Re: [protobuf] Inheriting protobuf messages

John, Could you please throw some light on how the problem is solved in Avro? Thanks, On Thu, Nov 15, 2018, 3:15 PM John Lonergan The flexibility and expressiveness you are after can be found in Avro. > Having been involved in a pair of big APIs recently, one using proto and > the other Avro,

[protobuf] Inheriting protobuf messages

The flexibility and expressiveness you are after can be found in Avro. Having been involved in a pair of big APIs recently, one using proto and the other Avro, the groups found it significant easier and more sustainable when using avro. A key advantage of avro was abstractions. -- You received

Re: [protobuf] Inheriting protobuf messages

I'm going to share some thoughts here simply for discussion purposes - I don't expect them to be directly applicable. FWIW, protobuf-net has spoofed inheritance for many many years. I'm able to do this because protobuf-net only needs to target .NET, which has good inheritance support. I don't

Re: [protobuf] Inheriting protobuf messages

I see two problems with this approach. It is neither cut & paste nor personal preference issue as I see. The real issues I see are: 1) The base message (MSG in the example) and the extended message (MSG2 in the example ) can belong to different package owned by different group/org. The

Re: [protobuf] Inheriting protobuf messages

I see two problems with this approach. It is neither cut & paste nor personal preference issue as I see. The real issues I see are: 1) The base message (MSG in the example) and the extended message (MSG2 in the example ) can belong to different package owned by different group/org. The

Re: [protobuf] Inheriting protobuf messages

I see two problems with this approach. It is neither cut & paste nor personal preference issue as I see. The real issues I see are: 1) The base message (MSG in the example) and the extended message (MSG2 in the example ) can belong to different package owned by different group/org. The

Re: [protobuf] Inheriting protobuf messages

Why do they "belong" on the same level? Does containment prevent you from building the system you want (and how?), or are we'll still really talking about personal preference? On Fri., 21 Oct. 2016 at 22:31, Saurabh Kumar wrote: > Sorry about that. I had written

Re: [protobuf] Inheriting protobuf messages

Sorry about that. I had written 'personal preference' because I thought it is hard to convey why I have to do it. I think simplest way to convey would be, there is one proto definition say commonmsg.proto. I do not own this and can not make any changes to this. Now I want to define many

Re: [protobuf] Inheriting protobuf messages

I know exactly what you're trying to achieve, but you haven't presented a strong case for why you want this. Both the approaches I've suggested avoid the copy pasting you're worried about, and personal preference isn't an argument. On Fri, 21 Oct 2016 at 21:55 Saurabh Kumar

Re: [protobuf] Inheriting protobuf messages

Understood but this is not what I wanted in the first place. Does someone has any idea about what makes it difficult to implement this? Also, is there a clever way to have the same behaviour? Basically, here I want to avoid copy pasting same fields over and over again (makes code less

Re: [protobuf] Inheriting protobuf messages

I meant something like: message Header { string account = 1; string symbol = 1; } message Msg1 { Header header = 1; ... } message Msg2 { Header header = 1; ... } On Wed, Oct 19, 2016 at 12:42 PM, Saurabh Kumar wrote: > Thanks for the reply. What exactly

Re: [protobuf] Inheriting protobuf messages

Thanks for the reply. What exactly do you mean by common header? On Thu, 20 Oct 2016 at 1:06 AM, Feng Xiao wrote: > > > On Wed, Oct 19, 2016 at 4:03 AM, Saurabh Kumar > wrote: > > Hi, > > This question is regarding inheritance in protobuf C++

Re: [protobuf] Inheriting protobuf messages

On Wed, Oct 19, 2016 at 4:03 AM, Saurabh Kumar wrote: > Hi, > > This question is regarding inheritance in protobuf C++ library. I will > explain what I am looking for with a concrete example. > > I have this message definition: > > message MSG1 > { >required string

[protobuf] Inheriting protobuf messages

Hi, This question is regarding inheritance in C++ protobuf library. I will explain by giving a concrete example. message MSG1 { required string account = 0; required string symbol = 1; } message MSG2 { required string account = 0; required string symbol = 1; } -- You