DefaultObjectProvider<T> class

Default implementation of ObjectProvider in Jetleaf.

This class is responsible for retrieving pods (objects) from the PodFactory and exposing them through a consistent provider interface.

It supports both direct retrieval (via get) and streaming (via stream).

Example

final provider = DefaultObjectProvider<MyService>(
  'myServicePod',
  factory,
  [ObjectHolder(MyService())],
);

// Retrieve an object
final holder = await provider.get();
print(holder.object);

// Stream objects
await for (final obj in provider.stream()) {
  print('Received: ${obj.object}');
}

This is part of Jetleaf – a framework which developers can use to build web applications.

Inheritance
Annotations
  • @Generic.new(DefaultObjectProvider)

Constructors

DefaultObjectProvider(String _podName, PodFactory _factory, List<ObjectHolder<T>> objects)
Default implementation of ObjectProvider in Jetleaf.

Properties

hashCode → int
The hash code for this object.
no setterinherited
isEmpty → bool
Returns true if no objects are available.
no setterinherited
isNotEmpty → bool
Returns true if at least one object is available.
no setterinherited
objects → List<ObjectHolder<T>>
The list of pre-registered ObjectHolder instances.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

chain<R>(ObjectFactory<R> nextFactory(T)) → Future<ObjectFactory<R>>
Creates a new ObjectFactory that uses this factory's output as input to another factory.
inherited
copyWith({ObjectFactoryFunction<T>? creator}) → ObjectFactory<T>
Creates a copy of this ObjectFactory with a new creator function.
inherited
createMultiple(int count) → Future<List<T>>
Creates multiple instances of type T in a single call.
inherited
get([List<ArgumentValue>? args]) → FutureOr<ObjectHolder<T>>
Retrieves the single object instance or throws if none or more than one found.
override
getIfAvailable([Supplier<ObjectHolder<T>>? supplier]) → Future<ObjectHolder<T>?>
Retrieves the object if available, or returns null if none exist.
inherited
getIfUnique([Supplier<ObjectHolder<T>>? supplier]) → Future<ObjectHolder<T>?>
Retrieves the object only if exactly one instance exists, or returns null.
inherited
ifAvailable(Consumer<ObjectHolder<T>> consumer) → Future<void>
Executes consumer if the object is available.
inherited
ifUnique(Consumer<ObjectHolder<T>> consumer) → Future<void>
Executes consumer only if exactly one instance is available.
inherited
iterator() → Iterator<T>
Returns an iterator over all available objects.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
stream() → GenericStream<ObjectHolder<T>>
Returns a GenericStream of all available objects.
override
toList() → List<T>
Returns a list of all available objects.
inherited
toString() → String
Returns a string representation of this ObjectFactory.
inherited
withSideEffect(void sideEffect(T)) → Future<ObjectFactory<T>>
Creates a new factory that performs a side effect after object creation.
inherited

Operators

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