sync/syncable/mutable_entry.h

   1 // Copyright 2012 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 SYNC_SYNCABLE_MUTABLE_ENTRY_H_
   6 #define SYNC_SYNCABLE_MUTABLE_ENTRY_H_
   7
   8 #include "sync/base/sync_export.h"
   9 #include "sync/internal_api/public/base/model_type.h"
  10 #include "sync/syncable/entry.h"
  11 #include "sync/syncable/metahandle_set.h"
  12 #include "sync/syncable/model_neutral_mutable_entry.h"
  13
  14 namespace syncer {
  15 class WriteNode;
  16
  17 namespace syncable {
  18
  19 enum Create {
  20   CREATE
  21 };
  22
  23 class WriteTransaction;
  24
  25 // A mutable meta entry.  Changes get committed to the database when the
  26 // WriteTransaction is destroyed.
  27 class SYNC_EXPORT_PRIVATE MutableEntry : public ModelNeutralMutableEntry {
  28   void Init(WriteTransaction* trans, ModelType model_type,
  29             const Id& parent_id, const std::string& name);
  30
  31  public:
  32   MutableEntry(WriteTransaction* trans, CreateNewUpdateItem, const Id& id);
  33   MutableEntry(WriteTransaction* trans, Create, ModelType model_type,
  34                const Id& parent_id, const std::string& name);
  35   MutableEntry(WriteTransaction* trans, GetByHandle, int64);
  36   MutableEntry(WriteTransaction* trans, GetById, const Id&);
  37   MutableEntry(WriteTransaction* trans, GetByClientTag, const std::string& tag);
  38   MutableEntry(WriteTransaction* trans, GetTypeRoot, ModelType type);
  39
  40   inline WriteTransaction* write_transaction() const {
  41     return write_transaction_;
  42   }
  43
  44   // Model-changing setters.  These setters make user-visible changes that will
  45   // need to be communicated either to the local model or the sync server.
  46   void PutLocalExternalId(int64 value);
  47   void PutMtime(base::Time value);
  48   void PutCtime(base::Time value);
  49   void PutParentId(const Id& value);
  50   void PutIsDir(bool value);
  51   void PutIsDel(bool value);
  52   void PutNonUniqueName(const std::string& value);
  53   void PutSpecifics(const sync_pb::EntitySpecifics& value);
  54   void PutUniquePosition(const UniquePosition& value);
  55
  56   // Sets the position of this item, and updates the entry kernels of the
  57   // adjacent siblings so that list invariants are maintained.  Returns false
  58   // and fails if |predecessor_id| does not identify a sibling.  Pass the root
  59   // ID to put the node in first position.
  60   bool PutPredecessor(const Id& predecessor_id);
  61
  62   void PutAttachmentMetadata(
  63       const sync_pb::AttachmentMetadata& attachment_metadata);
  64
  65   // Update attachment metadata, replace all records matching attachment id's
  66   // unique id with updated attachment id that contains server info.
  67   // Set is_in_server for corresponding records.
  68   void UpdateAttachmentIdWithServerInfo(
  69       const sync_pb::AttachmentIdProto& updated_attachment_id);
  70
  71  private:
  72   // Kind of redundant. We should reduce the number of pointers
  73   // floating around if at all possible. Could we store this in Directory?
  74   // Scope: Set on construction, never changed after that.
  75   WriteTransaction* const write_transaction_;
  76
  77   DISALLOW_COPY_AND_ASSIGN(MutableEntry);
  78 };
  79
  80 // This function sets only the flags needed to get this entry to sync.
  81 bool MarkForSyncing(syncable::MutableEntry* e);
  82
  83 }  // namespace syncable
  84 }  // namespace syncer
  85
  86 #endif  // SYNC_SYNCABLE_MUTABLE_ENTRY_H_