FlagProvider class abstract interface

Abstract backend contract for all flag / remote-config providers.

Implementations must supply typed accessors and lifecycle methods. FlagService delegates all reads through this interface, so providers are interchangeable (Firebase, MongoDB, local map, cached wrapper, etc.).

Implementers

Properties

hashCode → int
The hash code for this object.
no setterinherited
lastFetchedAt → DateTime?
The UTC time of the last successful fetch, or null if never fetched.
no setter
providerId → String
A stable identifier for this provider (e.g. 'firebase', 'mongo').
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

getBool(String key, {required bool defaultValue}) → bool
Returns a boolean flag value.
getDouble(String key, {required double defaultValue}) → double
Returns a double flag value.
getInt(String key, {required int defaultValue}) → int
Returns an integer flag value.
getJson(String key, {required Map<String, dynamic> defaultValue}) → Map<String, dynamic>
Returns a JSON object flag value.
getString(String key, {required String defaultValue}) → String
Returns a string flag value.
getValue<T>(String key, T defaultValue) → T
Returns the value for key, falling back to defaultValue if the key does not exist or has an incompatible type.
initialize() → Future<void>
Initialises the provider (e.g. fetch + activate remote config).
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
refresh() → Future<void>
Requests a fresh value set from the remote source.
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited