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//+======================================================================
// $Source$
//
// Project:   Tango
//
// Description:  java source code for the TANGO client/server API.
//
// $Author: pascal_verdier $
//
// Copyright (C) :      2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,
//						European Synchrotron Radiation Facility
//                      BP 220, Grenoble 38043
//                      FRANCE
//
// This file is part of Tango.
//
// Tango is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// Tango is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public License
// along with Tango.  If not, see .
//
// $Revision: 25296 $
//
//-======================================================================


package fr.esrf.TangoApi;

import fr.esrf.TangoApi.events.EventData;

/**
 * Class Description :

 * This class define the object to be be called at
 * command_inout/reat_attribute/write_attribute asynchronous call reply.
 * 


 * 


 * 
 Usage example:  

 * 
 * class MyCallback extends CallBack

 * {

 * public void cmd_ended(CmdDoneEvent evt)

 * {

 * if (evt.err)

 * Except.print_exception(evt.errors);

 * else

 * System.out.println("The command " + evt.cmdname +

 * " returns " + evt.argout.extractDouble());

 * } 

 * }

 * 

 * class MyClass 

 * {

 * public set_read_current(double setpoint)

 * {

 * :        :        :

 * :        :        :

 * :        :        :

 * DeviceData data = new DeviceData();

 * data.insert(setpoint);

 * dev.command_inout_asynch("SetReadCurrent", data, MyCallback);

 * :        :        :

 * :        :        :

 * :        :        :

 * }

 * }

 * 
 */


public class CallBack implements java.io.Serializable {
    //===============================================================
    //===============================================================
    public void cmd_ended(CmdDoneEvent evt) {
    }

    //===============================================================
    //===============================================================
    public void attr_read(AttrReadEvent evt) {
    }

    //===============================================================
    //===============================================================
    public void attr_written(AttrWrittenEvent evt) {
    }

    //===============================================================
    //===============================================================
    public void push_event(EventData evt) {
    }
}