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#ifndef QPID_STORE_MSSQL_MESSAGEMAPRECORDSET_H
#define QPID_STORE_MSSQL_MESSAGEMAPRECORDSET_H
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include <icrsint.h>
#include "Recordset.h"
#include <qpid/broker/RecoveryManager.h>
namespace qpid {
namespace store {
namespace ms_sql {
/**
* @class MessageMapRecordset
*
* Class for the message map (message -> queue) records.
*/
class MessageMapRecordset : public Recordset {
// These values are defined in a constraint on the tblMessageMap table.
// the prepareStatus column can only be null, 1, or 2.
enum { PREPARE_ADD=1, PREPARE_REMOVE=2 };
class MessageMap : public CADORecordBinding {
BEGIN_ADO_BINDING(MessageMap)
ADO_FIXED_LENGTH_ENTRY2(1, adBigInt, messageId, FALSE)
ADO_FIXED_LENGTH_ENTRY2(2, adBigInt, queueId, FALSE)
ADO_FIXED_LENGTH_ENTRY2(3, adTinyInt, prepareStatus, FALSE)
ADO_VARIABLE_LENGTH_ENTRY(4, adVarBinary, xid, sizeof(xid),
xidStatus, xidLength, FALSE)
END_ADO_BINDING()
public:
uint64_t messageId;
uint64_t queueId;
uint8_t prepareStatus;
char xid[512];
int xidStatus;
uint32_t xidLength;
};
void selectOnXid(const std::string& xid);
public:
virtual void open(DatabaseConnection* conn, const std::string& table);
// Add a new mapping
void add(uint64_t messageId,
uint64_t queueId,
const std::string& xid = "");
// Remove a specific mapping.
void remove(uint64_t messageId, uint64_t queueId);
// Mark the indicated message->queue entry pending removal. The entry
// for the mapping is updated to indicate pending removal with the
// specified xid.
void pendingRemove(uint64_t messageId,
uint64_t queueId,
const std::string& xid);
// Remove mappings for all messages on a specified queue.
void removeForQueue(uint64_t queueId);
// Commit records recorded as prepared.
void commitPrepared(const std::string& xid);
// Abort prepared changes.
void abortPrepared(const std::string& xid);
// Recover the mappings of message ID -> vector<queue ID>.
void recover(MessageQueueMap& msgMap);
// Dump table contents; useful for debugging.
void dump();
};
}}} // namespace qpid::store::ms_sql
#endif /* QPID_STORE_MSSQL_MESSAGEMAPRECORDSET_H */
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