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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008-2009 Sun Microsystems
*
* Authors:
*
* Jay Pipes <joinfu@sun.com>
*
* 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
*/
/**
* @file
*
* Defines the API of a simple reader of Transaction messages from the
* Transaction log file.
*
* @details
*
* This class is used by other plugins, for instance
* the async_replication module, in order to read the transaction log and
* return Transaction messages.
*/
#ifndef PLUGIN_TRANSACTION_LOG_TRANSACTION_LOG_READER_H
#define PLUGIN_TRANSACTION_LOG_TRANSACTION_LOG_READER_H
#include <drizzled/plugin/transaction_reader.h>
class TransactionLog;
/**
* A class which reads Transaction messages from the Transaction log file
*/
class TransactionLogReader :public drizzled::plugin::TransactionReader
{
private:
/** The Transaction log object this reader uses */
const TransactionLog &log;
public:
TransactionLogReader(std::string name_arg, const TransactionLog &in_log)
: drizzled::plugin::TransactionReader(name_arg), log(in_log)
{}
/** Destructor */
~TransactionLogReader() {}
/**
* Read and fill a Transaction message with the supplied
* Transaction message global transaction ID.
*
* @param[in] Global transaction ID to find
* @param[out] Pointer to a transaction message to fill
*
* @retval
* true if Transaction message was read successfully and the supplied pointer to message was filled
* @retval
* false if not found or read successfully
*/
bool read(const drizzled::ReplicationServices::GlobalTransactionId &to_read_trx_id,
drizzled::message::Transaction *to_fill);
};
#endif /* PLUGIN_TRANSACTION_LOG_TRANSACTION_LOG_READER_H */
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