diff options
Diffstat (limited to 'src/google/protobuf/any.proto')
| -rw-r--r-- | src/google/protobuf/any.proto | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/src/google/protobuf/any.proto b/src/google/protobuf/any.proto index c7486676..49329425 100644 --- a/src/google/protobuf/any.proto +++ b/src/google/protobuf/any.proto @@ -120,17 +120,18 @@ option objc_class_prefix = "GPB"; // } // message Any { - // A URL/resource name whose content describes the type of the - // serialized protocol buffer message. + // A URL/resource name that uniquely identifies the type of the serialized + // protocol buffer message. The last segment of the URL's path must represent + // the fully qualified name of the type (as in + // `path/google.protobuf.Duration`). The name should be in a canonical form + // (e.g., leading "." is not accepted). // - // For URLs which use the scheme `http`, `https`, or no scheme, the - // following restrictions and interpretations apply: + // In practice, teams usually precompile into the binary all types that they + // expect it to use in the context of Any. However, for URLs which use the + // scheme `http`, `https`, or no scheme, one can optionally set up a type + // server that maps type URLs to message definitions as follows: // // * If no scheme is provided, `https` is assumed. - // * The last segment of the URL's path must represent the fully - // qualified name of the type (as in `path/google.protobuf.Duration`). - // The name should be in a canonical form (e.g., leading "." is - // not accepted). // * An HTTP GET on the URL must yield a [google.protobuf.Type][] // value in binary format, or produce an error. // * Applications are allowed to cache lookup results based on the @@ -139,6 +140,10 @@ message Any { // on changes to types. (Use versioned type names to manage // breaking changes.) // + // Note: this functionality is not currently available in the official + // protobuf release, and it is not used for type URLs beginning with + // type.googleapis.com. + // // Schemes other than `http`, `https` (or the empty scheme) might be // used with implementation specific semantics. // |