xapian-core  1.4.19
valuestats.h
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1 
4 /* Copyright 2008 Lemur Consulting Ltd
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License as
8  * published by the Free Software Foundation; either version 2 of the
9  * License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
19  * USA
20  */
21 
22 #ifndef XAPIAN_INCLUDED_VALUESTATS_H
23 #define XAPIAN_INCLUDED_VALUESTATS_H
24 
25 #include <string>
26 #include "xapian/types.h"
27 
29 struct ValueStats {
34 
37  std::string lower_bound;
38 
41  std::string upper_bound;
42 
44  ValueStats() : freq(0), lower_bound(), upper_bound() {}
45 
48  void clear() {
49  freq = 0;
50  lower_bound.resize(0);
51  upper_bound.resize(0);
52  }
53 };
54 
55 #endif /* XAPIAN_INCLUDED_VALUESTATS_H */
Class to hold statistics for a given slot.
Definition: valuestats.h:29
typedefs for Xapian
std::string upper_bound
An upper bound on the values stored in the given value slot.
Definition: valuestats.h:41
Xapian::doccount freq
The number of documents which have a (non-empty) value stored in the slot.
Definition: valuestats.h:33
std::string lower_bound
A lower bound on the values stored in the given value slot.
Definition: valuestats.h:37
ValueStats()
Construct an empty ValueStats object.
Definition: valuestats.h:44
unsigned XAPIAN_DOCID_BASE_TYPE doccount
A count of documents.
Definition: types.h:38
void clear()
Clear the statistics.
Definition: valuestats.h:48