程序包 ohos.data.distributed.common

接口 KvStoreObserver

public interface KvStoreObserver

Listens for data changes in the KvStore database.

This instance is registered as an input parameter for the subscribe method, which is used to subscribe to KvStore. This method is called upon data changes in KvStore.

从以下版本开始:

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方法概要

限定符和类型	方法	说明
default void	onChange(ChangeNotification changeNotification)	Receives notifications of data changes in the KvStore database.

方法详细资料

onChange

default void onChange(ChangeNotification changeNotification)

Receives notifications of data changes in the KvStore database.

You must override this method on the client to receive data change notifications from SingleKvStore and DeviceKvStore databases.

参数:

changeNotification - Indicates all data changes, including data insertion, deletion, and update. For details, see ChangeNotification.

从以下版本开始:

1