Sorry - intended to cc the list for reference purposes
-------------------------------------------
This is protobuf-net specific; sorry for delay bit I'm on a family weekend
and my wife deliberately picks destinations far far away from cell towers.
To explain: protobuf-net always starts from the root type; the
most-base-type that it knows of as a contract. This means that you can
still deserialize the base-type information. This mimics the scenario where
you receive a message from an up-level caller who knows about a new
subtype. It will deserialize as much as it can, basically.
Does that answer things? Do you need more?
On 15 Mar 2013 23:35, "Wallace Turner" <wallacetur...@gmail.com> wrote:
> Consider these simple classes:
>
> [DataContract]
>> public class Container
>> {
>> [DataMember(Order = 1)]
>> public Order Order { get; set; }
>> }
>>
>> [DataContract]
>> public class Order
>> {
>> [DataMember(Order = 1)]
>> public string Field1 { get; set; }
>> }
>> [DataContract]
>> public class SubOrder : Order
>> {
>> [DataMember(Order = 1)]
>> public string Field2 { get; set; }
>> }
>
>
>
> I have serialized a populated instance of Container to a base64 string:
>
> RuntimeTypeModel.Default[typeof(Order)].AddSubType(100, typeof(SubOrder));
>> var tmp = new Container() { Order = new SubOrder { Field1 = "field1",
>> Field2 = "field2" } };
>> Trace.WriteLine(Convert.ToBase64String(tmp.SerializeProto()));
>
>
> after which I removed the reference to SubOrder and attempted to
> deserialize the base64 string back to Container - to my surprise this
> worked!
>
> I understand the type information is not saved but there must be a set of
> circumstances under which this would not work - that is, if you start
> adding new fields to Order and then attempt deserialization? or perhaps
> something else?
>
>
>
>
>
>
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--
Regards,
Marc
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