How to store a single byte in a protocol buffer?

Question

my java class is below,

public final class TraceOptions {
private final byte options;

private TraceOptions(byte options) {
    this.options = options;
}

What type in protobuffer 3 should I put here?

message TraceOptions {
  ? traceOptions = 1;
 }

Does this answer your question? [How to encode byte\[\] in proto buffs](https://stackoverflow.com/questions/8421050/how-to-encode-byte-in-proto-buffs) — Nick Chapman, Jul 19 '21 at 17:23

Nick Chapman · Accepted Answer · 2019-03-28T18:38:52.603

1

Are you just looking for bytes? It's listed under the Scalar Value Types in the docs. It's typically used to store a variable length number of bytes, so not sure on the efficiency of using it to store a single byte.

The type uint32 uses a variable length encoding, so that's probably the most efficient thing you can do.

If you look at how integers are encoded in the docs here you'll see that using an int32 is likely your best bet.

edited Mar 28 '19 at 18:38

answered Mar 28 '19 at 14:55

Nick Chapman

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I am looking for byte, not for bytes – zheyi yi Mar 28 '19 at 15:41
@zheyiyi then as noted by Prasath and Dylan you will need to use something else, there is no single byte option. – Nick Chapman Mar 28 '19 at 15:54
@zheyiyi updated answer, the `int*` types (except for fixedint) are variable length encoded so that is probably your best bet. – Nick Chapman Mar 28 '19 at 15:56

How to store a single byte in a protocol buffer?

1 Answers1