canCreate method
- dynamic locator
override
Checks if this factory is able to create component by given locator.
This method searches for all registered components and returns a locator for component it is able to create that matches the given locator. If the factory is not able to create a requested component is returns null.
locator
a locator to identify component to be created. Return a locator for a component that the factory is able to create.
Implementation
@override
dynamic canCreate(locator) {
if (locator == null) {
throw Exception('Locator cannot be null');
}
// Iterate from the latest factories
for (var index = _factories.length - 1; index >= 0; index--) {
var thisLocator = _factories[index].canCreate(locator);
if (thisLocator != null) return thisLocator;
}
return null;
}