DatabaseProvider

Artifact: androidx.media3:media3-database

Kotlin |Java

@UnstableApi
public interface DatabaseProvider

Known direct subclasses

DefaultDatabaseProvider, StandaloneDatabaseProvider

`DefaultDatabaseProvider`	A `DatabaseProvider` that provides instances obtained from a `SQLiteOpenHelper`.
`StandaloneDatabaseProvider`	An `SQLiteOpenHelper` that provides instances of a standalone database.

Known indirect subclasses

ExoDatabaseProvider

ExoDatabaseProvider

This class is deprecated.

Use StandaloneDatabaseProvider.

Provides SQLiteDatabase instances to media library components, which may read and write tables prefixed with TABLE_PREFIX.

Summary

Constants
`default static final String`	`TABLE_PREFIX = "ExoPlayer"` Prefix for tables that can be read and written by media library components.

Public methods
`abstract SQLiteDatabase`	`getReadableDatabase()` Creates and/or opens a database.
`abstract SQLiteDatabase`	`getWritableDatabase()` Creates and/or opens a database that will be used for reading and writing.

Constants

TABLE_PREFIX

default static final String TABLE_PREFIX = "ExoPlayer"

Prefix for tables that can be read and written by media library components.

Public methods

getReadableDatabase

abstract SQLiteDatabase getReadableDatabase()

Creates and/or opens a database. This will be the same object returned by getWritableDatabase unless some problem, such as a full disk, requires the database to be opened read-only. In that case, a read-only database object will be returned. If the problem is fixed, a future call to getWritableDatabase may succeed, in which case the read-only database object will be closed and the read/write object will be returned in the future.

Once opened successfully, the database is cached, so you can call this method every time you need to read from the database.

Returns
`SQLiteDatabase`	A database object valid until `getWritableDatabase` is called.

Throws
`android.database.sqlite.SQLiteException`	If the database cannot be opened.

getWritableDatabase

abstract SQLiteDatabase getWritableDatabase()

Creates and/or opens a database that will be used for reading and writing.

Once opened successfully, the database is cached, so you can call this method every time you need to write to the database. Errors such as bad permissions or a full disk may cause this method to fail, but future attempts may succeed if the problem is fixed.

Returns
`SQLiteDatabase`	A read/write database object.

Throws
`android.database.sqlite.SQLiteException`	If the database cannot be opened for writing.