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added in
version 1.1.0
belongs to Maven artifact android.arch.persistence.room:runtime:1.1.0-beta2
RoomDatabase.Callback
public
static
abstract
class
RoomDatabase.Callback
extends Object
| java.lang.Object
|
| ↳ |
android.arch.persistence.room.RoomDatabase.Callback
|
Callback for RoomDatabase.
Summary
Inherited methods |
|---|
From class
java.lang.Object
Object
|
clone()
|
boolean
|
equals(Object arg0)
|
void
|
finalize()
|
final
Class<?>
|
getClass()
|
int
|
hashCode()
|
final
void
|
notify()
|
final
void
|
notifyAll()
|
String
|
toString()
|
final
void
|
wait(long arg0, int arg1)
|
final
void
|
wait(long arg0)
|
final
void
|
wait()
|
|
Public constructors
RoomDatabase.Callback
RoomDatabase.Callback ()
Public methods
onCreate
void onCreate (SupportSQLiteDatabase db)
Called when the database is created for the first time. This is called after all the
tables are created.
| Parameters |
|---|
db |
SupportSQLiteDatabase: The database.
|
onOpen
void onOpen (SupportSQLiteDatabase db)
Called when the database has been opened.
| Parameters |
|---|
db |
SupportSQLiteDatabase: The database.
|
Annotations
Classes
Enums
Exceptions
Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2025-02-10 UTC.
[null,null,["Last updated 2025-02-10 UTC."],[],[],null,["# RoomDatabase.Callback\n\nadded in [version 1.1.0](/topic/libraries/support-library/revisions) \nbelongs to Maven artifact android.arch.persistence.room:runtime:1.1.0-beta2 \nSummary: [Ctors](#pubctors) \\| [Methods](#pubmethods) \\| [Inherited Methods](#inhmethods) \n\nRoomDatabase.Callback\n=====================\n\n| The `android.arch` Architecture Components packages are no longer maintained. They have been superseded by the corresponding [androidx.\\*](/jetpack/androidx/migrate) packages. See [androidx.room.RoomDatabase.Callback](/reference/androidx/room/RoomDatabase.Callback) instead.\n\n\n`\npublic\nstatic\n\nabstract\nclass\nRoomDatabase.Callback\n`\n\n\n`\n\nextends Object\n\n\n`\n\n`\n\n\n`\n\n|---|-----------------------------------------------------|\n| java.lang.Object ||\n| ↳ | android.arch.persistence.room.RoomDatabase.Callback |\n\n\u003cbr /\u003e\n\n*** ** * ** ***\n\nCallback for [RoomDatabase](/reference/android/arch/persistence/room/RoomDatabase).\n\nSummary\n-------\n\n| ### Public constructors ||\n|-------------------------------------------------------------------------------------------------------------------------|---|\n| ` `[RoomDatabase.Callback](/reference/android/arch/persistence/room/RoomDatabase.Callback#RoomDatabase.Callback())`() ` |\n\n| ### Public methods ||\n|---------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| ` void` | ` `[onCreate](/reference/android/arch/persistence/room/RoomDatabase.Callback#onCreate(android.arch.persistence.db.SupportSQLiteDatabase))`(`[SupportSQLiteDatabase](/reference/android/arch/persistence/db/SupportSQLiteDatabase)` db) ` Called when the database is created for the first time. |\n| ` void` | ` `[onOpen](/reference/android/arch/persistence/room/RoomDatabase.Callback#onOpen(android.arch.persistence.db.SupportSQLiteDatabase))`(`[SupportSQLiteDatabase](/reference/android/arch/persistence/db/SupportSQLiteDatabase)` db) ` Called when the database has been opened. |\n\n| ### Inherited methods |\n|-----------------------|---|\n| From class ` java.lang.Object ` |-------------------|-------------------------------| | ` Object` | ` clone() ` | | ` boolean` | ` equals(Object arg0) ` | | ` void` | ` finalize() ` | | ` final Class\u003c?\u003e` | ` getClass() ` | | ` int` | ` hashCode() ` | | ` final void` | ` notify() ` | | ` final void` | ` notifyAll() ` | | ` String` | ` toString() ` | | ` final void` | ` wait(long arg0, int arg1) ` | | ` final void` | ` wait(long arg0) ` | | ` final void` | ` wait() ` | ||\n\nPublic constructors\n-------------------\n\n### RoomDatabase.Callback\n\nadded in [version 1.1.0](/topic/libraries/support-library/revisions) \n\n```\nRoomDatabase.Callback ()\n```\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\nPublic methods\n--------------\n\n### onCreate\n\nadded in [version 1.1.0](/topic/libraries/support-library/revisions) \n\n```\nvoid onCreate (SupportSQLiteDatabase db)\n```\n\nCalled when the database is created for the first time. This is called after all the\ntables are created.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|------|-----------------------------------------------|\n| `db` | `SupportSQLiteDatabase`: The database. \u003cbr /\u003e |\n\n### onOpen\n\nadded in [version 1.1.0](/topic/libraries/support-library/revisions) \n\n```\nvoid onOpen (SupportSQLiteDatabase db)\n```\n\nCalled when the database has been opened.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|------|-----------------------------------------------|\n| `db` | `SupportSQLiteDatabase`: The database. \u003cbr /\u003e |\n\n-\n\n Annotations\n -----------\n\n - [ColumnInfo](/reference/android/arch/persistence/room/ColumnInfo)\n - [ColumnInfo.Collate](/reference/android/arch/persistence/room/ColumnInfo.Collate)\n - [ColumnInfo.SQLiteTypeAffinity](/reference/android/arch/persistence/room/ColumnInfo.SQLiteTypeAffinity)\n - [Dao](/reference/android/arch/persistence/room/Dao)\n - [Database](/reference/android/arch/persistence/room/Database)\n - [Delete](/reference/android/arch/persistence/room/Delete)\n - [Embedded](/reference/android/arch/persistence/room/Embedded)\n - [Entity](/reference/android/arch/persistence/room/Entity)\n - [ForeignKey](/reference/android/arch/persistence/room/ForeignKey)\n - [ForeignKey.Action](/reference/android/arch/persistence/room/ForeignKey.Action)\n - [Ignore](/reference/android/arch/persistence/room/Ignore)\n - [Index](/reference/android/arch/persistence/room)\n - [Insert](/reference/android/arch/persistence/room/Insert)\n - [OnConflictStrategy](/reference/android/arch/persistence/room/OnConflictStrategy)\n - [PrimaryKey](/reference/android/arch/persistence/room/PrimaryKey)\n - [Query](/reference/android/arch/persistence/room/Query)\n - [RawQuery](/reference/android/arch/persistence/room/RawQuery)\n - [Relation](/reference/android/arch/persistence/room/Relation)\n - [SkipQueryVerification](/reference/android/arch/persistence/room/SkipQueryVerification)\n - [Transaction](/reference/android/arch/persistence/room/Transaction)\n - [TypeConverter](/reference/android/arch/persistence/room/TypeConverter)\n - [TypeConverters](/reference/android/arch/persistence/room/TypeConverters)\n - [Update](/reference/android/arch/persistence/room/Update)\n-\n\n Classes\n -------\n\n - [DatabaseConfiguration](/reference/android/arch/persistence/room/DatabaseConfiguration)\n - [InvalidationTracker](/reference/android/arch/persistence/room/InvalidationTracker)\n - [InvalidationTracker.Observer](/reference/android/arch/persistence/room/InvalidationTracker.Observer)\n - [Room](/reference/android/arch/persistence/room/Room)\n - [RoomDatabase](/reference/android/arch/persistence/room/RoomDatabase)\n - [RoomDatabase.Builder](/reference/android/arch/persistence/room/RoomDatabase.Builder)\n - [RoomDatabase.Callback](/reference/android/arch/persistence/room/RoomDatabase.Callback)\n - [RoomDatabase.MigrationContainer](/reference/android/arch/persistence/room/RoomDatabase.MigrationContainer)\n - [RoomWarnings](/reference/android/arch/persistence/room/RoomWarnings)\n - [RxRoom](/reference/android/arch/persistence/room/RxRoom)\n-\n\n Enums\n -----\n\n - [RoomDatabase.JournalMode](/reference/android/arch/persistence/room/RoomDatabase.JournalMode)\n-\n\n Exceptions\n ----------\n\n - [EmptyResultSetException](/reference/android/arch/persistence/room/EmptyResultSetException)"]]
