DatabaseConfiguration

public final class DatabaseConfiguration

Configuration class for a RoomDatabase.

Summary

Public fields
final boolean
final boolean
final boolean
final @NonNull List<@NonNull AutoMigrationSpec>
final List<@NonNull RoomDatabase.Callback>
final @NonNull Context
final String
final File
final Callable<@NonNull InputStream>
final @NonNull RoomDatabase.JournalMode
final @NonNull RoomDatabase.MigrationContainer
final boolean

If true, table invalidation in an instance of RoomDatabase is broadcast and synchronized with other instances of the same RoomDatabase file, including those in a separate process.
final String
final RoomDatabase.PrepackagedDatabaseCallback
final CoroutineContext
final @NonNull Executor
final boolean
final SQLiteDriver
final SupportSQLiteOpenHelper.Factory
final @NonNull Executor
final @NonNull List<@NonNull Object>

Public methods
boolean
isMigrationRequired(int fromVersion, int toVersion)

Returns whether a migration is required between two versions.
boolean

This method is deprecated. Use [isMigrationRequired(int, int)] which takes [allowDestructiveMigrationOnDowngrade] into account.

Public fields

allowDestructiveMigrationForAllTables

Added in 2.7.0-alpha03
public final boolean allowDestructiveMigrationForAllTables

allowDestructiveMigrationOnDowngrade

Added in 2.1.0
public final boolean allowDestructiveMigrationOnDowngrade

allowMainThreadQueries

Added in 2.0.0
public final boolean allowMainThreadQueries

autoMigrationSpecs

Added in 2.4.0
public final @NonNull List<@NonNull AutoMigrationSpec> autoMigrationSpecs

callbacks

Added in 2.0.0
public final List<@NonNull RoomDatabase.Callback> callbacks

context

Added in 2.0.0
public final @NonNull Context context

copyFromAssetPath

Added in 2.2.0
public final String copyFromAssetPath

copyFromFile

Added in 2.2.0
public final File copyFromFile

copyFromInputStream

Added in 2.3.0
public final Callable<@NonNull InputStream> copyFromInputStream

journalMode

Added in 2.0.0
public final @NonNull RoomDatabase.JournalMode journalMode

migrationContainer

Added in 2.0.0
public final @NonNull RoomDatabase.MigrationContainer migrationContainer

multiInstanceInvalidation

Added in 2.1.0
public final boolean multiInstanceInvalidation

If true, table invalidation in an instance of RoomDatabase is broadcast and synchronized with other instances of the same RoomDatabase file, including those in a separate process.

name

Added in 2.0.0
public final String name

prepackagedDatabaseCallback

Added in 2.3.0
public final RoomDatabase.PrepackagedDatabaseCallback prepackagedDatabaseCallback

queryCoroutineContext

Added in 2.7.0-alpha03
public final CoroutineContext queryCoroutineContext

queryExecutor

Added in 2.0.0
public final @NonNull Executor queryExecutor

requireMigration

Added in 2.0.0
public final boolean requireMigration

sqliteDriver

Added in 2.7.0-alpha03
public final SQLiteDriver sqliteDriver

sqliteOpenHelperFactory

Added in 2.0.0
public final SupportSQLiteOpenHelper.Factory sqliteOpenHelperFactory

transactionExecutor

Added in 2.1.0
public final @NonNull Executor transactionExecutor

typeConverters

Added in 2.3.0
public final @NonNull List<@NonNull Object> typeConverters

Public methods

isMigrationRequired

Added in 2.1.0
public boolean isMigrationRequired(int fromVersion, int toVersion)

Returns whether a migration is required between two versions.

Parameters
int fromVersion

The old schema version.
int toVersion

The new schema version.
Returns
boolean

True if a valid migration is required, false otherwise.

isMigrationRequiredFrom

Added in 2.0.0
Deprecated in 2.1.0
public boolean isMigrationRequiredFrom(int version)

Returns whether a migration is required from the specified version.

Parameters
int version

The schema version.
Returns
boolean

True if a valid migration is required, false otherwise.