1 ////////////////////////////////////////////////////////////////////////////
3 // Copyright 2017 Realm Inc.
5 // Licensed under the Apache License, Version 2.0 (the "License");
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
9 // http://www.apache.org/licenses/LICENSE-2.0
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
17 ////////////////////////////////////////////////////////////////////////////
19 #import <Foundation/Foundation.h>
26 A callback used to vend the results of a partial sync fetch.
28 typedef void(^RLMPartialSyncFetchCallback)(RLMResults * _Nullable results, NSError * _Nullable error);
30 NS_ASSUME_NONNULL_BEGIN
33 @interface RLMRealm (Sync)
36 If the Realm is a partially synchronized Realm, fetch and synchronize the objects
37 of a given object type that match the given query (in string format).
39 The results will be returned asynchronously in the callback.
40 Use `-[RLMResults addNotificationBlock:]` to be notified to changes to the set of
43 @warning Partial synchronization is a tech preview. Its APIs are subject to change.
45 - (void)subscribeToObjects:(Class)type where:(NSString *)query callback:(RLMPartialSyncFetchCallback)callback;