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Mediator.hpp

00001 #if   !defined(__MEDIATOR_HPP)
00002 #define __MEDIATOR
00003 
00004 /*
00005    CoreLinux++ 
00006    Copyright (C) 2000 CoreLinux Consortium
00007   
00008    The CoreLinux++ Library is free software; you can redistribute it and/or
00009    modify it under the terms of the GNU Library General Public License as
00010    published by the Free Software Foundation; either version 2 of the
00011    License, or (at your option) any later version.
00012 
00013    The CoreLinux++ Library Library is distributed in the hope that it will 
00014    be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
00015    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00016    Library General Public License for more details.
00017 
00018    You should have received a copy of the GNU Library General Public
00019    License along with the GNU C Library; see the file COPYING.LIB.  If not,
00020    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00021    Boston, MA 02111-1307, USA.  
00022 */   
00023 
00024 #if   !defined(__COMMON_HPP)
00025 #include <Common.hpp>
00026 #endif
00027 
00028 #if   !defined(__ITERATOR_HPP)
00029 #include <Iterator.hpp>
00030 #endif
00031 
00032 #if   !defined(__EVENT_HPP)
00033 #include <Event.hpp>
00034 #endif
00035 
00036 namespace corelinux
00037 {
00038    DECLARE_CLASS( Colleague );
00039    DECLARE_CLASS( Mediator );
00040 
00045    class Mediator
00046    {
00047    public:
00048 
00049       //
00050       // Constructors and destructor
00051       //
00052 
00054 
00055                         Mediator( void );
00056 
00058 
00059                         Mediator( MediatorCref );
00060 
00062 
00063       virtual           ~Mediator( void );
00064 
00065       //
00066       // Operator overloads
00067       //
00068 
00070 
00071                MediatorRef operator=( MediatorCref );
00072 
00074 
00075                bool operator==( MediatorCref ) const;
00076 
00077       //
00078       // The working part
00079       //
00080 
00081       virtual  void  action( Event<Identifier>* ) 
00082          throw ( NullPointerException );
00083 
00084    protected:
00085 
00086       //
00087       // Mutators
00088       //
00089 
00097       virtual  void  colleagueCreated( ColleaguePtr ) = 0;
00098 
00099       //
00100       // Factory methods
00101       //
00102 
00112       virtual  Iterator<ColleaguePtr>  *createIterator( Event<Identifier>* ) = 0;
00113 
00119       virtual  void  destroyIterator( Iterator<ColleaguePtr> * ) = 0;
00120 
00121    private:
00122 
00123    };
00124 }
00125 
00126 #endif // if !defined(__MEDIATOR_HPP)
00127 
00128 /*
00129    Common rcs information do not modify
00130    $Author: frankc $
00131    $Revision: 1.1 $
00132    $Date: 2000/05/07 03:41:47 $
00133    $Locker:  $
00134 */
00135 

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