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00025 #ifndef XAPIAN_INCLUDED_DATABASE_H
00026 #define XAPIAN_INCLUDED_DATABASE_H
00027
00028 #include <string>
00029 #include <vector>
00030
00031 #include <xapian/base.h>
00032 #include <xapian/types.h>
00033 #include <xapian/positioniterator.h>
00034 #include <xapian/postingiterator.h>
00035 #include <xapian/termiterator.h>
00036 #include <xapian/visibility.h>
00037
00039 namespace Xapian {
00040
00041 class Document;
00042
00057 class XAPIAN_VISIBILITY_DEFAULT Database {
00058 public:
00059 class Internal;
00061 std::vector<Xapian::Internal::RefCntPtr<Internal> > internal;
00062
00068 void add_database(const Database & database);
00069
00072 Database();
00073
00079 explicit Database(const std::string &path);
00080
00083 explicit Database(Internal *internal);
00084
00090 virtual ~Database();
00091
00095 Database(const Database &other);
00096
00100 void operator=(const Database &other);
00101
00107 void reopen();
00108
00110 virtual std::string get_description() const;
00111
00120 PostingIterator postlist_begin(const std::string &tname) const;
00121
00124 PostingIterator postlist_end(const std::string &) const {
00125 return PostingIterator(NULL);
00126 }
00127
00131 TermIterator termlist_begin(Xapian::docid did) const;
00132
00135 TermIterator termlist_end(Xapian::docid) const {
00136 return TermIterator(NULL);
00137 }
00138
00140 bool has_positions() const;
00141
00145 PositionIterator positionlist_begin(Xapian::docid did, const std::string &tname) const;
00146
00149 PositionIterator positionlist_end(Xapian::docid, const std::string &) const {
00150 return PositionIterator(NULL);
00151 }
00152
00155 TermIterator allterms_begin() const;
00156
00159 TermIterator allterms_end() const {
00160 return TermIterator(NULL);
00161 }
00162
00174 TermIterator allterms_begin(const std::string & prefix) const;
00175
00178 TermIterator allterms_end(const std::string &) const {
00179 return TermIterator(NULL);
00180 }
00181
00183 Xapian::doccount get_doccount() const;
00184
00186 Xapian::docid get_lastdocid() const;
00187
00189 Xapian::doclength get_avlength() const;
00190
00192 Xapian::doccount get_termfreq(const std::string & tname) const;
00193
00200 bool term_exists(const std::string & tname) const;
00201
00211 Xapian::termcount get_collection_freq(const std::string & tname) const;
00212
00215 Xapian::doclength get_doclength(Xapian::docid did) const;
00216
00220 void keep_alive();
00221
00234 Xapian::Document get_document(Xapian::docid did) const;
00235
00244 std::string get_spelling_suggestion(const std::string &word,
00245 unsigned max_edit_distance = 2) const;
00246
00254 Xapian::TermIterator spellings_begin() const;
00255
00257 Xapian::TermIterator spellings_end() const {
00258 return Xapian::TermIterator(NULL);
00259 }
00260
00265 Xapian::TermIterator synonyms_begin(const std::string &term) const;
00266
00268 Xapian::TermIterator synonyms_end(const std::string &) const {
00269 return Xapian::TermIterator(NULL);
00270 }
00271
00277 Xapian::TermIterator synonym_keys_begin(const std::string &prefix = "") const;
00278
00280 Xapian::TermIterator synonym_keys_end(const std::string & = "") const {
00281 return Xapian::TermIterator(NULL);
00282 }
00283
00312 std::string get_metadata(const std::string & key) const;
00313
00323 Xapian::TermIterator metadata_keys_begin(const std::string &prefix = "") const;
00324
00326 Xapian::TermIterator metadata_keys_end(const std::string & = "") const {
00327 return Xapian::TermIterator(NULL);
00328 }
00329 };
00330
00333 class XAPIAN_VISIBILITY_DEFAULT WritableDatabase : public Database {
00334 public:
00341 virtual ~WritableDatabase();
00342
00345 WritableDatabase();
00346
00369 WritableDatabase(const std::string &path, int action);
00370
00373 explicit WritableDatabase(Database::Internal *internal);
00374
00378 WritableDatabase(const WritableDatabase &other);
00379
00387 void operator=(const WritableDatabase &other);
00388
00426 void flush();
00427
00467 void begin_transaction(bool flushed=true);
00468
00494 void commit_transaction();
00495
00514 void cancel_transaction();
00515
00544 Xapian::docid add_document(const Xapian::Document & document);
00545
00567 void delete_document(Xapian::docid did);
00568
00588 void delete_document(const std::string & unique_term);
00589
00621 void replace_document(Xapian::docid did,
00622 const Xapian::Document & document);
00623
00657 Xapian::docid replace_document(const std::string & unique_term,
00658 const Xapian::Document & document);
00659
00667 void add_spelling(const std::string & word,
00668 Xapian::termcount freqinc = 1) const;
00669
00678 void remove_spelling(const std::string & word,
00679 Xapian::termcount freqdec = 1) const;
00680
00686 void add_synonym(const std::string & term,
00687 const std::string & synonym) const;
00688
00693 void remove_synonym(const std::string & term,
00694 const std::string & synonym) const;
00695
00700 void clear_synonyms(const std::string & term) const;
00701
00742 void set_metadata(const std::string & key, const std::string & value);
00743
00745 std::string get_description() const;
00746 };
00747
00749 const int DB_CREATE_OR_OPEN = 1;
00751 const int DB_CREATE = 2;
00753 const int DB_CREATE_OR_OVERWRITE = 3;
00755 const int DB_OPEN = 4;
00756
00757
00758
00759 }
00760
00761 #endif