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belongs to Maven artifact


public static final enum RoomDatabase.JournalMode
extends Enum<RoomDatabase.JournalMode>

   ↳ java.lang.Enum<>

Journal modes for SQLite database.

See also:


Enum values

RoomDatabase.JournalMode  AUTOMATIC

Let Room choose the journal mode. 

RoomDatabase.JournalMode  TRUNCATE

Truncate journal mode. 

RoomDatabase.JournalMode  WRITE_AHEAD_LOGGING

Write-Ahead Logging mode. 

Public methods

static RoomDatabase.JournalMode valueOf(String name)
static final JournalMode[] values()

Inherited methods

From class java.lang.Enum
From class java.lang.Object
From interface java.lang.Comparable

Enum values


RoomDatabase.JournalMode AUTOMATIC

Let Room choose the journal mode. This is the default value when no explicit value is specified.

The actual value will be TRUNCATE when the device runs API Level lower than 16 or it is a low-RAM device. Otherwise, WRITE_AHEAD_LOGGING will be used.


RoomDatabase.JournalMode TRUNCATE

Truncate journal mode.


RoomDatabase.JournalMode WRITE_AHEAD_LOGGING

Write-Ahead Logging mode.

Public methods


RoomDatabase.JournalMode valueOf (String name)

name String



JournalMode[] values ()


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