Mediator class

An implementation for the architectural mediator pattern, with CQRS support.

Future<void> main() async {
  // Create a new mediator, this should only be needed once per your application.
  Mediator mediator = Mediator();

  // Register the command handler for its command type.
  // This will hopefully be code-generated later on.
  mediator.registerCommand(GetAsStringCommandHandler());

  // Create and run your command.
  String result = await mediator.runCommand(GetAsStringCommand(123));
  print(result);
}

Constructors

Mediator()

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

associateBaseEvent<TSuper extends TBase, TBase extends IEvent>() → void
Associates a specific Type with it's base Type.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
raise<TEvent extends IEvent>(TEvent event) → Future<void>
Raises the given event.
registerCommand<TCommand extends ICommand<TResult>, TResult>(ICommandHandler<TCommand, TResult> handler) → void
Registers an ICommandHandler for a custom ICommand type.
registerQuery<TQuery extends IQuery<TResult>, TResult>(IQueryHandler<TQuery, TResult> handler) → void
Registers an IQueryHandler for a custom IQuery type.
runCommand<TCommand extends ICommand<TResult>, TResult>(TCommand command) → Future<TResult>
Executes the given command if a handler for it could be found, otherwise throws the StateError.
runQuery<TQuery extends IQuery<TResult>, TResult>(TQuery query) → Future<TResult>
Executes the given query if a handler for it could be found, otherwise throws the StateError.
subscribe<TEvent extends IEvent>(EventFuction<TEvent> callback) → EventSubscription
Subscribes a callback to be executed when the TEvent is raised.
toString() → String
A string representation of this object.
inherited
unsubscribe(EventSubscription subscription) → void

Operators

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