00001
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015
00016
00017
00018
00019
00020
00021
00022
00023
00024
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
00363 WritableDatabase(const std::string &path, int action);
00364
00367 explicit WritableDatabase(Database::Internal *internal);
00368
00372 WritableDatabase(const WritableDatabase &other);
00373
00381 void operator=(const WritableDatabase &other);
00382
00423 void flush();
00424
00464 void begin_transaction(bool flushed=true);
00465
00491 void commit_transaction();
00492
00511 void cancel_transaction();
00512
00541 Xapian::docid add_document(const Xapian::Document & document);
00542
00564 void delete_document(Xapian::docid did);
00565
00585 void delete_document(const std::string & unique_term);
00586
00618 void replace_document(Xapian::docid did,
00619 const Xapian::Document & document);
00620
00654 Xapian::docid replace_document(const std::string & unique_term,
00655 const Xapian::Document & document);
00656
00664 void add_spelling(const std::string & word,
00665 Xapian::termcount freqinc = 1) const;
00666
00675 void remove_spelling(const std::string & word,
00676 Xapian::termcount freqdec = 1) const;
00677
00683 void add_synonym(const std::string & term,
00684 const std::string & synonym) const;
00685
00690 void remove_synonym(const std::string & term,
00691 const std::string & synonym) const;
00692
00697 void clear_synonyms(const std::string & term) const;
00698
00739 void set_metadata(const std::string & key, const std::string & value);
00740
00742 std::string get_description() const;
00743 };
00744
00746 const int DB_CREATE_OR_OPEN = 1;
00748 const int DB_CREATE = 2;
00750 const int DB_CREATE_OR_OVERWRITE = 3;
00752 const int DB_OPEN = 4;
00753
00754
00755
00756 }
00757
00758 #endif