1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #ifndef OHOS_AAFWK_DATA_ABILITY_OBSERVER_INTERFACE_H 16 #define OHOS_AAFWK_DATA_ABILITY_OBSERVER_INTERFACE_H 17 18 #include <iremote_broker.h> 19 #include "uri.h" 20 21 namespace OHOS { 22 namespace AAFwk { 23 24 class IDataAbilityObserver : public OHOS::IRemoteBroker { 25 public: 26 DECLARE_INTERFACE_DESCRIPTOR(u"ohos.aafwk.DataAbilityObserver"); 27 28 enum { 29 DATA_ABILITY_OBSERVER_CHANGE, 30 }; 31 32 /** 33 * @brief Called back to notify that the data being observed has changed. 34 * 35 * @param uri Indicates the path of the data to operate. 36 */ 37 virtual void OnChange() = 0; 38 }; 39 40 } // namespace AAFwk 41 } // namespace OHOS 42 #endif // OHOS_AAFWK_DATA_ABILITY_OBSERVER_INTERFACE_H