Add AutoIndex

service/datastore/testable.go

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package datastore
 
 // TestingSnapshot is an opaque implementation-defined snapshot type.
 type TestingSnapshot interface {
         ImATestingSnapshot()
 }
@@ skipping 31 matching lines @@
         // means commit succeeds on the first attempt (no retries).
         SetTransactionRetryCount(int)
 
         // Consistent controls the eventual consistency behavior of the testing
         // implementation. If it is called with true, then this datastore
         // implementation will be always-consistent, instead of eventually-consistent.
         //
         // By default the datastore is eventually consistent, and you must call
         // CatchupIndexes or use Take/SetIndexSnapshot to manipulate the index state.
         Consistent(always bool)
+
+        // AutoIndex controls the index creation behavior. If it is set to true, then
+        // any time the datastore encounters a missing index, it will silently create
+        // one and allow the query to succeed. If it's false, then the query will
+        // return an error describing the index which could be added with AddIndexes.
+        //
+        // By default this is false.
+        AutoIndex(bool)
 }