/*******************************************************************************
################################################################################
#   Copyright (c) [2020-2022] [HCL Technologies Ltd.]                          #
#                                                                              #
#   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.                                             #
################################################################################
*******************************************************************************/

#ifndef __OBSERVER_HPP__
#define __OBSERVER_HPP__

#include <stdio.h>

class Subject;
class Observer
{
   public:
      Observer();
      ~Observer();
      virtual void update(char* message);
      virtual void unsubscribe();
      virtual void subscribe(Subject *subject);

   protected:
      char* mMessage;
      Subject *mSubject;
};

#endif

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