移動數據庫引擎Realm?v2.4.4 發布

jopen 7年前發布 | 6K 次閱讀 Realm 數據庫 移動數據庫

 

Realm 是一個跨平臺的移動數據庫引擎，可運行于手機、平板和可穿戴設備之上。于 2014 年 7 月發布，準確來說，它是專門為移動應用所設計的數據持久化解決方案之一。 Realm 可以輕松地移植到您的項目當中，并且絕大部分常用的功能（比如說插入、查詢等等）都可以用一行簡單的代碼輕松完成！ Realm 并不是對 Core Data 的簡單封裝，相反地， Realm 并不是基于 Core Data ，也不是基于 SQLite 所構建的。它擁有自己的數據庫存儲引擎，可以高效且快速地完成數據庫的構建操作。

更新日志

增強

  • Add (RLM)SyncPermission class to allow reviewing access permissions for
    Realms. Requires any edition of the Realm Object Server 1.1.0 or later.
  • Further reduce the number of files opened per thread-specific Realm on macOS,
    iOS and watchOS.

Bug修復

  • Fix a crash that could occur if new Realm instances were created while the
    application was exiting.
  • Fix a bug that could lead to bad version number errors when delivering
    change notifications.
  • Fix a potential use-after-free bug when checking validity of results.
  • Fix an issue where a sync session might not close properly if it receives
    an error while being torn down.
  • Fix some issues where a sync session might not reconnect to the server properly
    or get into an inconsistent state if revived after invalidation.
  • Fix an issue where notifications might not fire when the children of an
    observed object are changed.
  • Fix an issue where progress notifications on sync sessions might incorrectly
    report out-of-date values.
  • Fix an issue where multiple threads accessing encrypted data could result in
    corrupted data or crashes.
  • Fix an issue where certain LIKE queries could hang.
  • Fix an issue where -[RLMRealm writeCopyToURL:encryptionKey:error] could create
    a corrupt Realm file.
  • Fix an issue where incrementing a synced Realm's schema version without actually
    changing the schema could cause a crash.

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