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/*
* Copyright (C) 2010 Djellel Eddine Difallah
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* * Neither the name of Djellel Eddine Difallah nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef PLUGIN_MEMCACHED_QUERY_CACHE_INVALIDATOR_H
#define PLUGIN_MEMCACHED_QUERY_CACHE_INVALIDATOR_H
#include <drizzled/replication_services.h>
#include <drizzled/plugin/transaction_replicator.h>
#include <drizzled/plugin/transaction_applier.h>
#include <drizzled/message/transaction.pb.h>
#include <string>
namespace drizzled
{
class Session;
}
class Invalidator : public drizzled::plugin::TransactionApplier
{
public:
Invalidator(std::string name_arg);
/** Destructor */
~Invalidator() {}
/**
* Does something with the transaction message
*
* @param transaction message to be invalidated if present in the cache
*/
drizzled::plugin::ReplicationReturnCode
apply(drizzled::Session &in_session,
const drizzled::message::Transaction &to_apply);
private:
/**
* Given a supplied Statement message, parse out the table
* and schema name from the various metadata and header
* pieces for the different Statement types.
*
* @param[in] Statement to parse
* @param[out] Schema name
* @param[out] Table name
*/
void parseStatementTableMetadata(const drizzled::message::Statement &in_statement,
std::string &in_schema_name,
std::string &in_table_name) const;
/**
* Given a schema name and table name, delete all the entries
* of the table from the cache.
*
* @param[in] stmt The statement message
* @param[in] Schema name
* @param[in] Table name
*/
void invalidateByTableName(const std::string &in_schema_name,
const std::string &in_table_name) const;
};
#endif /* PLUGIN_MEMCACHED_QUERY_CACHE_INVALIDATOR_H */
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