Class AGCCloudDBZoneConfig

Developers can invoke this method to obtain the access property of Cloud DB zone on the device.

开发者调用此方法获取端侧 Cloud DB zone 的访问属性。

Developers can invoke this method to obtain the current Cloud DB zone storage space size on the device and determine whether to change the storage space size to properly allocate storage resources and improve resource utilization.

开发者调用此方法获取端侧当前 Cloud DB zone的存储空间大小，用于判断是否需要修改该存储空间大小，以便更合理的分配存储资源，提升资源利用率。

Developers can invoke this method to obtain the name of Cloud DB zone on the local device.

开发者调用此方法获取端侧 Cloud DB zone 的名称。

Developers can invoke this method to obtain data persistence information of Cloud DB zone from the device.

开发者调用此方法获取端侧 Cloud DB zone 的数据持久化信息。

Developers can invoke this method to obtain the data synchronization property of Cloud DB zone on the device.

开发者调用此方法获取端侧 Cloud DB zone 的数据同步属性。

Developers can invoke this method to check whether the Cloud DB zone is encrypted on the local device.

开发者调用此方法判断端侧 Cloud DB zone 是否加密。

Developers can invoke this method to set the storage space size of Cloud DB zone on the device. You can set the storage space size of Cloud DB zone to unlimited or a specific value. The value must be greater than or equal to 1 MB. If the value is not set or is invalid, the system uses the default value 100 MB. If the configured storage space of Cloud DB zone does not meet requirements, you can invoke this method to change the storage space of Cloud DB zone. After changing the storage space, you need to invoke the openCloudDBZone() method again for the change to take effect. You can invoke this method to set the storage space size only when the synchronization property of Cloud DB zone is in cache mode and the data persistency property is persistent storage. When the data stored in Cloud DB zone exceeds the threshold, the data that is not used for the longest time and has been synchronized will be deleted. The data that is not synchronized will not be deleted.

开发者调用此方法设置端侧 Cloud DB zone 的存储空间大小。 Cloud DB zone 存储空间大小可设置为无限制，也可设置具体的存储空间大小。设置具体值时，必须大于等于 1MB，如开发者未设置或者设置值无效时，系统会设置为默认值 100 MB。设置 Cloud DB zone 的存储空间大小后，如果存储空间不满足当前所需，可通过该方法修改 Cloud DB zone 的存储空间大小，修改存空间大小后需要重新 openCloudDBZone()，修改的值才会生效。 仅当 Cloud DB zone 的数据同步属性为缓存模式且数据持久化属性为持久化存储时，开发者才允许调用此方法设置存储空间大小。 当 Cloud DB zone 存储的数据超过设定的阈值时，会删除最久未使用且超过阈值范围已同步的数据，未同步的数据不会被删除。

Developers can invoke this method to set or modify the encryption key for data stored in the Cloud DB zone on the local device. The encryption key can be set only when Cloud DB zone data persistence is allowed. Data encryption is set by Cloud DB zone. The options are as follows: If values of key and rekey are both null or empty strings, Cloud DB zone does not need to be encrypted. If the value of key is not null or an empty string, and the value of rekey is null or an empty string, Cloud DB zone needs to be encrypted. If values of key and rekey is neither null nor an empty string, the original key of Cloud DB zone is changed to the new key. If the value of key is null or an empty string, and the value of rekey is not null or an empty string, an exception will occur.

开发者调用此方法设置或者修改端侧 Cloud DB zone 数据加密存储的密钥，仅在 Cloud DB zone 的数据允许持久化时支持设置加密密钥。数据加密以 Cloud DB zone 为粒度进行设置。根据请求参数值，分为如下四种情况： 当参数 key 的值为 null 或者空字符串，且参数 rekey 的值为 null 或者空字符串时，该 Cloud DB zone 不需要加密。 当参数 key 的值不为 null 或者空字符串，且参数 rekey 的值为 null 或者空字符串时，该 Cloud DB zone 需要加密。 当参数 key 的值不为 null 或者空字符串，且参数 rekey 的值不为 null 或者空字符串时，将该 Cloud DB zone 的原密钥修改为新密钥。 当参数 key 的值为 null 或者空字符串，且参数 rekey 的值不为 null 或者空字符串时，为非法入参，系统会抛异常。

Developers can invoke this method to set the data persistency property of Cloud DB zone on the local device. When the synchronization property of Cloud DB zone is in local mode, only persistent data storage is supported.

开发者调用此方法设置端侧 Cloud DB zone 的数据持久化属性。Cloud DB zone 的数据同步属性为本地模式时，只支持数据持久化存储。