程序包 ohos.data.distributed.common

类 ChangeNotification

java.lang.Object

ohos.data.distributed.common.ChangeNotification

public class ChangeNotification
extends Object

Receives notifications of all data changes, including data insertion, update, and deletion.

If you have subscribed to KvStore, you will receive data change notifications and obtain the changed data from the parameters in callback methods upon data insertion, update, or deletion.

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SystemCapability

SystemCapability.Data#DATA_DISTRIBUTEDDATAMGR

方法概要

限定符和类型	方法	说明
List<Entry>	getDeleteEntries()	Obtains data deletion records.
String	getDeviceId()	Obtains the ID of the device whose data has changed.
List<Entry>	getInsertEntries()	Obtains data insertion records.
List<Entry>	getUpdateEntries()	Obtains data update records.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

方法详细资料

getInsertEntries

public List<Entry> getInsertEntries()

Obtains data insertion records.

返回:

Returns data insertion records.

从以下版本开始:

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getUpdateEntries

public List<Entry> getUpdateEntries()

Obtains data update records.

返回:

Returns data update records.

从以下版本开始:

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getDeleteEntries

public List<Entry> getDeleteEntries()

Obtains data deletion records.

返回:

Returns data deletion records.

从以下版本开始:

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getDeviceId

public String getDeviceId()

Obtains the ID of the device whose data has changed.

返回:

Returns the device ID.

从以下版本开始:

4