They're not really singletons....the problem is related though.
-----Original Message----- From: Discussion of advanced .NET topics. [mailto:[EMAIL PROTECTED] On Behalf Of Shawn Wildermuth (MVP) Sent: 27 April 2007 12:32 To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM Subject: Re: [ADVANCED-DOTNET] Serialising almost singletons.... I don't get the issue. Why are you serializing the singleton? Thanks, Shawn Wildermuth http://adoguy.com http://wildermuthconsulting.com Microsoft MVP (C#), MCSD.NET, Author and Speaker -----Original Message----- From: Discussion of advanced .NET topics. [mailto:[EMAIL PROTECTED] On Behalf Of Nicholls, Mark Sent: Friday, April 27, 2007 7:03 AM To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM Subject: Re: [ADVANCED-DOTNET] Serialising almost singletons.... I've got a solution...it isn't especially pleasant though. I pretty much implement the singleton code as published.......but use ISerializable.GetObjectData To explicitly push the state for the "SingletonSerializationHelper" to recreate the 'singleton' It's unpleasant because I have 1 class having to know the internal structure of another class.....it's a bug waiting to happen. Is there a better way? -----Original Message----- From: Discussion of advanced .NET topics. [mailto:[EMAIL PROTECTED] On Behalf Of Nicholls, Mark Sent: 27 April 2007 11:41 To: ADVANCED-DOTNET@DISCUSS.DEVELOP.COM Subject: [ADVANCED-DOTNET] Serialising almost singletons.... I have a problem very similar (but not quite the same) as serialization of singletons...e.g. with a singleton, you serialise it, deserialise it, and now effectively have a clone of the original.....well documented and I know how to get around it (even if I don't understand exactly the dot net serialisation mechanism). My problem is similar, I have a set of objects that are created via a factory and are unique for their specific state.....so for example if the class was class Person { public Person(string name); } class PersonFactory { IDictionary<string,Person> uniquePeople = ...bla bla Person GetPerson(string name) { if (!uniquePeople.ContainsKey(name)) { uniquePeople.Add(name, new Person(name)); } return uniquePeople[name]; } } The examples of how to handle singletons don't explain how to handle state......i.e. as it's a singleton, the state is the state of the singleton currently in memory. Can you help? =================================== This list is hosted by DevelopMentor(r) http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com =================================== This list is hosted by DevelopMentor. http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com =================================== This list is hosted by DevelopMentor(r) http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com =================================== This list is hosted by DevelopMentor® http://www.develop.com View archives and manage your subscription(s) at http://discuss.develop.com
