Lessons learned from Protocol Buffers, part 1: messages, builders and immutability

re: Lessons learned from Protocol Buffers, part 1: messages, builders and immutability

skeet — Sun, 15 Mar 2009 20:25:34 GMT

(Also cc'd)

Once you've loaded the list into memory, you should use some sort of Set type (e.g. HashSet<T> in .NET 3.5). You'll want to specify some way of identifying that an object "the same as" another, unless you want to use the default implementation of Equals/GetHashCode in Protocol Buffers, which compares every field.

At this point it's not really a Protocol Buffers problem so much as normal .NET collections classes.

re: Lessons learned from Protocol Buffers, part 1: messages, builders and immutability

Lion King — Fri, 13 Mar 2009 03:58:30 GMT

Thank you so much!

This morning, I received your email and tried to build my own class. It works perfectly :X

And, I have another question, could you please answer it to me :X ( I think you know it )

I have a list of my class so long, so large ( About 2 million or more objects ).So my problem here is when I load this list into memory ( using PB of course ), and then, I wanna add some object and this new object must not be appear in my list. That means each object in my list is unique!

Do you have any solution for this case ?

Thanks again :)

re: Lessons learned from Protocol Buffers, part 1: messages, builders and immutability

skeet — Thu, 12 Mar 2009 17:37:43 GMT

Darn it. URL got mangled. Try this:

code.google.com/.../GettingStarted

re: Lessons learned from Protocol Buffers, part 1: messages, builders and immutability

skeet — Thu, 12 Mar 2009 17:17:51 GMT

(I'll copy this by email.)

The project's home page is now code.google.com/.../protobuf-csharp-port

We no longer generate the code directly from protoc - instead, protoc compiles the .proto file into a binary version, and ProtoGen.exe generates the code.

See code.google.com/.../protobuf-csharp-portwiki/GettingStarted for more information and a tutorial. (I must check it still actually works...)

re: Lessons learned from Protocol Buffers, part 1: messages, builders and immutability

Lion King — Thu, 12 Mar 2009 16:40:02 GMT

Hi man!

I'm new with PB ( Knew it yesterday ) and finally I found a GREAT project for porting this protocol to C#. But I dont know how to run Protoc to generate .cs file ?

What does parameters here ? Could you please give me some advise :)

Thank u a lot :X

P/s : You can send your answer via my email : cnttvn.com@gmail.com. It'll be more better.

Lessons learned from Protocol Buffers, part 3: generic type relationships

Jon Skeet: Coding Blog — Fri, 29 Aug 2008 18:48:52 GMT

In part 2 of this series we saw how the message and builder interfaces were self-referential in order