00001 /******************************************************************************* 00002 00003 @file IPickle.d 00004 00005 Copyright (c) 2004 Kris Bell 00006 00007 This software is provided 'as-is', without any express or implied 00008 warranty. In no event will the authors be held liable for damages 00009 of any kind arising from the use of this software. 00010 00011 Permission is hereby granted to anyone to use this software for any 00012 purpose, including commercial applications, and to alter it and/or 00013 redistribute it freely, subject to the following restrictions: 00014 00015 1. The origin of this software must not be misrepresented; you must 00016 not claim that you wrote the original software. If you use this 00017 software in a product, an acknowledgment within documentation of 00018 said product would be appreciated but is not required. 00019 00020 2. Altered source versions must be plainly marked as such, and must 00021 not be misrepresented as being the original software. 00022 00023 3. This notice may not be removed or altered from any distribution 00024 of the source. 00025 00026 4. Derivative works are permitted, but they must carry this notice 00027 in full and credit the original source. 00028 00029 00030 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 00031 00032 00033 @version Initial version, March 2004 00034 @author Kris 00035 00036 00037 *******************************************************************************/ 00038 00039 module mango.io.model.IPickle; 00040 00041 public import mango.io.model.IReader, 00042 mango.io.model.IWriter; 00043 00044 /******************************************************************************* 00045 00046 Interface for all serializable classes. Such classes are intended 00047 to be transported over a network, or be frozen in a file for later 00048 reconstruction. 00049 00050 *******************************************************************************/ 00051 00052 interface IPickle : IWritable, IReadable 00053 { 00054 /*********************************************************************** 00055 00056 Identify this serializable class via a char[]. This should 00057 be (per class) unique within the domain. Use version numbers 00058 or similar mechanism to isolate different implementations of 00059 the same class. 00060 00061 ***********************************************************************/ 00062 00063 char[] getGuid (); 00064 } 00065 00066 00067 /******************************************************************************* 00068 00069 Interface for all deserializable classes. Such classes either 00070 implement the full concrete class instance or they act as a 00071 proxy of sorts, creating the true instance only when called 00072 upon to do so. An IPickleProxy could perhaps take alternative 00073 action when called upon to create an "old" or "unsupported" 00074 class guid. The default behaviour is to throw an exception 00075 when an unknown guid is seen. 00076 00077 *******************************************************************************/ 00078 00079 interface IPickleFactory 00080 { 00081 /*********************************************************************** 00082 00083 Identify this serializable class via a char[]. This should 00084 be (per class) unique within the domain. Use version numbers 00085 or similar mechanism to isolate different implementations of 00086 the same class. 00087 00088 ***********************************************************************/ 00089 00090 char[] getGuid (); 00091 00092 /*********************************************************************** 00093 00094 This defines the factory method. Each IPickleProxy object 00095 provides a factory for creating a deserialized instance. 00096 The factory is registered along with the appropriate guid. 00097 00098 ***********************************************************************/ 00099 00100 Object create (IReader reader); 00101 } 00102