sync/notifier/invalidation_handler.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_NOTIFIER_INVALIDATION_HANDLER_H_
   6 #define SYNC_NOTIFIER_INVALIDATION_HANDLER_H_
   7
   8 #include "sync/base/sync_export.h"
   9 #include "sync/notifier/invalidator_state.h"
  10 #include "sync/notifier/object_id_invalidation_map.h"
  11
  12 namespace syncer {
  13
  14 class SYNC_EXPORT InvalidationHandler {
  15  public:
  16   // Called when the invalidator state changes.
  17   virtual void OnInvalidatorStateChange(InvalidatorState state) = 0;
  18
  19   // Called when a invalidation is received.  The per-id states are in
  20   // |id_state_map| and the source is in |source|.  Note that this may be
  21   // called regardless of the current invalidator state.
  22   virtual void OnIncomingInvalidation(
  23       const ObjectIdInvalidationMap& invalidation_map) = 0;
  24
  25  protected:
  26   virtual ~InvalidationHandler() {}
  27 };
  28
  29 }  // namespace syncer
  30
  31 #endif  // SYNC_NOTIFIER_INVALIDATION_HANDLER_H_