xapian-core/weight/boolweight.cc

   1 /** @file boolweight.cc
   2  * @brief Xapian::BoolWeight class - boolean weighting
   3  */
   4 /* Copyright (C) 2009,2011 Olly Betts
   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 USA
  19  */
  20
  21 #include <config.h>
  22
  23 #include "xapian/weight.h"
  24
  25 using namespace std;
  26
  27 namespace Xapian {
  28
  29 BoolWeight *
  30 BoolWeight::clone() const
  31 {
  32     return new BoolWeight;
  33 }
  34
  35 void
  36 BoolWeight::init(double)
  37 {
  38     // Nothing to do here.
  39 }
  40
  41 string
  42 BoolWeight::name() const
  43 {
  44     return "Xapian::BoolWeight";
  45 }
  46
  47 string
  48 BoolWeight::serialise() const
  49 {
  50     // No parameters to serialise.
  51     return string();
  52 }
  53
  54 BoolWeight *
  55 BoolWeight::unserialise(const string &) const
  56 {
  57     return new BoolWeight;
  58 }
  59
  60 double
  61 BoolWeight::get_sumpart(Xapian::termcount, Xapian::termcount,
  62                         Xapian::termcount) const
  63 {
  64     return 0;
  65 }
  66
  67 double
  68 BoolWeight::get_maxpart() const
  69 {
  70     return 0;
  71 }
  72
  73 double
  74 BoolWeight::get_sumextra(Xapian::termcount, Xapian::termcount) const
  75 {
  76     return 0;
  77 }
  78
  79 double
  80 BoolWeight::get_maxextra() const
  81 {
  82     return 0;
  83 }
  84
  85 }