matcher/localmatch.h

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/* Copyright (C) 2006,2007 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, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#ifndef XAPIAN_INCLUDED_LOCALMATCH_H
#define XAPIAN_INCLUDED_LOCALMATCH_H

#include "database.h"
#include "omqueryinternal.h"
#include "rset.h"
#include "submatch.h"

namespace Xapian { class Weight; }

#include <map>
#include <vector>

class Stats;

class LocalSubMatch : public SubMatch {
    void operator=(const LocalSubMatch &);

    LocalSubMatch(const LocalSubMatch &);

    const Stats * stats;

    Xapian::Query::Internal orig_query;

    Xapian::termcount qlen;

    const Xapian::Database::Internal *db;

    RSetI rset;

    const Xapian::Weight * wt_factory;

    std::map<string, Xapian::MSet::Internal::TermFreqAndWeight> term_info;

  public:
    LocalSubMatch(const Xapian::Database::Internal *db,
                  const Xapian::Query::Internal * query,
                  Xapian::termcount qlen,
                  const Xapian::RSet & omrset,
                  const Xapian::Weight *wt_factory);

    bool prepare_match(bool nowait, Stats & total_stats);

    void start_match(Xapian::doccount first,
                     Xapian::doccount maxitems,
                     Xapian::doccount check_at_least,
                     const Stats & total_stats);

    PostList * get_postlist_and_term_info(MultiMatch *matcher,
        std::map<string, Xapian::MSet::Internal::TermFreqAndWeight> *termfreqandwts);

    PostList * postlist_from_op_leaf_query(const Xapian::Query::Internal *query,
                                           double factor);
};

#endif /* XAPIAN_INCLUDED_LOCALMATCH_H */

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