1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
/** @file multi_termlist.h
* @brief C++ class declaration for multiple database access
*/
/* Copyright 1999,2000,2001 BrightStation PLC
* Copyright 2002,2003,2004,2005,2006,2007,2010,2011 Olly Betts
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#ifndef OM_HGUARD_MULTI_TERMLIST_H
#define OM_HGUARD_MULTI_TERMLIST_H
#include "api/termlist.h"
#include "backends/database.h"
class MultiTermList : public TermList {
friend class Xapian::Database;
private:
TermList *tl;
const Xapian::Database & db;
size_t db_index;
double termfreq_factor;
MultiTermList(TermList * tl_,
const Xapian::Database &db_,
size_t db_index_);
public:
Xapian::termcount get_approx_size() const;
/// Collate weighting information for the current term.
void accumulate_stats(Xapian::Internal::ExpandStats & stats) const;
string get_termname() const;
Xapian::termcount get_wdf() const; // Number of occurrences of term in current doc
Xapian::doccount get_termfreq() const; // Number of docs indexed by term
TermList * next();
TermList * skip_to(const std::string & term);
bool at_end() const;
Xapian::termcount positionlist_count() const;
Xapian::PositionIterator positionlist_begin() const;
~MultiTermList();
};
#endif /* OM_HGUARD_MULTI_TERMLIST_H */
|
