mirror of https://gitee.com/bigwinds/arangodb
76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2019 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 Markus Pfeiffer
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_AQL_SUBQUERY_END_EXECUTION_NODE_H
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#define ARANGOD_AQL_SUBQUERY_END_EXECUTION_NODE_H 1
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#include "Aql/ExecutionNode.h"
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namespace arangodb {
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namespace aql {
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class SubqueryEndNode : public ExecutionNode {
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friend class ExecutionNode;
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friend class ExecutionBlock;
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public:
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SubqueryEndNode(ExecutionPlan*, arangodb::velocypack::Slice const& base);
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SubqueryEndNode(ExecutionPlan* plan, size_t id, Variable const* outVariable)
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: ExecutionNode(plan, id), _outVariable(outVariable) {
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TRI_ASSERT(_outVariable != nullptr);
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}
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CostEstimate estimateCost() const override final;
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NodeType getType() const override final { return SUBQUERY_END; }
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Variable const* outVariable() const { return _outVariable; }
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void toVelocyPackHelper(arangodb::velocypack::Builder&, unsigned flags,
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std::unordered_set<ExecutionNode const*>& seen) const override final;
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std::unique_ptr<ExecutionBlock> createBlock(
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ExecutionEngine& engine,
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std::unordered_map<ExecutionNode*, ExecutionBlock*> const&) const override;
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ExecutionNode* clone(ExecutionPlan* plan, bool withDependencies,
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bool withProperties) const override final;
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bool isEqualTo(ExecutionNode const& other) const override final;
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std::vector<Variable const*> getVariablesSetHere() const override final {
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return std::vector<Variable const*>{_outVariable};
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}
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void replaceOutVariable(Variable const* var);
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private:
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Variable const* _outVariable;
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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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