File: invalidation_handler.h

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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_INVALIDATION_INVALIDATION_HANDLER_H_
#define COMPONENTS_INVALIDATION_INVALIDATION_HANDLER_H_

#include <string>

#include "components/invalidation/invalidation_export.h"
#include "components/invalidation/invalidator_state.h"

namespace syncer {

class ObjectIdInvalidationMap;

class INVALIDATION_EXPORT InvalidationHandler {
 public:
  InvalidationHandler();

  // Called when the invalidator state changes.
  virtual void OnInvalidatorStateChange(InvalidatorState state) = 0;

  // Called when a invalidation is received.  The per-id states are in
  // |id_state_map| and the source is in |source|.  Note that this may be
  // called regardless of the current invalidator state.
  virtual void OnIncomingInvalidation(
      const ObjectIdInvalidationMap& invalidation_map) = 0;

  virtual std::string GetOwnerName() const = 0;

 protected:
  virtual ~InvalidationHandler();
};

}  // namespace syncer

#endif  // COMPONENTS_INVALIDATION_INVALIDATION_HANDLER_H_