00001 /* inmemory_positionlist.h 00002 * 00003 * Copyright 1999,2000,2001 BrightStation PLC 00004 * Copyright 2003,2008,2009 Olly Betts 00005 * 00006 * This program is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU General Public License as 00008 * published by the Free Software Foundation; either version 2 of the 00009 * License, or (at your option) any later version. 00010 * 00011 * This program is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License 00017 * along with this program; if not, write to the Free Software 00018 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 00019 * USA 00020 */ 00021 00022 #ifndef OM_HGUARD_INMEMORY_POSITIONLIST_H 00023 #define OM_HGUARD_INMEMORY_POSITIONLIST_H 00024 00025 #include <xapian/types.h> 00026 #include <xapian/error.h> 00027 00028 #include <vector> 00029 #include "positionlist.h" 00030 #include "documentterm.h" 00031 00032 using namespace std; 00033 00035 class InMemoryPositionList : public PositionList 00036 { 00037 private: 00039 vector<Xapian::termpos> positions; 00040 00042 vector<Xapian::termpos>::const_iterator mypos; 00043 00045 bool iterating_in_progress; 00046 00048 InMemoryPositionList(const InMemoryPositionList &); 00049 00051 void operator=(const InMemoryPositionList &); 00052 00053 public: 00055 InMemoryPositionList() : iterating_in_progress(false) { } 00056 00058 InMemoryPositionList(bool) 00059 : mypos(positions.begin()), iterating_in_progress(false) { } 00060 00062 InMemoryPositionList(const OmDocumentTerm::term_positions & positions_); 00063 00065 void set_data(const OmDocumentTerm::term_positions & positions_); 00066 00068 Xapian::termcount get_size() const; 00069 00071 Xapian::termpos get_position() const; 00072 00077 void next(); 00078 00083 void skip_to(Xapian::termpos termpos); 00084 00086 bool at_end() const; 00087 }; 00088 00089 #endif /* OM_HGUARD_INMEMORY_POSITIONLIST_H */