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/*
-*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
* Definitions required for Configuration Variables plugin
* Copyright (C) 2008 Mark Atwood
*
* 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; version 2 of the License.
*
* 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 DRIZZLED_PLUGIN_REPLICATOR_H
#define DRIZZLED_PLUGIN_REPLICATOR_H
/**
* @file
*
* Defines the API for Replication
*/
/**
* Base class for replication implementations.
*
* if a method returns bool true, that means it failed.
*/
class Replicator
{
private:
bool enabled;
protected:
virtual bool session_init_hook(Session *) { return false; }
virtual bool row_insert_hook(Session *, Table *) { return false; }
virtual bool row_update_hook(Session *, Table *,
const unsigned char *,
const unsigned char *) { return false; }
virtual bool row_delete_hook(Session *, Table *) { return false; }
virtual bool end_transaction_hook(Session *, bool, bool) { return false; }
virtual bool statement_hook(Session *, const char *, size_t) { return false; }
public:
Replicator() : enabled(true) {}
virtual ~Replicator() {}
/**
* Initialize session for replication
*/
bool session_init(Session *session)
{
return session_init_hook(session);
}
/**
* Row insert
*
* @param current Session
* @param Table inserted
*/
bool row_insert(Session *session, Table *table)
{
return row_insert_hook(session, table);
}
/**
* Row update
*
* @param current Session
* @param Table updated
* @param before values
* @param after values
*/
bool row_update(Session *session, Table *table,
const unsigned char *before,
const unsigned char *after)
{
return row_update_hook(session, table, before, after);
}
/**
* Row Delete
*
* @param current session
* @param Table deleted from
*/
bool row_delete(Session *session, Table *table)
{
return row_delete_hook(session, table);
}
/**
* End Transaction
*
* @param current Session
* @param is autocommit on?
* @param did the transaction commit?
*/
bool end_transaction(Session *session, bool autocommit, bool commit)
{
return end_transaction_hook(session, autocommit, commit);
}
/**
* Raw statement
*
* @param current Session
* @param query string
* @param length of query string in bytes
*/
bool statement(Session *session, const char *query, size_t query_length)
{
return statement_hook(session, query, query_length);
}
};
#endif /* DRIZZLED_PLUGIN_REPLICATOR_H */
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