google.api.field_behavior.proto Maven / Gradle / Ivy
// Copyright 2019 Google LLC.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
syntax = "proto3";
package google.api;
option go_package = "google.golang.org/genproto/googleapis/api/annotations;annotations";
option java_multiple_files = true;
option java_outer_classname = "FieldBehaviorProto";
option java_package = "com.google.api";
option objc_class_prefix = "GAPI";
import "google/protobuf/descriptor.proto";
extend google.protobuf.FieldOptions {
// A designation of a specific field behavior (required, output only, etc.)
// in protobuf messages.
//
// Examples:
//
// string name = 1 [(google.api.field_behavior) = REQUIRED];
// State state = 1 [(google.api.field_behavior) = OUTPUT_ONLY];
// google.protobuf.Duration ttl = 1
// [(google.api.field_behavior) = INPUT_ONLY];
// google.protobuf.Timestamp expire_time = 1
// [(google.api.field_behavior) = OUTPUT_ONLY,
// (google.api.field_behavior) = IMMUTABLE];
repeated google.api.FieldBehavior field_behavior = 1052;
}
// An indicator of the behavior of a given field (for example, that a field
// is required in requests, or given as output but ignored as input).
// This **does not** change the behavior in protocol buffers itself; it only
// denotes the behavior and may affect how API tooling handles the field.
//
// Note: This enum **may** receive new values in the future.
enum FieldBehavior {
// Conventional default for enums. Do not use this.
FIELD_BEHAVIOR_UNSPECIFIED = 0;
// Specifically denotes a field as optional.
// While all fields in protocol buffers are optional, this may be specified
// for emphasis if appropriate.
OPTIONAL = 1;
// Denotes a field as required.
// This indicates that the field **must** be provided as part of the request,
// and failure to do so will cause an error (usually `INVALID_ARGUMENT`).
REQUIRED = 2;
// Denotes a field as output only.
// This indicates that the field is provided in responses, but including the
// field in a request does nothing (the server *must* ignore it and
// *must not* throw an error as a result of the field's presence).
OUTPUT_ONLY = 3;
// Denotes a field as input only.
// This indicates that the field is provided in requests, and the
// corresponding field is not included in output.
INPUT_ONLY = 4;
// Denotes a field as immutable.
// This indicates that the field may be set once in a request to create a
// resource, but may not be changed thereafter.
IMMUTABLE = 5;
}