On Oct 27, 12:46 am, Evan Jones <ev...@mit.edu> wrote: > On Oct 24, 2009, at 13:46 , Michael <michael...@hmamail.com> wrote: > > > It good becuase it allows you to record positions in message streams > > for inplace editing of things like transaction id, and inplace > > persitience of parts of messages without the need for a byte copy. > > I'm confused about how you are going to do an in place update. Since > protocol buffers are variable length, wouldn't this fail in many > cases? But I get being able to pull out parts of messages without a > copy.
Yes, but proto-buf have fixed32 and fixed64. I would have to use fixed64 for a id for this to work, but an extra 6-7 bytes in big message is worth the effort compared to serializing and de-serializing. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Protocol Buffers" group. To post to this group, send email to protobuf@googlegroups.com To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/protobuf?hl=en -~----------~----~----~----~------~----~------~--~---
