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SubjectObserver.hpp

00001 #if !defined(__SUBJECTOBSERVER_HPP) 00002 #define __SUBJECTOBSERVER_HPP 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 <corelinux/Common.hpp> 00026 #endif 00027 00028 #if !defined(__SUBJECT_HPP) 00029 #include <corelinux/Subject.hpp> 00030 #endif 00031 00032 #if !defined(__OBSERVER_HPP) 00033 #include <corelinux/Observer.hpp> 00034 #endif 00035 00036 #if !defined(__MAP_HPP) 00037 #include <corelinux/Map.hpp> 00038 #endif 00039 00040 DECLARE_CLASS( SubjectObserver ); 00041 00048 class SubjectObserver : public CORELINUX( Subject ), CORELINUX( Observer ) 00049 { 00050 CORELINUX_MULTIMAP 00051 ( 00052 DwordIdentifier, 00053 CORELINUX(ObserverPtr), 00054 less<DwordIdentifier>, 00055 ObserverMap 00056 ); 00057 00058 public: 00059 00060 // 00061 // Constructors and destructor 00062 // 00063 00065 00066 SubjectObserver( void ); 00067 00069 00070 virtual ~SubjectObserver( void ); 00071 00072 // 00073 // Operator overloads 00074 // 00076 00077 bool operator=( SubjectObserverCref ) const; 00078 00079 // 00080 // Mutators 00081 // 00082 00089 virtual void addObserver 00090 ( 00091 CORELINUX( ObserverPtr ), 00092 CORELINUX( Event<corelinux::Identifier> ) * 00093 ) 00094 throw ( CORELINUX( NullPointerException ) ) ; 00095 00102 virtual void removeObserver( CORELINUX( ObserverPtr ) ) 00103 throw ( CORELINUX( NullPointerException ) ) ; 00104 00111 virtual void removeObserver 00112 ( 00113 CORELINUX( ObserverPtr ), 00114 CORELINUX( Event<corelinux::Identifier> ) * 00115 ) 00116 throw ( CORELINUX( NullPointerException ) ) ; 00117 00118 // 00119 // Iterator Factory methods 00120 // 00126 virtual CORELINUX(Iterator< corelinux::ObserverPtr >) 00127 *createIterator( void ); 00128 00136 virtual CORELINUX(Iterator< corelinux::ObserverPtr >) *createIterator 00137 ( 00138 CORELINUX( Event<corelinux::Identifier> ) * 00139 ) 00140 throw ( CORELINUX( NullPointerException ) ) ; 00141 00148 virtual void destroyIterator 00149 ( 00150 CORELINUX(Iterator< corelinux::ObserverPtr >) * 00151 ) 00152 throw ( CORELINUX( NullPointerException ) ) ; 00153 00154 protected: 00155 00157 00158 SubjectObserver( SubjectObserverCref ) 00159 throw ( CORELINUX( Assertion ) ); 00160 00162 00163 SubjectObserverRef operator=( SubjectObserverCref ) 00164 throw ( CORELINUX( Assertion ) ); 00165 00166 private: 00168 00169 ObserverMap theObserverMap; 00170 00171 }; 00172 00173 00174 #endif // if !defined(__SUBJECTOBSERVER_HPP) 00175 00176 /* 00177 Common rcs information do not modify 00178 $Author: prudhomm $ 00179 $Revision: 1.2 $ 00180 $Date: 2000/08/31 22:49:01 $ 00181 $Locker: $ 00182 */ 00183

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