3 * Copyright (c) 2020 Project CHIP Authors
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.
18 #import <Foundation/Foundation.h>
20 NS_ASSUME_NONNULL_BEGIN
22 typedef void (^SendKeyValue)(NSString * key, NSString * value);
23 typedef void (^CHIPSendSetStatus)(NSString * key, NSError * status);
24 typedef void (^CHIPSendDeleteStatus)(NSString * key, NSError * status);
27 * The protocol definition for the CHIPPersistenStorageDelegate
29 * All delegate methods will be called on the supplied Delegate Queue.
31 @protocol CHIPPersistentStorageDelegate <NSObject>
35 * Get the value for the given key
38 - (void)CHIPGetKeyValue:(NSString *)key handler:(SendKeyValue)completionHandler;
41 * Get the value for the given key
44 - (NSString *)CHIPGetKeyValue:(NSString *)key;
47 * Set the value of the key to the given value
50 - (void)CHIPSetKeyValue:(NSString *)key value:(NSString *)value handler:(CHIPSendSetStatus)completionHandler;
53 * Delete the key and corresponding value
56 - (void)CHIPDeleteKeyValue:(NSString *)key handler:(CHIPSendDeleteStatus)completionHandler;