9ce2081103
Reviewers: teon.banek, dtomicevic, mislav.bradac, dgleich, buda Reviewed By: buda Subscribers: pullbot Differential Revision: https://phabricator.memgraph.io/D207
104 lines
3.0 KiB
C++
104 lines
3.0 KiB
C++
#include "storage/record_accessor.hpp"
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#include "database/graph_db_accessor.hpp"
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#include "storage/edge.hpp"
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#include "storage/vertex.hpp"
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#include "utils/assert.hpp"
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template <typename TRecord>
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RecordAccessor<TRecord>::RecordAccessor(mvcc::VersionList<TRecord> &vlist,
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GraphDbAccessor &db_accessor)
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: db_accessor_(&db_accessor), vlist_(&vlist) {
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Reconstruct();
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}
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template <typename TRecord>
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const PropertyValue &RecordAccessor<TRecord>::PropsAt(
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GraphDbTypes::Property key) const {
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return current().properties_.at(key);
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}
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template <typename TRecord>
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size_t RecordAccessor<TRecord>::PropsErase(GraphDbTypes::Property key) {
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return update().properties_.erase(key);
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}
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template <typename TRecord>
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void RecordAccessor<TRecord>::PropsClear() {
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update().properties_.clear();
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}
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template <typename TRecord>
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const PropertyValueStore<GraphDbTypes::Property>
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&RecordAccessor<TRecord>::Properties() const {
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return current().properties_;
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}
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template <typename TRecord>
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void RecordAccessor<TRecord>::PropertiesAccept(
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std::function<void(const GraphDbTypes::Property key,
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const PropertyValue &prop)>
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handler,
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std::function<void()> finish) const {
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current().properties_.Accept(handler, finish);
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}
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template <typename TRecord>
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GraphDbAccessor &RecordAccessor<TRecord>::db_accessor() const {
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return *db_accessor_;
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}
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template <typename TRecord>
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const uint64_t RecordAccessor<TRecord>::temporary_id() const {
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return (uint64_t)vlist_;
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}
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template <typename TRecord>
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RecordAccessor<TRecord> &RecordAccessor<TRecord>::SwitchNew() {
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if (!new_) {
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// if new_ is not set yet, look for it
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// we can just Reconstruct the pointers, old_ will get initialized
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// to the same value as it has now, and the amount of work is the
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// same as just looking for a new_ record
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Reconstruct();
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}
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// set new if we have it
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// if we don't then current_ is old_ and remains there
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if (new_) current_ = new_;
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debug_assert(current_ != nullptr,
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"RecordAccessor::SwitchNew - current_ is nullptr");
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return *this;
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}
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template <typename TRecord>
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RecordAccessor<TRecord> &RecordAccessor<TRecord>::SwitchOld() {
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// if this whole record is new (new version-list) then we don't
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// have a valid old_ version. in such a situation SwitchOld
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// is not a legal function call
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debug_assert(old_ != nullptr,
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"RecordAccessor.old_ is nullptr and SwitchOld called");
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current_ = old_;
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return *this;
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}
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template <typename TRecord>
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void RecordAccessor<TRecord>::Reconstruct() {
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db_accessor().Reconstruct(*this);
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}
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template <typename TRecord>
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TRecord &RecordAccessor<TRecord>::update() {
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db_accessor().update(*this);
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debug_assert(new_ != nullptr, "RecordAccessor.new_ is null after update");
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return *new_;
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}
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template <typename TRecord>
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const TRecord &RecordAccessor<TRecord>::current() const {
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debug_assert(current_ != nullptr,
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"RecordAccessor.current_ pointer is nullptr");
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return *current_;
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}
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template class RecordAccessor<Vertex>;
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template class RecordAccessor<Edge>;
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