chert_termlisttable.h

Go to the documentation of this file.

/* Copyright (C) 2007,2008,2009 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_CHERT_TERMLISTTABLE_H
#define XAPIAN_INCLUDED_CHERT_TERMLISTTABLE_H

#include <xapian/types.h>

#include "chert_lazytable.h"
#include "pack.h"

#include <string>

namespace Xapian {
class Document;
}

class ChertTermListTable : public ChertLazyTable {
  public:
    static std::string make_key(Xapian::docid did) {
        std::string key;
        C_pack_uint_preserving_sort(key, did);
        return key;
    }

    ChertTermListTable(const std::string & dbdir, bool readonly)
        : ChertLazyTable("termlist", dbdir + "/termlist.", readonly,
                         Z_DEFAULT_STRATEGY) { }

    void set_termlist(Xapian::docid did, const Xapian::Document & doc,
                      chert_doclen_t doclen);

    void delete_termlist(Xapian::docid did) { del(make_key(did)); }

    void create_and_open(unsigned int blocksize) {
        ChertTable::create_and_open(blocksize);
    }
};

#endif // XAPIAN_INCLUDED_CHERT_TERMLISTTABLE_H