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+#ifndef QPID_STORE_MSSQL_VARIANTHELPER_H
+#define QPID_STORE_MSSQL_VARIANTHELPER_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 <comutil.h>
+
+namespace qpid {
+namespace store {
+namespace ms_sql {
+
+/**
+ * @class VariantHelper
+ *
+ * Class template to wrap the details of working with _variant_t objects.
+ */
+template <class Wrapped> class VariantHelper {
+private:
+ _variant_t var;
+
+public:
+ VariantHelper();
+ VariantHelper(const Wrapped &init);
+
+ VariantHelper& operator =(const Wrapped& rhs);
+ operator const _variant_t& () const;
+};
+
+// Specialization for using _variant_t to wrap a std::string
+template<> class VariantHelper<std::string> {
+private:
+ _variant_t var;
+
+public:
+ VariantHelper(const std::string &init);
+ VariantHelper& operator =(const std::string& rhs);
+ operator const _variant_t& () const;
+};
+
+}}} // namespace qpid::store::ms_sql
+
+#endif /* QPID_STORE_MSSQL_VARIANTHELPER_H */