contiguousalldocspostlist.h

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/* Copyright (C) 2007,2008,2009,2011,2017 Olly Betts
 * Copyright (C) 2009 Lemur Consulting Ltd
 *
 * 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/>.
 */
 
#ifndef XAPIAN_INCLUDED_CONTIGUOUSALLDOCSPOSTLIST_H
#define XAPIAN_INCLUDED_CONTIGUOUSALLDOCSPOSTLIST_H
 
#include <string>
 
#include "leafpostlist.h"
 
class ContiguousAllDocsPostList : public LeafPostList {
    void operator=(const ContiguousAllDocsPostList &);
 
    ContiguousAllDocsPostList(const ContiguousAllDocsPostList &);
 
    Xapian::docid did = 0;
 
  public:
    explicit
    ContiguousAllDocsPostList(Xapian::doccount doccount)
        : LeafPostList({}) {
        /* For an all documents postlist the term frequency is the number of
         * documents in the database.
         */
        termfreq = doccount;
        collfreq = doccount;
    }
 
    Xapian::docid get_docid() const;
 
    Xapian::termcount get_wdf() const;
 
    PositionList *read_position_list();
 
    PositionList * open_position_list() const;
 
    PostList * next(double w_min);
 
    PostList * skip_to(Xapian::docid target, double w_min);
 
    bool at_end() const;
 
    Xapian::termcount get_wdf_upper_bound() const;
 
    std::string get_description() const;
};
 
#endif // XAPIAN_INCLUDED_CONTIGUOUSALLDOCSPOSTLIST_H