On Tuesday, 24 November 2015 19:36:11 UTC, Teddy Zhang wrote: > > How do I store a HashSet<EnumType> with protobuf? >
Have a repeated field of the enum type, so that you get a collection - and then make sure you transform it into a set in your code. proto doesn't have the notion of a set as such. > Regarding the proto2 implementation, if I defined my enum as 1, 2, 4 etc, > and I set the enum to value 3 (combination of 1 & 2), it serialize the > fields correctly. But when deserialize, I get value 0 back (as 3 is not in > enum). > Yes, because that's the defined behaviour in proto2 for an undefined value. You're trying to use proto enums in a way that they weren't designed for, which is never going to be a pleasant experience. It's not about being a "combination" of values - proto doesn't have any such concept. It's just a value which isn't defined. Jon -- You received this message because you are subscribed to the Google Groups "Protocol Buffers" group. To unsubscribe from this group and stop receiving emails from it, send an email to protobuf+unsubscr...@googlegroups.com. To post to this group, send email to protobuf@googlegroups.com. Visit this group at http://groups.google.com/group/protobuf. For more options, visit https://groups.google.com/d/optout.
