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// fts_index_format.h
/**
* Copyright (C) 2012 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "mongo/db/fts/fts_spec.h"
namespace mongo {
namespace fts {
class FTSIndexFormat {
public:
static void getKeys( const FTSSpec& spec,
const BSONObj& document,
BSONObjSet* keys );
/*
* Helper method to get return entry from the FTSIndex as a BSONObj
* @param weight, the weight of the term in the entry
* @param term, the string term in the entry
* @param indexPrefix, the fields that go in the index first
*/
static BSONObj getIndexKey( double weight,
const string& term,
const BSONObj& indexPrefix );
private:
/*
* Helper method to get return entry from the FTSIndex as a BSONObj
* @param b, reference to the BSONOBjBuilder
* @param weight, the weight of the term in the entry
* @param term, the string term in the entry
*/
static void _appendIndexKey( BSONObjBuilder& b, double weight, const string& term );
};
}
}
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