matcher/msetpostlist.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_MSETPOSTLIST_H
#define XAPIAN_INCLUDED_MSETPOSTLIST_H

#include <xapian/enquire.h>

#include "omenquireinternal.h"
#include "postlist.h"

class MSetPostList : public PostList {
    void operator=(const MSetPostList &);

    MSetPostList(const MSetPostList &);

    int cursor;

    Xapian::Internal::RefCntPtr<Xapian::MSet::Internal> mset_internal;

    bool decreasing_relevance;

  public:
    MSetPostList(const Xapian::MSet mset, bool decreasing_relevance_)
        : cursor(-1), mset_internal(mset.internal),
          decreasing_relevance(decreasing_relevance_) { }

    Xapian::doccount get_termfreq_min() const;

    Xapian::doccount get_termfreq_est() const;

    Xapian::doccount get_termfreq_max() const;

    Xapian::weight get_maxweight() const;

    Xapian::docid get_docid() const;

    Xapian::weight get_weight() const;

    const string * get_collapse_key() const;

    Xapian::doclength get_doclength() const;

    Xapian::weight recalc_maxweight();

    PostList *next(Xapian::weight w_min);

    PostList *skip_to(Xapian::docid did, Xapian::weight w_min);

    bool at_end() const;

    string get_description() const;
};

#endif /* XAPIAN_INCLUDED_MSETPOSTLIST_H */

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