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// 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
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
syntax = "proto3";
package google.firestore.v1;
import "google/protobuf/timestamp.proto";
import "google/api/annotations.proto";
option csharp_namespace = "Google.Cloud.Firestore.V1";
option go_package = ";firestore";
option java_multiple_files = true;
option java_outer_classname = "CommonProto";
option java_package = "";
option objc_class_prefix = "GCFS";
option php_namespace = "Google\\Cloud\\Firestore\\V1";
// A set of field paths on a document.
// Used to restrict a get or update operation on a document to a subset of its
// fields.
// This is different from standard field masks, as this is always scoped to a
// [Document][google.firestore.v1.Document], and takes in account the dynamic nature of [Value][google.firestore.v1.Value].
message DocumentMask {
// The list of field paths in the mask. See [Document.fields][google.firestore.v1.Document.fields] for a field
// path syntax reference.
repeated string field_paths = 1;
// A precondition on a document, used for conditional operations.
message Precondition {
// The type of precondition.
oneof condition_type {
// When set to `true`, the target document must exist.
// When set to `false`, the target document must not exist.
bool exists = 1;
// When set, the target document must exist and have been last updated at
// that time.
google.protobuf.Timestamp update_time = 2;
// Options for creating a new transaction.
message TransactionOptions {
// Options for a transaction that can be used to read and write documents.
message ReadWrite {
// An optional transaction to retry.
bytes retry_transaction = 1;
// Options for a transaction that can only be used to read documents.
message ReadOnly {
// The consistency mode for this transaction. If not set, defaults to strong
// consistency.
oneof consistency_selector {
// Reads documents at the given time.
// This may not be older than 60 seconds.
google.protobuf.Timestamp read_time = 2;
// The mode of the transaction.
oneof mode {
// The transaction can only be used for read operations.
ReadOnly read_only = 2;
// The transaction can be used for both read and write operations.
ReadWrite read_write = 3;
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