mirror of https://gitee.com/bigwinds/arangodb
123 lines
4.6 KiB
C++
123 lines
4.6 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_UTILS_SINGLE_COLLECTION_TRANSACTION_H
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#define ARANGOD_UTILS_SINGLE_COLLECTION_TRANSACTION_H 1
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#include "Basics/Common.h"
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#include "Transaction/Methods.h"
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#include "VocBase/AccessMode.h"
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#include "VocBase/voc-types.h"
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namespace arangodb {
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namespace transaction {
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class Context;
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}
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class SingleCollectionTransaction final : public transaction::Methods {
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public:
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//////////////////////////////////////////////////////////////////////////////
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/// @brief create the transaction, using a data-source
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//////////////////////////////////////////////////////////////////////////////
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SingleCollectionTransaction(
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std::shared_ptr<transaction::Context> const& transactionContext,
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LogicalDataSource const& collection,
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AccessMode::Type accessType
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);
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//////////////////////////////////////////////////////////////////////////////
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/// @brief create the transaction, using a collection name
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//////////////////////////////////////////////////////////////////////////////
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SingleCollectionTransaction(std::shared_ptr<transaction::Context> const&,
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std::string const&, AccessMode::Type);
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//////////////////////////////////////////////////////////////////////////////
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/// @brief end the transaction
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//////////////////////////////////////////////////////////////////////////////
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~SingleCollectionTransaction() = default;
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private:
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//////////////////////////////////////////////////////////////////////////////
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/// @brief get the underlying transaction collection
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//////////////////////////////////////////////////////////////////////////////
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TransactionCollection* resolveTrxCollection();
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public:
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//////////////////////////////////////////////////////////////////////////////
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/// @brief get the underlying document collection
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/// note that we have two identical versions because this is called
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/// in two different situations
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//////////////////////////////////////////////////////////////////////////////
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LogicalCollection* documentCollection();
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//////////////////////////////////////////////////////////////////////////////
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/// @brief get the underlying collection's id
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//////////////////////////////////////////////////////////////////////////////
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inline TRI_voc_cid_t cid() const { return _cid; }
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#ifdef USE_ENTERPRISE
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using transaction::Methods::addCollectionAtRuntime;
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#endif
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/// @brief add a collection to the transaction for read, at runtime
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/// note that this can only be ourselves
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TRI_voc_cid_t addCollectionAtRuntime(std::string const&) override final {
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return _cid;
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}
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//////////////////////////////////////////////////////////////////////////////
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/// @brief get the underlying collection's name
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//////////////////////////////////////////////////////////////////////////////
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std::string name();
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private:
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//////////////////////////////////////////////////////////////////////////////
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/// @brief collection id
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//////////////////////////////////////////////////////////////////////////////
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TRI_voc_cid_t _cid;
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//////////////////////////////////////////////////////////////////////////////
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/// @brief trxCollection cache
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//////////////////////////////////////////////////////////////////////////////
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TransactionCollection* _trxCollection;
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//////////////////////////////////////////////////////////////////////////////
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/// @brief LogicalCollection* cache
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//////////////////////////////////////////////////////////////////////////////
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LogicalCollection* _documentCollection;
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//////////////////////////////////////////////////////////////////////////////
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/// @brief collection access type
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//////////////////////////////////////////////////////////////////////////////
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AccessMode::Type _accessType;
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};
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}
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#endif |