PersistException) { CCXX_ENGINEREAD_REF(i); } |
| 262 | inline void read(uint32_t& i) throw(PersistException) { CCXX_ENGINEREAD_REF(i); } |
| 263 | inline void read(float& i) throw(PersistException) { CCXX_ENGINEREAD_REF(i); } |
| 264 | inline void read(double& i) throw(PersistException) { CCXX_ENGINEREAD_REF(i); } |
| 265 | inline void read(bool &i) throw(PersistException) { CCXX_ENGINEREAD_REF(i); } |
| 266 | #undef CCXX_ENGINEREAD_REF |
| 267 | |
| 268 | void read(std::string& str) throw(PersistException); |
| 269 | |
| 270 | // Every read operation boiled down to one or more of these |
| 271 | void readBinary(uint8_t* data, uint32_t size) throw(PersistException); |
| 272 | |
| 273 | private: |
| 274 | /** |
| 275 | * reads the actual object data into a pre-instantiated object pointer |
| 276 | * by calling the read function of the derived class. |
| 277 | */ |
| 278 | void readObject(PersistObject* object) throw(PersistException); |
| 279 | |
| 280 | /** |
| 281 | * reads in a class name, and caches it into the ClassMap. |
| 282 | */ |
| 283 | const std::string readClass() throw(PersistException); |
| 284 | |
| 285 | |
| 286 | /** |
| 287 | * The underlying stream |
| 288 | */ |
| 289 | std::iostream& myUnderlyingStream; |
| 290 | |
| 291 | /** |
| 292 | * The mode of the engine. read or write |
| 293 | */ |
| 294 | EngineMode myOperationalMode; |
| 295 | |
| 296 | /** |
| 297 | * Typedefs for the Persistence::PersistObject support |
| 298 | */ |
| 299 | typedef std::vector<PersistObject*> ArchiveVector; |
| 300 | typedef std::map<PersistObject const*, int32_t> ArchiveMap; |
| 301 | typedef std::vector<std::string> ClassVector; |
| 302 | typedef std::map<std::string, int32_t> ClassMap; |
| 303 | |
| 304 | ArchiveVector myArchiveVector; |
| 305 | ArchiveMap myArchiveMap; |
| 306 | ClassVector myClassVector; |
| 307 | ClassMap myClassMap; |
| 308 | }; |
| 309 | |
| 310 | #define CCXX_RE(ar,ob) ar.read(ob); return ar |
| 311 | #define CCXX_WE(ar,ob) ar.write(ob); return ar |
| 312 | |
| 313 | // Standard >> and << stream operators for PersistObject |
| 314 | /** @relates PersistEngine */ |
| 315 | inline PersistEngine& operator >>( PersistEngine& ar, PersistObject &ob) throw(PersistException) {CCXX_RE(ar,ob);} |
| 316 | /** @relates PersistEngine */ |
| 317 | inline PersistEngine& operator >>( PersistEngine& ar, PersistObject *&ob) throw(PersistException) {CCXX_RE(ar,ob);} |
| 318 | /** @relates PersistEngine */ |
| 319 | inline PersistEngine& operator <<( PersistEngine& ar, PersistObject const &ob) throw(PersistException) {CCXX_WE(ar,ob);} |
| 320 | /** @relates PersistEngine */ |
| 321 | inline PersistEngine& operator <<( PersistEngine& ar, PersistObject const *ob) throw(PersistException) {CCXX_WE(ar,ob);} |
| 322 | |
| 323 | /** @relates PersistEngine */ |
| 324 | inline PersistEngine& operator >>( PersistEngine& ar, int8_t& ob) throw(PersistException) {CCXX_RE(ar,ob);} |
| 325 | /** @relates PersistEngine */ |
| 326 | inline PersistEngine& operator <<( PersistEngine& ar, int8_t ob) throw(PersistException) {CCXX_WE(ar,ob);} |
| 327 | |
| 328 | /** @relates PersistEngine */ |
| 329 | inline PersistEngine& operator >>( PersistEngine& ar, uint8_t& ob) throw(PersistException) {CCXX_RE(ar,ob);} |
| 330 | /** @relates PersistEngine */ |
| 331 | inline PersistEngine& operator <<( PersistEngine& ar, uint8_t ob) throw(PersistException) {CCXX_WE(ar,ob);} |
| 332 | |
| 333 | /** @relates PersistEngine */ |
| 334 | inline PersistEngine& operator >>( PersistEngine& ar, int16_t& ob) throw(PersistException) {CCXX_RE(ar,ob);} |
| 335 | /** @relates PersistEngine */ |
| 336 | inline PersistEngine& operator <<( PersistEngine& ar, int16_t ob) throw(PersistException) {CCXX_WE(ar,ob);} |
| 337 | |
| 338 | /** @relates PersistEngine */ |
| 339 | inline PersistEngine& operator >>( PersistEngine& ar, uint16_t& ob) throw(PersistException) {CCXX_RE(ar,ob);} |
| 340 | /** @relates PersistEngine */ |
| 341 | inline PersistEngine& operator <<( PersistEngine& ar, uint16_t ob) throw(PersistException) {CCXX_WE(ar,ob);} |
| 342 | |
| 343 | /** @relates PersistEngine */ |
| 344 | inline PersistEngine& operator >>( PersistEngine& ar, int32_t& ob) throw(PersistException) {CCXX_RE(ar,ob);} |
| 345 | /** @relates PersistEngine */ |
| 346 | inline PersistEngine& operator <<( PersistEngine& ar, int32_t ob) throw(PersistException) {CCXX_WE(ar,ob);} |
| 347 | |
| 348 | /** @relates PersistEngine */ |
| 349 | inline PersistEngine& operator >>( PersistEngine& ar, uint32_t& ob) throw(PersistException) {CCXX_RE(ar,ob);} |
| 350 | /** @relates PersistEngine */ |
| 351 | inline PersistEngine& operator <<( PersistEngine& ar, uint32_t ob) throw(PersistException) {CCXX_WE(ar,ob);} |
| 352 | |
| 353 | /** @relates PersistEngine */ |
| 354 | inline PersistEngine& operator >>( PersistEngine& ar, float& ob) throw(PersistException) {CCXX_RE(ar,ob);} |
| 355 | /** @relates PersistEngine */ |
| 356 | inline PersistEngine& operator <<( PersistEngine& ar, float ob) throw(PersistException) {CCXX_WE(ar,ob);} |
| 357 | |
| 358 | /** @relates PersistEngine */ |
| 359 | inline PersistEngine& operator >>( PersistEngine& ar, double& ob) throw(PersistException) {CCXX_RE(ar,ob);} |
| 360 | /** @relates PersistEngine */ |
| 361 | inline PersistEngine& operator <<( PersistEngine& ar, double ob) throw(PersistException) {CCXX_WE(ar,ob);} |
| 362 | |
| 363 | /** @relates PersistEngine */ |
| 364 | inline PersistEngine& operator >>( PersistEngine& ar, std::string& ob) throw(PersistException) {CCXX_RE(ar,ob);} |
| 365 | /** @relates PersistEngine */ |
| 366 | inline PersistEngine& operator <<( PersistEngine& ar, std::string ob) throw(PersistException) {CCXX_WE(ar,ob);} |
| 367 | |
| 368 | /** @relates PersistEngine */ |
| 369 | inline PersistEngine& operator >>( PersistEngine& ar, bool& ob) throw(PersistException) {CCXX_RE(ar,ob);} |
| 370 | /** @relates PersistEngine */ |
| 371 | inline PersistEngine& operator <<( PersistEngine& ar, bool ob) throw(PersistException) {CCXX_WE(ar,ob);} |
| 372 | |
| 373 | #undef CCXX_RE |
| 374 | #undef CCXX_WE |
| 375 | |
| 376 | /** |
| 377 | * The following are template classes |
| 378 | */ |
| 379 | |
| 380 | /** |
| 381 | * @relates PersistEngine |
| 382 | * serialize a vector of some serializable content to |
| 383 | * the engine |
| 384 | */ |
| 385 | template<class T> |
| 386 | PersistEngine& operator <<( PersistEngine& ar, typename std::vector<T> const& ob) throw(PersistException) |
| 387 | { |
| 388 | ar << (uint32_t)ob.size(); |
| 389 | for(unsigned int i=0; i < ob.size(); ++i) |
| 390 | ar << ob[i]; |
| 391 | return ar; |
| 392 | } |
| 393 | |
| 394 | /** |
| 395 | * @relates PersistEngine |
| 396 | * deserialize a vector of deserializable content from |
| 397 | * an engine. |
| 398 | */ |
| 399 | template<class T> |
| 400 | PersistEngine& operator >>( PersistEngine& ar, typename std::vector<T>& ob) throw(PersistException) |
| 401 | { |
| 402 | ob.clear(); |
| 403 | uint32_t siz; |
| 404 | ar >> siz; |
| 405 | ob.resize(siz); |
| 406 | for(uint32_t i=0; i < siz; ++i) |
| 407 | ar >> ob[i]; |
| 408 | return ar; |
| 409 | } |
| 410 | |
| 411 | /** |
| 412 | * @relates PersistEngine |
| 413 | * serialize a deque of some serializable content to |
| 414 | * the engine |
| 415 | */ |
| 416 | template<class T> |
| 417 | PersistEngine& operator <<( PersistEngine& ar, typename std::deque<T> const& ob) throw(PersistException) |
| 418 | { |
| 419 | ar << (uint32_t)ob.size(); |
| 420 | for(typename std::deque<T>::const_iterator it=ob.begin(); it != ob.end(); ++it) |
| 421 | ar << *it; |
| 422 | return ar; |
| 423 | } |
| 424 | |
| 425 | /** |
| 426 | * @relates PersistEngine |
| 427 | * deserialize a deque of deserializable content from |
| 428 | * an engine. |
| 429 | */ |
| 430 | template<class T> |
| 431 | PersistEngine& operator >>( PersistEngine& ar, typename std::deque<T>& ob) throw(PersistException) |
| 432 | { |
| 433 | ob.clear(); |
| 434 | uint32_t siz; |
| 435 | ar >> siz; |
| 436 | //ob.resize(siz); |
| 437 | for(uint32_t i=0; i < siz; ++i) { |
| 438 | T node; |
| 439 | ar >> node; |
| 440 | ob.push_back(node); |
| 441 | //ar >> ob[i]; |
| 442 | } |
| 443 | return ar; |
| 444 | } |
| 445 | |
| 446 | /** |
| 447 | * @relates PersistEngine |
| 448 | * serialize a map with keys/values which both are serializeable |
| 449 | * to an engine. |
| 450 | */ |
| 451 | template<class Key, class Value> |
| 452 | PersistEngine& operator <<( PersistEngine& ar, typename std::map<Key,Value> const & ob) throw(PersistException) |
| 453 | { |
| 454 | ar << (uint32_t)ob.size(); |
| 455 | for(typename std::map<Key,Value>::const_iterator it = ob.begin();it != ob.end();++it) |
| 456 | ar << it->first << it->second; |
| 457 | return ar; |
| 458 | } |
| 459 | |
| 460 | /** |
| 461 | * @relates PersistEngine |
| 462 | * deserialize a map with keys/values which both are serializeable |
| 463 | * from an engine. |
| 464 | */ |
| 465 | template<class Key, class Value> |
| 466 | PersistEngine& operator >>( PersistEngine& ar, typename std::map<Key,Value>& ob) throw(PersistException) |
| 467 | { |
| 468 | ob.clear(); |
| 469 | uint32_t siz; |
| 470 | ar >> siz; |
| 471 | for(uint32_t i=0; i < siz; ++i) { |
| 472 | Key a; |
| 473 | ar >> a; |
| 474 | ar >> ob[a]; |
| 475 | } |
| 476 | return ar; |
| 477 | } |
| 478 | |
| 479 | /** |
| 480 | * @relates PersistEngine |
| 481 | * serialize a pair of some serializable content to the engine. |
| 482 | */ |
| 483 | template<class x, class y> |
| 484 | PersistEngine& operator <<( PersistEngine& ar, std::pair<x,y> &ob) throw(PersistException) |
| 485 | { |
| 486 | ar << ob.first << ob.second; |
| 487 | return ar; |
| 488 | } |
| 489 | |
| 490 | /** |
| 491 | * @relates PersistEngine |
| 492 | * deserialize a pair of some serializable content to the engine. |
| 493 | */ |
| 494 | template<class x, class y> |
| 495 | PersistEngine& operator >>(PersistEngine& ar, std::pair<x, y> &ob) throw(PersistException) |
| 496 | { |
| 497 | ar >> ob.first >> ob.second; |
| 498 | return ar; |
| 499 | } |
| 500 | |
| 501 | END_NAMESPACE |
| 502 | |
| 503 | #endif |
| 504 | #endif |
| 505 | #endif |