getOneRequired<T> method
Gets a required component reference that matches specified locator.
locator
the locator to find a reference by. Returns a matching component reference. Throws a ReferenceException when no references found.
Implementation
@override
T getOneRequired<T>(locator) {
var components = find<T>(locator, true);
if (components.isEmpty) throw ReferenceException(null, locator);
return components[0];
}