harmony 鸿蒙ArkData Changelog
ArkData Changelog
cl.kv_store.1 Change in the Error Code Returned by getKVStore()
Access Level
Public API
Reason for the Change
The error code returned is changed from 15100003 to 15100006 when the database file cannot be accessed due to the device being locked.
Change Impact
This change is a non-compatible change.
Before the change:
The attempt to access files in the /el2, /el3, or /el4 directory when the device is not unlocked will trigger error 15100003 Database corrupted.
After the change:
The attempt to access files in the /el2, /el3, or /el4 directory when the device is not unlocked will trigger error 15100006 Unable to open the database file.
Start API Level
9
Change Since
OpenHarmony SDK 5.0.0.51
Key API/Component Changes
getKVStore() of distributedKVStore
Adaptation Guide
Files in the /el2, /el3, or /el4 directory cannot be accessed when the device is locked. Calling getKVStore() will return error 15100006 Unable to open the database file when the device is locked. This error code does not affect applications. You can determine whether to capture this error code. If this error code is captured, the service can access the database file at appropriate time, for example, when the device is unlocked.
cl.kv_store.2 Change in the Error Code Returned by backup() and restore()
Access Level
Public API
Reason for the Change
Due to an implementation bug, calling backup() will trigger a successful backup operation even when the database file is corrupted, generating a backup of the corrupted file.
Due to an implementation bug, calling restore() will trigger a successful restore operation even when the database file is corrupted, resulting in a corrupted file.
Change Impact
This change is a non-compatible change.
Before the change:
Calling backup() will trigger a successful backup operation even when the database file is corrupted, generating a backup of the corrupted file. Calling restore() will trigger a successful restore operation even when the database file is corrupted, resulting in a corrupted file.
Before the change:
If the database file is corrupted, calling backup() or restore() will return error 15100003 Database corrupted.
Start API Level
9
Change Since
OpenHarmony SDK 5.0.0.51
Key API/Component Changes
backup() and restore() of distributedKVStore
Adaptation Guide
If the database file is corrupted, calling backup() will return error 15100003 Database corrupted. The backup operation fails, and the service should proceed based on the error code.
If the database file is corrupted, calling restore() will return error 15100003 Database corrupted. The restore operation fails, and the service should regenerate data and write the data to the database file.
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