Common patterns when building Room DB

Dmitry Klokov·2021년 1월 22일
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ANDROID-KOTLIN-ADVANCED

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Pattern 1


Inside abstract class, private var instance: AppDatabase? with @Volatile keyword.

Pattern 2


Outside abstract class, private lateinit var INSTANCE: TitleDatabase.

Note: getDatabase() checks whether INSTANCE has been initialized during runtime using property reflection(::INSTANCE.isInitialized).

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