honey_alltermslist.h

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/* Copyright (C) 2005,2007,2008,2009,2010,2011,2017,2024 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, see
 * <https://www.gnu.org/licenses/>.
 */
 
#ifndef XAPIAN_INCLUDED_HONEY_ALLTERMSLIST_H
#define XAPIAN_INCLUDED_HONEY_ALLTERMSLIST_H
 
#include "backends/alltermslist.h"
#include "honey_database.h"
#include "honey_postlist.h"
 
#include <string_view>
 
class HoneyCursor;
 
class HoneyAllTermsList : public AllTermsList {
    HoneyAllTermsList(const HoneyAllTermsList&) = delete;
 
    HoneyAllTermsList& operator=(const HoneyAllTermsList&) = delete;
 
    Xapian::Internal::intrusive_ptr<const HoneyDatabase> database;
 
    HoneyCursor* cursor = NULL;
 
    std::string prefix;
 
    mutable Xapian::doccount termfreq = 0;
 
    void read_termfreq() const;
 
  public:
    HoneyAllTermsList(const HoneyDatabase* database_,
                      std::string_view prefix_)
        : database(database_), prefix(prefix_) {}
 
    ~HoneyAllTermsList();
 
    Xapian::termcount get_approx_size() const;
 
    Xapian::doccount get_termfreq() const;
 
    TermList* next();
 
    TermList* skip_to(std::string_view term);
};
 
#endif /* XAPIAN_INCLUDED_HONEY_ALLTERMSLIST_H */