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/** @file
* @brief Xapian::BoolWeight class - boolean weighting
*/
/* Copyright (C) 2009,2011,2016 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, see
* <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "xapian/weight.h"
#include "xapian/error.h"
using namespace std;
namespace Xapian {
BoolWeight *
BoolWeight::clone() const
{
return new BoolWeight;
}
void
BoolWeight::init(double)
{
// Nothing to do here.
}
string
BoolWeight::name() const
{
return "bool";
}
string
BoolWeight::serialise() const
{
// No parameters to serialise.
return string();
}
BoolWeight *
BoolWeight::unserialise(const string& s) const
{
if (rare(!s.empty()))
throw Xapian::SerialisationError("Extra data in BoolWeight::unserialise()");
return new BoolWeight;
}
double
BoolWeight::get_sumpart(Xapian::termcount, Xapian::termcount,
Xapian::termcount, Xapian::termcount) const
{
return 0;
}
double
BoolWeight::get_maxpart() const
{
return 0;
}
BoolWeight *
BoolWeight::create_from_parameters(const char * p) const
{
if (*p != '\0')
throw InvalidArgumentError("No parameters are required for BoolWeight");
return new Xapian::BoolWeight();
}
}
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