GNU CommonC++
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00001 // Copyright (C) 2001-2005 Open Source Telecom Corporation. 00002 // Copyright (C) 2006-2010 David Sugar, Tycho Softworks. 00003 // 00004 // This program is free software; you can redistribute it and/or modify 00005 // it under the terms of the GNU General Public License as published by 00006 // the Free Software Foundation; either version 2 of the License, or 00007 // (at your option) any later version. 00008 // 00009 // This program is distributed in the hope that it will be useful, 00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00012 // GNU General Public License for more details. 00013 // 00014 // You should have received a copy of the GNU General Public License 00015 // along with this program; if not, write to the Free Software 00016 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00017 // 00018 // As a special exception to the GNU General Public License, permission is 00019 // granted for additional uses of the text contained in its release 00020 // of Common C++. 00021 // 00022 // The exception is that, if you link the Common C++ library with other 00023 // files to produce an executable, this does not by itself cause the 00024 // resulting executable to be covered by the GNU General Public License. 00025 // Your use of that executable is in no way restricted on account of 00026 // linking the Common C++ library code into it. 00027 // 00028 // This exception does not however invalidate any other reasons why 00029 // the executable file might be covered by the GNU General Public License. 00030 // 00031 // This exception applies only to the code released under the 00032 // name Common C++. If you copy code from other releases into a copy of 00033 // Common C++, as the General Public License permits, the exception does 00034 // not apply to the code that you add in this way. To avoid misleading 00035 // anyone as to the status of such modified files, you must delete 00036 // this exception notice from them. 00037 // 00038 // If you write modifications of your own for Common C++, it is your choice 00039 // whether to permit this exception to apply to your modifications. 00040 // If you do not wish that, delete this exception notice. 00041 00047 #ifndef CCXX_OBJLINK_H 00048 #define CCXX_OBJLINK_H 00049 #include <cstddef> 00050 00051 #ifdef CCXX_NAMESPACES 00052 namespace ost { 00053 #endif 00054 00063 template <class T, typename K> 00064 class objList { 00065 protected: 00066 static T* objFirst; 00067 T* objNext; 00068 const K objKey; 00069 00070 objList(const K key) 00071 { 00072 objKey = key; 00073 objNext = objFirst; 00074 objFirst = (T *)this; 00075 } 00076 public: 00077 static T* getObject(const K& key); 00078 }; 00079 00080 template <class T, typename K> 00081 T *objList<T, K>::objFirst = NULL; 00082 00083 template <class T, typename K> 00084 T *objList<T, K>::getObject(const K& key) 00085 { 00086 T *obj = objList<T, K>::objFirst; 00087 while(obj) { 00088 if(key == obj->objKey) 00089 break; 00090 obj = obj->objNext; 00091 } 00092 return obj; 00093 } 00094 00095 #ifdef CCXX_NAMESPACES 00096 } 00097 #endif 00098 00099 #endif