LocalDatabase class abstract

Allows access to local storage on the device. Implementations of this class should be able to store and retrieve data from the device's local storage. This is mainly used to store data via actions for the SDK.

This abstraction provides access to the local storage via a key-value store. The key is a string and the value is an object. The object can be any primitive type or a list or map of primitive types depending on the implementation.

Inheritance

• Object
• ChangeNotifier
• LocalDatabase

Implementers

• HiveLocalDatabase

Constructors

LocalDatabase({required String identifier})

Creates a LocalDatabase with the given identifier.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

hasListeners → bool

Whether any listeners are currently registered.

no setter, inherited

identifier → String

The identifier for the storage. This is used to identify the storage from its project id.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

addListener(VoidCallback listener) → void

Register a closure to be called when the object changes.

inherited

clear() → Future<void>

Clears all the data in the storage.

containsKey(String key) → bool

Whether or not the storage contains the given key.

dispose() → void

Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).

override

get(String key, {Object? defaultValue}) → Object?

Returns the value stored in the storage with the given key. If the key is not found or has a null value, then the defaultValue is returned.

getAll() → Map<String, dynamic>

Returns all the data in the storage as a map.

getNotifier(String? key) → Listenable

Returns a _StorageListenable that notifies when the value for the given key in the storage changes. These listeners are automatically disposed when the storage is closed using close method.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

notifyListeners() → void

Call all the registered listeners.

inherited

put(String key, Object? value) → Future<void>

Stores the given value in the storage with the given key.

remove(String key) → Future<void>

Removes the value stored in the storage with the given key.

removeListener(VoidCallback listener) → void

Remove a previously registered closure from the list of closures that are notified when the object changes.

inherited

reset() → void

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited