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| author | Stephen D. Huston <shuston@apache.org> | 2010-04-16 20:12:55 +0000 |
|---|---|---|
| committer | Stephen D. Huston <shuston@apache.org> | 2010-04-16 20:12:55 +0000 |
| commit | e70b372b5f0b6a5e5f6e39e4897de1557c2a2089 (patch) | |
| tree | 4757029ffe7a3970cf38d32f8775a14bef7ea259 /cpp/src/qpid/store/ms-sql/SqlTransaction.cpp | |
| parent | 72432e4034623c8a5e0e1e0a7555bdd2cf76a3f3 (diff) | |
| download | qpid-python-e70b372b5f0b6a5e5f6e39e4897de1557c2a2089.tar.gz | |
Fix for QPID-2420 to correctly handle restoring and commit/abort prepared transactions.
The basic approach is documented in QPID-2420. This also makes improvements in the way changes are done to the tblMessageMap table which should perform much better, avoiding pulling the whole table into the broker just to add or edit or delete a single record. Also, some of the consistency checks and enforcements are moved into the database itself from the C++ code.
git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@935068 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'cpp/src/qpid/store/ms-sql/SqlTransaction.cpp')
| -rw-r--r-- | cpp/src/qpid/store/ms-sql/SqlTransaction.cpp | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/cpp/src/qpid/store/ms-sql/SqlTransaction.cpp b/cpp/src/qpid/store/ms-sql/SqlTransaction.cpp new file mode 100644 index 0000000000..6ad7725570 --- /dev/null +++ b/cpp/src/qpid/store/ms-sql/SqlTransaction.cpp @@ -0,0 +1,71 @@ +/*
+ *
+ * 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 "SqlTransaction.h"
+#include "DatabaseConnection.h"
+
+namespace qpid {
+namespace store {
+namespace ms_sql {
+
+SqlTransaction::SqlTransaction(const boost::shared_ptr<DatabaseConnection>& _db)
+ : db(_db), transDepth(0)
+{
+}
+
+SqlTransaction::~SqlTransaction()
+{
+ if (transDepth > 0)
+ this->abort();
+}
+
+void
+SqlTransaction::begin()
+{
+ _bstr_t beginCmd("BEGIN TRANSACTION");
+ _ConnectionPtr c = *db;
+ c->Execute(beginCmd, NULL, adExecuteNoRecords);
+ ++transDepth;
+}
+
+void
+SqlTransaction::commit()
+{
+ if (transDepth > 0) {
+ _bstr_t commitCmd("COMMIT TRANSACTION");
+ _ConnectionPtr c = *db;
+ c->Execute(commitCmd, NULL, adExecuteNoRecords);
+ --transDepth;
+ }
+}
+
+void
+SqlTransaction::abort()
+{
+ if (transDepth > 0) {
+ _bstr_t rollbackCmd("ROLLBACK TRANSACTION");
+ _ConnectionPtr c = *db;
+ c->Execute(rollbackCmd, NULL, adExecuteNoRecords);
+ transDepth = 0;
+ }
+}
+
+}}} // namespace qpid::store::ms_sql
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