Realm class Realm

A Realm instance represents a Realm database.

Implemented types

• Finalizable

Constructors

Realm(Configuration config)

Opens a Realm using a Configuration object.

Properties

config → Configuration

The Configuration object used to open this Realm

final

dynamic → DynamicRealm

An object encompassing this Realm instance's dynamic API.

late, final

hashCode → int

The hash code for this object.

no setter, inherited

isClosed → bool

Checks whether the Realm is closed.

no setter

isFrozen → bool

Gets a value indicating whether this Realm is frozen. Frozen Realms are immutable and will not update when writes are made to the database.

late, final

isInTransaction → bool

Checks whether the Realm is in write transaction.

no setter

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

schema ↔ RealmSchema

The schema of this Realm. If the Configuration was created with a non-empty list of schemas, this will match the collection. Otherwise, the schema will be read from the file.

late, final

subscriptions → SubscriptionSet

The active SubscriptionSet for this Realm

no setter

syncSession → Session

The Session for this Realm. The sync session is responsible for two-way synchronization with MongoDB Atlas. If the Realm is not synchronized, accessing this property will throw.

no setter

Methods

add<T extends RealmObject>(T object, {bool update = false}) → T

Adds a RealmObject to the Realm.

addAll<T extends RealmObject>(Iterable<T> items, {bool update = false}) → void

Adds a collection RealmObjects to this Realm.

all<T extends RealmObject>() → RealmResults<T>

Returns all RealmObjects of type T in the Realm

beginWrite() → Transaction

Begins a write transaction for this Realm.

beginWriteAsync([CancellationToken? cancellationToken]) → Future<Transaction>

Asynchronously begins a write transaction for this Realm. You can supply a CancellationToken to cancel the operation.

close() → void

Closes the Realm.

delete<T extends RealmObjectBase>(T object) → void

Deletes a RealmObject from this Realm.

deleteAll<T extends RealmObject>() → void

Deletes all RealmObjects of type T in the Realm

deleteMany<T extends RealmObject>(Iterable<T> items) → void

Deletes many RealmObjects from this Realm.

find<T extends RealmObject>(Object? primaryKey) → T?

Fast lookup for a RealmObject with the specified primaryKey.

freeze() → Realm

Returns a frozen (immutable) snapshot of this Realm.

ingest<T extends AsymmetricObject>(T object) → void

Ingest an AsymmetricObject to the Realm.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

query<T extends RealmObject>(String query, [List<Object?> args = const []]) → RealmResults<T>

Returns all RealmObjects that match the specified query.

refresh() → bool

Update the Realm instance and outstanding objects to point to the most recent persisted version.

refreshAsync() → Future<bool>

Returns a Future that will complete when the Realm is refreshed to the version which is the latest version at the time when this method is called.

toString() → String

A string representation of this object.

inherited

write<T>(T writeCallback()) → T

Synchronously calls the provided callback inside a write transaction.

writeAsync<T>(T writeCallback(), [CancellationToken? cancellationToken]) → Future<T>

Executes the provided writeCallback in a temporary write transaction. Both acquiring the write lock and committing the transaction will be done asynchronously.

writeCopy(Configuration config) → void

Writes a compacted copy of the Realm to the path in the specified config. If the configuration object has non-null Configuration.encryptionKey, the copy will be encrypted with that key.

Operators

operator ==(Object other) → bool

The equality operator.

override

Static Methods

compact(Configuration config) → bool

Compacts a Realm file. A Realm file usually contains free/unused space.

deleteRealm(String path) → void

Deletes all files associated with a Realm located at given path

exists(String path) → Future<bool>

Checks whether a Realm exists at path.

existsSync(String path) → bool

Synchronously checks whether a Realm exists at path

open(Configuration config, {CancellationToken? cancellationToken, ProgressCallback? onProgressCallback}) → Future<Realm>

A method for asynchronously opening a Realm.

shutdown() → void

Used to shutdown Realm and allow the process to correctly release native resources and exit.

Constants

logger → const RealmLogger

The logger that will emit log messages from the database and sync operations. To receive log messages, use the RealmLogger.onRecord stream.