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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef COMPONENTS_SYNC_API_ENTITY_DATA_H_ | |
| 6 #define COMPONENTS_SYNC_API_ENTITY_DATA_H_ | |
| 7 | |
| 8 #include <map> | |
| 9 #include <memory> | |
| 10 #include <string> | |
| 11 #include <vector> | |
| 12 | |
| 13 #include "base/macros.h" | |
| 14 #include "base/time/time.h" | |
| 15 #include "base/values.h" | |
| 16 #include "components/sync/base/proto_value_ptr.h" | |
| 17 #include "components/sync/protocol/sync.pb.h" | |
| 18 | |
| 19 namespace syncer { | |
| 20 | |
| 21 struct EntityData; | |
| 22 | |
| 23 struct EntityDataTraits { | |
| 24 static void SwapValue(EntityData* dest, EntityData* src); | |
| 25 static bool HasValue(const EntityData& value); | |
| 26 static const EntityData& DefaultValue(); | |
| 27 }; | |
| 28 | |
| 29 typedef ProtoValuePtr<EntityData, EntityDataTraits> EntityDataPtr; | |
| 30 typedef std::vector<EntityDataPtr> EntityDataList; | |
| 31 typedef std::map<std::string, EntityDataPtr> EntityDataMap; | |
| 32 | |
| 33 // A light-weight container for sync entity data which represents either | |
| 34 // local data created on the ModelTypeService side or remote data created | |
| 35 // on ModelTypeWorker. | |
| 36 // EntityData is supposed to be wrapped and passed by reference. | |
| 37 struct EntityData { | |
| 38 public: | |
| 39 EntityData(); | |
| 40 ~EntityData(); | |
| 41 | |
| 42 // Typically this is a server assigned sync ID, although for a local change | |
| 43 // that represents a new entity this field might be either empty or contain | |
| 44 // a temporary client sync ID. | |
| 45 std::string id; | |
| 46 | |
| 47 // A hash based on the client tag and model type. | |
| 48 // Used for various map lookups. Should always be available. | |
| 49 // Sent to the server as SyncEntity::client_defined_unique_tag. | |
| 50 std::string client_tag_hash; | |
| 51 | |
| 52 // Entity name, used mostly for Debug purposes. | |
| 53 std::string non_unique_name; | |
| 54 | |
| 55 // Model type specific sync data. | |
| 56 sync_pb::EntitySpecifics specifics; | |
| 57 | |
| 58 // Entity creation and modification timestamps. | |
| 59 base::Time creation_time; | |
| 60 base::Time modification_time; | |
| 61 | |
| 62 // Sync ID of the parent entity. This is supposed to be set only for | |
| 63 // hierarchical datatypes (e.g. Bookmarks). | |
| 64 std::string parent_id; | |
| 65 | |
| 66 // Unique position of an entity among its siblings. This is supposed to be | |
| 67 // set only for datatypes that support positioning (e.g. Bookmarks). | |
| 68 sync_pb::UniquePosition unique_position; | |
| 69 | |
| 70 // True if EntityData represents deleted entity; otherwise false. | |
| 71 // Note that EntityData would be considered to represent a deletion if its | |
| 72 // specifics hasn't been set. | |
| 73 bool is_deleted() const { return specifics.ByteSize() == 0; } | |
| 74 | |
| 75 // Transfers this struct's data to EntityDataPtr. | |
| 76 // The return value must be assigned into another EntityDataPtr. | |
| 77 EntityDataPtr PassToPtr() WARN_UNUSED_RESULT; | |
| 78 | |
| 79 // Dumps all info into a DictionaryValue and returns it. | |
| 80 std::unique_ptr<base::DictionaryValue> ToDictionaryValue(); | |
| 81 | |
| 82 private: | |
| 83 friend struct EntityDataTraits; | |
| 84 // Used to transfer the data without copying. | |
| 85 void Swap(EntityData* other); | |
| 86 | |
| 87 DISALLOW_COPY_AND_ASSIGN(EntityData); | |
| 88 }; | |
| 89 | |
| 90 } // namespace syncer | |
| 91 | |
| 92 #endif // COMPONENTS_SYNC_API_ENTITY_DATA_H_ | |
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Chromium Code Reviews
Issue 2401223002:
[Sync] Renaming sync/api* to sync/model*. (Closed)
