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//
// ExactWordQuery.cc
//
// ExactWordQuery: A Query tree leaf object. Wraps a database access
// that generates ResultLists for word matches.
//
// Part of the ht://Dig package <http://www.htdig.org/>
// Copyright (c) 1995-2004 The ht://Dig Group
// For copyright details, see the file COPYING in your distribution
// or the GNU Library General Public License (LGPL) version 2 or later
// <http://www.gnu.org/copyleft/lgpl.html>
//
// $Id: ExactWordQuery.cc,v 1.4 2004/05/28 13:15:24 lha Exp $
//
#include "ExactWordQuery.h"
#include "WordSearcher.h"
//
// the searcher object used by all instances
// of ExactWord
//
WordSearcher *
ExactWordQuery::searcher = 0;
//
// set the weight of the matches to my weight
//
void
ExactWordQuery::AdjustWeight(ResultList &results)
{
results.SetWeight(weight);
}
//
// tell the searcher to fetch my word in the database
// return 0 if no matches
//
ResultList *
ExactWordQuery::Evaluate()
{
ResultList *result = 0;
if(searcher)
{
result = searcher->Search(word);
}
if(result && !result->Count() && !result->IsIgnore())
{
delete result;
result = 0;
}
return result;
}
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