00001 /*************** 00002 Copyright (C) 2008 by James Nutaro 00003 00004 This library is free software; you can redistribute it and/or 00005 modify it under the terms of the GNU Lesser General Public 00006 License as published by the Free Software Foundation; either 00007 version 2 of the License, or (at your option) any later version. 00008 00009 This library 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 GNU 00012 Lesser General Public License for more details. 00013 00014 You should have received a copy of the GNU Lesser General Public 00015 License along with this library; if not, write to the Free Software 00016 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00017 00018 Bugs, comments, and questions can be sent to nutaro@gmail.com 00019 ***************/ 00020 #ifndef __adevs_msg_manager_h_ 00021 #define __adevs_msg_manager_h_ 00022 00023 namespace adevs 00024 { 00025 00030 template <typename X> class MessageManager 00031 { 00032 public: 00034 virtual X clone(X& value) = 0; 00036 virtual void destroy(X& value) = 0; 00037 virtual ~MessageManager(){} 00038 }; 00039 00044 template <typename X> class NullMessageManager: 00045 public MessageManager<X> 00046 { 00047 public: 00048 // Uses the objects default copy constructor 00049 X clone(X& value) { return value; } 00050 // Takes no action on the value 00051 void destroy(X& value){} 00052 }; 00053 00054 } 00055 00056 #endif