mirror of https://gitee.com/bigwinds/arangodb
91 lines
2.8 KiB
C++
91 lines
2.8 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_AQL_BIND_PARAMETERS_H
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#define ARANGOD_AQL_BIND_PARAMETERS_H 1
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#include "Basics/Common.h"
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#include <velocypack/Builder.h>
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#include <velocypack/Slice.h>
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#include <velocypack/velocypack-aliases.h>
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namespace arangodb {
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namespace aql {
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typedef std::unordered_map<std::string, std::pair<arangodb::velocypack::Slice, bool>> BindParametersType;
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class BindParameters {
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public:
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BindParameters(BindParameters const&) = delete;
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BindParameters& operator=(BindParameters const&) = delete;
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BindParameters() : _builder(nullptr), _parameters(), _processed(false) {}
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/// @brief create the parameters
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explicit BindParameters(std::shared_ptr<arangodb::velocypack::Builder> const& builder)
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: _builder(builder), _parameters(), _processed(false) {}
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/// @brief destroy the parameters
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~BindParameters() = default;
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public:
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/// @brief return all parameters
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BindParametersType& get() {
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process();
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return _parameters;
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}
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/// @brief return the bind parameters as passed by the user
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std::shared_ptr<arangodb::velocypack::Builder> builder() const {
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return _builder;
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}
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/// @brief create a hash value for the bind parameters
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uint64_t hash() const;
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/// @brief strip collection name prefixes from the parameters
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/// the values must be a VelocyPack array
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static void stripCollectionNames(arangodb::velocypack::Slice const&,
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std::string const& collectionName,
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arangodb::velocypack::Builder& result);
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private:
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/// @brief process the parameters
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void process();
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private:
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/// @brief the parameter values
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std::shared_ptr<arangodb::velocypack::Builder> _builder;
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/// @brief pointer to collection parameters
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BindParametersType _parameters;
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/// @brief internal state
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bool _processed;
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};
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} // namespace aql
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} // namespace arangodb
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#endif
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