| /** |
| * Copyright 2016, Quickstep Research Group, Computer Sciences Department, |
| * University of Wisconsin—Madison. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| **/ |
| |
| #include "transaction/ResourceId.hpp" |
| |
| #include <cstddef> |
| #include <functional> |
| #include <string> |
| |
| #include "catalog/CatalogTypedefs.hpp" |
| #include "storage/StorageBlockInfo.hpp" |
| #include "utility/HashPair.hpp" |
| |
| #include "glog/logging.h" |
| |
| namespace quickstep { |
| namespace transaction { |
| |
| bool ResourceId::operator==(const ResourceId &other) const { |
| return db_id_ == other.db_id_ |
| && rel_id_ == other.rel_id_ |
| && block_id_ == other.block_id_ |
| && tuple_id_ == other.tuple_id_; |
| } |
| |
| ResourceId ResourceId::getParentResourceId() const { |
| if (isRelationAccess()) { |
| return ResourceId(db_id_); |
| } else if (isBlockAccess()) { |
| return ResourceId(db_id_, rel_id_); |
| } else if (isTupleAccess()) { |
| return ResourceId(db_id_, rel_id_, block_id_); |
| } else { |
| LOG(FATAL) << "Database level does not have any parent level."; |
| } |
| } |
| |
| std::string ResourceId::toString() const { |
| return "ResourceId(" + |
| std::to_string(db_id_) + ", " + |
| std::to_string(rel_id_) + ", " + |
| std::to_string(block_id_) + ", " + |
| std::to_string(tuple_id_) + ")"; |
| } |
| |
| std::size_t |
| ResourceId::ResourceIdHasher::operator()(const ResourceId &rid) const { |
| const std::size_t hash1 = std::hash<database_id>()(rid.db_id_); |
| const std::size_t hash2 = std::hash<relation_id>()(rid.rel_id_); |
| const std::size_t hash3 = std::hash<block_id>()(rid.block_id_); |
| const std::size_t hash4 = std::hash<tuple_id>()(rid.tuple_id_); |
| |
| const std::size_t comb1 = CombineHashes(hash1, hash2); |
| const std::size_t comb2 = CombineHashes(hash3, hash4); |
| |
| return CombineHashes(comb1, comb2); |
| } |
| |
| } // namespace transaction |
| } // namespace quickstep |