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transaction_op_error_context.hxx
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transaction_op_error_context.hxx
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/* -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
* Copyright 2020-Present Couchbase, Inc.
*
* Licensed 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.
*/
#pragma once
#include <couchbase/key_value_error_context.hxx>
#include <couchbase/query_error_context.hxx>
#include <variant>
namespace couchbase
{
class transaction_op_error_context
{
public:
transaction_op_error_context() = default;
transaction_op_error_context(std::error_code ec)
: ec_(ec)
{
}
transaction_op_error_context(std::error_code ec, couchbase::key_value_error_context cause)
: ec_(ec)
, cause_(std::move(cause))
{
}
transaction_op_error_context(std::error_code ec, couchbase::query_error_context cause)
: ec_(ec)
, cause_(std::move(cause))
{
}
/**
* The error_code associated with this error context.
*
* Note that some query errors are not _transaction_ errors, so this error code will be 0, but
* there will be a @ref cause() with a @ref query_error_context in it. These errors do not
* rollback a transaction. If you want to roll it back, raise an exception.
*
* @return a error code, if any.
*/
[[nodiscard]] std::error_code ec() const
{
return ec_;
}
/**
* The underlying cause of this error. This can be either a @ref key_value_error_context or a
* @ref query_error_context.
*
* @return the error_context associated with the underlying cause of this error.
*/
[[nodiscard]] std::variant<std::monostate, key_value_error_context, query_error_context> cause()
const
{
return cause_;
}
private:
std::error_code ec_{}; // a transaction_op error_code
std::variant<std::monostate, key_value_error_context, query_error_context> cause_{};
};
} // namespace couchbase