75950664a7
Summary: This diff splits single node and distributed storage from each other. Currently all of the storage code is copied into two directories (one single node, one distributed). The logic used in the storage implementation isn't touched, it will be refactored in following diffs. To clean the working directory after this diff you should execute: ``` rm database/state_delta.capnp rm database/state_delta.hpp rm storage/concurrent_id_mapper_rpc_messages.capnp rm storage/concurrent_id_mapper_rpc_messages.hpp ``` Reviewers: teon.banek, buda, msantl Reviewed By: teon.banek, msantl Subscribers: teon.banek, pullbot Differential Revision: https://phabricator.memgraph.io/D1625
68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
#pragma once
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#include "glog/logging.h"
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#include <algorithm>
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#include <utility>
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#include <vector>
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#include "storage/common/property_value.hpp"
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/**
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* Encapsulates user provided parameters (and stripped literals)
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* and provides ways of obtaining them by position.
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*/
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namespace query {
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struct Parameters {
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public:
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/**
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* Adds a value to the stripped arguments under a token position.
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*
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* @param position Token position in query of value.
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* @param value
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*/
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void Add(int position, const PropertyValue &value) {
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storage_.emplace_back(position, value);
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}
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/**
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* Returns the value found for the given token position.
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*
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* @param position Token position in query of value.
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* @return Value for the given token position.
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*/
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const PropertyValue &AtTokenPosition(int position) const {
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auto found = std::find_if(storage_.begin(), storage_.end(),
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[&](const std::pair<int, PropertyValue> a) {
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return a.first == position;
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});
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CHECK(found != storage_.end())
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<< "Token position must be present in container";
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return found->second;
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}
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/**
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* Returns the position-th stripped value. Asserts that this
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* container has at least (position + 1) elements.
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*
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* @param position Which stripped param is sought.
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* @return Token position and value for sought param.
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*/
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const std::pair<int, PropertyValue> &At(int position) const {
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CHECK(position < static_cast<int>(storage_.size())) << "Invalid position";
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return storage_[position];
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}
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/** Returns the number of arguments in this container */
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auto size() const { return storage_.size(); }
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auto begin() const { return storage_.begin(); }
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auto end() const { return storage_.end(); }
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private:
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std::vector<std::pair<int, PropertyValue>> storage_;
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};
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} // namespace query
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