databasereplicator.h

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/* Copyright (C) 2008 Lemur Consulting Ltd
 * Copyright (C) 2009,2010 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_DATABASEREPLICATOR_H
#define XAPIAN_INCLUDED_DATABASEREPLICATOR_H

#include <string>

#include "xapian/types.h"

class RemoteConnection;

namespace Xapian {

class DatabaseReplicator {
    DatabaseReplicator(const DatabaseReplicator &);

    void operator=(const DatabaseReplicator &);

  protected:
    DatabaseReplicator() { }

  public:
    virtual ~DatabaseReplicator();

    static DatabaseReplicator * open(const std::string & path);

    virtual bool check_revision_at_least(const std::string & rev,
                                         const std::string & target) const = 0;

    virtual std::string apply_changeset_from_conn(RemoteConnection & conn,
                                                  double end_time,
                                                  bool db_valid) const = 0;

    virtual std::string get_uuid() const = 0;
};

}

#endif /* XAPIAN_INCLUDED_DATABASEREPLICATOR_H */